Social Data (FY2024)

Scope of Coverage

  • Major Group companies:
    Following seven companies of Taisei Rotec Corporation, Taisei-Yuraku Real Estate Co., Ltd., TAISEI U-LEC CO.,LTD, SEIWA RENEWAL WORKS CO.,LTD., Taisei SETSUBI Co., Ltd., J-FAST Co., Ltd., Taisei HOUSING CORPORATION (until FY2022)
    * From FY2023, PS Construction Co.,Ltd., SATOHIDE CORPORATION are included.
    * Sales from Taisei Corporation and the major Group companies mentioned above account for 90% of the whole Group sales
  • Major six Group companies: Excluding J-FAST Co., Ltd.
  • Major eight Group companies: Including Taisei-Yuraku Real Estate Sales Co.,Ltd.

Period Covered

Fiscal year ended March 31, 2025 (April 1, 2024 to March 31, 2025).

Disclosure Date

September 30, 2025

Human Capital

Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024
Number of
employees*1
(consolidated)		 Total Full-time employees Persons 14,620 14,518 14,466 16,285 16,382
Genders Male Persons 11,959 11,822 11,722 13,249 13,103
Female 2,661 2,696 2,744 3,036 3,279
Total Full-time employees Persons 14,620 14,518 14,466 16,285 16,382
Countries Japanese employees Persons 13,747 13,645 13,611 15,278 15,311
Non-Japanese employees 873 873 855 1,007 1,071
Total Full-time employees Persons 14,620 14,518 14,466 16,285 16,382
Segments Civil Engineering Persons 4,257 4,263 4,268 5,472 5,418
Building Construction 8,160 8,103 8,133 8,804 9,001
Real Estate Development 2,044 1,979 1,898 1,875 1,795
Other 159 173 167 134 168
Number of temporary
employees*2
(consolidated)		 Total Full-time employees Persons 3,951 3,993 4,035 4,286 4,484
Segments Civil Engineering Persons 783 804 848 904 1,048
Building Construction 1,322 1,369 1,327 1,500 1,590
Real Estate Development 1,774 1,733 1,772 1,793 1,751
Other 72 87 88 89 95
  • *1Calculated as of March 31, 2025.
  • *2Calculated based on the annual average number.
Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024
Number of employees*1
(non-consolidated)		 Total Full-time employees Persons 8,572 8,579 8,613 8,720 8,994
Genders Male Persons 6,970 6,955 6,939 6,976 7,101
Female 1,602 1,624 1,674 1,744 1,893
Total Full-time employees Persons 8,572 8,579 8,613 8,720 8,994
Countries Japanese employees Persons 8,512 8,514 8,538 8,638 8,822
Non-Japanese employees 60 65 75 82 172
Total Age group % 100.0 100.0 100.0 100.0 100.0
Ages 20-29 % 18.0 18.5 18.6 19.2 20.8
30-39 19.7 20.4 21.3 21.5 22.0
40-49 22.9 21.0 19.7 19.1 18.4
Over 50 39.4 40.1 40.4 40.2 38.8
Total Full-time employees Persons 8,572 8,579 8,613 8,720 8,994
Segments Civil Engineering Persons 2,323 2,324 2,333 2,354 2,469
Building Construction 6,084 6,084 6,109 6,188 6,351
Real Estate Development 165 171 171 178 174
Number of temporary
employees*2
(consolidated)		 Total Full-time employees Persons 1,217 1,225 1,284 1,348 1,461
Segments Civil Engineering Persons 351 351 384 401 446
Building Construction 834 841 867 913 983
Real Estate Development 32 33 33 34 32
  • *1Calculated as of March 31, 2025.
  • *2Calculated based on the annual average number.
Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024  
Average annual salary / Average age Non-
consoli-
dated		 Average annual salary 1,000 yen 9,850 9,635 9,929 10,246 10,580  
Average age Age 42.9 42.9 43.0 42.9 42.4
Male Age 43.3 43.3 43.4 43.4 42.9
Female 41.6 41.5 41.2 40.9 40.3
Average service years / Turnover rates Non-
consoli-
dated		 Average service years Years 18.3 18.2 18.1 17.9 17.2
Male Years 18.8 18.8 18.7 18.6 17.9
Female 16.3 15.9 15.6 15.2 14.3
Taisei Group*1 Voluntary turnover rate % — 2.1 2.3 3.4 2.4
Non-
consoli-
dated		 Voluntary turnover rate % 1.2 1.5 1.6 1.8 1.5
Voluntary turnover rate
(of employees within three years of joining the Company)		 7.6 8.3 10.3*2 9.6*2 9.4 [FY2026 Targets]
6% or less
  • *1Taisei Corporation and eight main Group companies (nine companies in total) until FY2023. From FY2024 onward, PS Construction Co., Ltd. and SATOHIDE CORPORATION have been added,bringing the total to ten companies.
  • *2Retroactively adjusted.
Employment status Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024  
Number of hires
(non-consolidated)		 Total Newly employed graduates*1 Persons 329 302 276 316 428  
Genders Male Persons 270 253 218 246 319
Female 59 49 58 70 109
Total Mid-career hire Persons 11 28 69 102 164
Genders Male Persons 11 23 60 82 143
Female 0 5 9 20 21 [FY2030 target]
Hiring ratio of mid-career female employees:
25% or more
Rate of employment
of persons with disabilities*2		 Taisei Group*3 Rate of employment of persons with disabilities % — 2.06 2.10 2.15 2.45  
Non-
consoli-
dated		 Rate of employment of persons with disabilities 2.30*4 2.24*4 2.35 2.48 2.58
Number of reemployed employees Non-
consoli-
dated		 Number of employees reemployed after retirement Persons 862 878 905 903 998
Number of former employees who took advantage of the Job-Return system*5 3 4 4 10 3
  • *1The scope of coverage is the career-track position and professional-grade position.
  • *2Calculated as of June 1, each fiscal year.
  • *3Scope of coverage: Taisei Corporation and seven major Group companies.
  • *4Retroactively adjusted.
  • *5Job return: a system to provide the Group's job information and reemploy personnel who have voluntarily resigned after resolving or mitigating the circumstances leading to retirement so that they can return to the workplace.
Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024
Number of public qualification holders Non-
consoli-
dated		 First-class architects Persons 3,241 2,552 2,557 2,516 2,539
First-class civil engineering works execution managing engineers 2,480 1,877 1,921 1,918 1,967
First-class construction accountants — — 263 258 257

Note: Scope of coverage is regular, re-employment and contract employees.

Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024
Labor union Taisei Group*1 Eligible labor union members Persons — — — 12,612 11,911
Number of labor union members — — — 10,392 10,731
Labor union participation rate*2 % — — — 82.4 90.1
Non-consolidated Eligible labor union members Persons — — — 8,402 8,678
Number of labor union members — — —— 8,402 8,678
Labor union participation rate*2 % 100.0 100.0 100.0 100.0 100.0
  • *1Scope of coverage: Taisei Corporation and ten major Group companies.
  • *2Labor union participation rate: percentage of all employees represented by an officially elected employee representative. The Group's rate is calculated as of March 1, each fiscal year, and non-consolidated rate is calculated as of April 1, the next fiscal year.
Indicators Month FY2020 FY2021 FY2022 FY2023 FY2024  
Employee engagement Non-consolidated Engagement score Jun. — — B 50.0 B 49.9 BB 53.2 [FY2026 Target]
BBB 55
[FY2030 Target]
A 60
Dec. — — — B 50.2 BBB 55.0
Response rate (%) Jun. — — 82.3 85.1 86.8  
Dec. — — — 88.2 90.6

Note: Engagement Survey was conducted by Link and Motivation Inc. Coverage was switched from the union members to all employees from FY2022. The survey used their evaluation system, which ranks on an 11-point scale from AAA to DD.

DD DDD C CC CCC B BB BBB A AA AAA
Under
33		 Under
39		 Under
42		 Under
45		 Under
48		 Under
52		 Under
55		 Under
58		 Under
61		 Under
67		 Over
67

DEI and Capacity Development

Diversity Indicator Indicators Unit FY2024
TAISEI CORPORATION Rate of women in management positions % 7.5*1
Rate of taking childcare leave by male employees 118.5*2
Gender wage gap*1,3 All workers 58.4
Regular workers 59.0
Part-time and fixed-term workers 56.8
  • *1Calculated in accordance with the provisions of the “Act on Promotion of Women’s Participation and Advancement in the Workplace.”
  • *2The rate of adoption of childcare leave and leave for the purpose of childcare is calculated as set forth in Article 71-6, item (ii) of the “Ordinance for Enforcement of the Act on the Welfare of Workers Who Take Care of Children or Other FamilyMembers Including Child Care and Family Care Leave” in accordance with the provisions of the “Act on the Welfare of Workers Who Take Care of Children or Other Family Members Including Child Care and Family Care Leave.”
  • *3As for the gender wage gap, the Company has applied the same wage system regardless of gender. Therefore, the wage gap is due to factors such as differences in the average age and the number of workers on the payroll.
Diversity Indicators Indicators Unit FY2024
Taisei Rotec Corporation Rate of women in management positions % 0.7*1
Rate of taking childcare leave by male employees 89.3*3
Gender wage gap*1,4 All workers 54.3
Regular workers 54.8
Part-time and fixed-term workers 55.8
Taisei-Yuraku Real Estate Co., Ltd. Rate of women in management positions % 1.7*1
Rate of taking childcare leave by male employees 60.9*2
Gender wage gap*1,4 All workers 69.8
Regular workers 78.4
Part-time and fixed-term workers 56.5
PS Construction Co., Ltd. Rate of women in management positions % 0.7*1
Rate of taking childcare leave by male employees 395.0*3
Gender wage gap*1,4 All workers 57.9
Regular workers 57.7
Part-time and fixed-term workers 58.6
TAISEI U-LEC Co., LTD. Rate of women in management positions % 4.6*1
Rate of taking childcare leave by male employees 100.0*3
Gender wage gap*1,4 All workers 81.5
Regular workers 78.4
Part-time and fixed-term workers 75.7
TAISEI SETSUBI CO.,LTD. Rate of women in management positions % 3.5*1
Rate of taking childcare leave by male employees 12.5*2
Gender wage gap*1,4 All workers 66.9
Regular workers 67.7
Part-time and fixed-term workers 57.6
J-FAST Co., Ltd. Rate of women in management positions % 0.0*1
Rate of taking childcare leave by male employees 62.5*2
Gender wage gap*1,4 All workers 72.8
Regular workers 73.2
Part-time and fixed-term workers 73.1
Taisei-Yuraku Real Estate Sales Co., Ltd. Rate of women in management positions % 3.4*1
Rate of taking childcare leave by male employees 55.6*3
Gender wage gap*1,4 All workers 44.1
Regular workers 58.9
Part-time and fixed-term workers 24.1
TAISEI HOUSING CORPORATION Rate of women in management positions % 10.4*1
Rate of taking childcare leave by male employees 50.0*2
Gender wage gap*1,4 All workers 74.5
Regular workers 73.5
Part-time and fixed-term workers 72.6
SATOHIDE CORPORATION Rate of women in management positions % 2.3*1
Rate of taking childcare leave by male employees ★
Gender wage gap*1,4 All workers 74.4
Regular workers 68.7
Part-time and fixed-term workers 91.2
  • *1Calculated in accordance with the provisions of the Women’s Advancement Act.
  • *2The rate of childcare leave adoption is calculated as set forth in Article 71-6, item (i) of the Childcare and Caregiver Leave Ordinance in accordance with the provisions of the Childcare and Caregiver Leave Act.
  • *3The rate of adoption of childcare leave and leave for the purpose of childcare is calculated as set forth in Article 71-6, item (ii) of the Childcare and Caregiver Leave Ordinance in accordance with the provisions of the Childcare and Caregiver Leave Act.
  • *4As for the gender wage gap, the consolidated subsidiaries have applied the same wage system regardless of gender. Therefore, the wage gap is due to factors such as differences in the average age and the number of workers on the payroll.

A star mark (★) indicates that statement has been omitted as the entity is outside the scope of mandatory disclosure under the Women’s Advancement Act and the Childcare and Caregiver Leave Act.

DE&I indicators Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024
Ratio of Female Wages to Male Wages Non-
consoli-
dated		 All employees
(full-time employees)		 % — 58.2 59.2 57.6 58.4
Regular employees — 57.4 59.4 58.0 59.0
Career-track positions — 66.0 68.7 67.4 67.3
Professional-grade positions — 72.1 69.5 74.0 78.2
Minor career-track positions — 83.3 78.8 84.4 90.2
Non-regular employees — 58.3 58.3 57.9 56.8

Note: The wage gap between men and women is due to differences in average age, etc., but not to the system.

DE&I Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024  
Percentage of hires (new graduates) Non-
consoli-
dated		 Percentage of newly employed female graduates % 17.9 16.2 21.0 22.2 25.5 [FY2026 target]
27%
[FY2030 target]
30% or more
Percentage of newly employed female engineers 16.1 13.6 18.7 20.1 22.7 [FY2030 target]
25%
Percentage of hires (mid-careers) Non-
consoli-
dated		 Percentage of mid-career female hires % 0 17.9 13.0 27.4 12.8  
Number / Percentage of managers and percentage of career-track positions Non-
consoli-
dated		 Number of female managers*1 Persons 236 277 314 355 402
Number of women in managerial positions*2*3 Persons 8 9 10 14 17 [FY2030 target]
Number of Women in Managerial Positions: 8 times or more (vs. FY2020)
Percentage of women in managerial positions*3*4 % 4.5 5.1 5.9 6.6 7.4  
Percentage of women in career-track positions*5 — — — — 12.7 [FY2030 target]
15% or more
Number / ratio of engineers Non-
consoli-
dated		 Number of female engineers Persons 738 767 809 877 958  
Female engineers' ratio % 9.9 10.2 10.6 11.3 11.9
  • *1Calculated as of July 1, 2024.
  • *2Calculated as of Mach 1, each fiscal year.
  • *3“Managerial position” refers to roles such as chief or deputy chief of a division, chief manager, project manager, and sales office manager.
  • *4The indicator was "percentage of female managers" from FY2020 to FY2023. Since FY2024, it has been changed to "percentage of females in managerial positions."
  • *5The number of employees in career track positions out of the number of employees for FY2024 is 7,454.
Childcare and Nursing Care Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024  
Number / rate / return rate of employees taking leave for childcare Non-
consoli-
dated		 Number of employees taking leave for childcare Persons 299 281 298 309 309  
Male 253 232 248 259 269
Female 46 49 50 50 40
Rate of taking childcare leave % 100.0 100.0 99.6 100.0 99.4
Rate of taking childcare leave by males* 100.0 100.0 119.1 130.9 118.5 [FY2030 target]
100%
[FY2030 target]
30 days or more
Average number of days of childcare leave taken by males Days 7.1 9.7 11.6 17.3 22.5
Rate of taking childcare leave by females % 100.0 100.0 97.6 100.0 95.0  
Return rate from childcare leave 100.0 99.7 96.6 100.0 97.8
Male 100.0 100.0 100.0 100.0 100.0
Female 100.0 97.9 95.6 100.0 96.0
Work-life balance support Non-
consoli-
dated		 Flextime System for Balancing Childcare and Work (cumulative) Persons 35 45 58 79 122  
Nursing care leave Non-
consoli-
dated		 Number of employees taking nursing care leave Persons 1 1 1 1 3
Number of employees taking paid nursing care leave — 175 179 241 307
  • Note:Until FY2021, the calculation was based on the Company’s internal system (the percentage of male employees who took childcare leave during their eligible period following the birth of a child). From FY2022 onward, the calculation has been based on the Child Care and Family Care Leave Act (denominator: employees who had a child during the fiscal year; numerator: those who took childcare leave or leave for childcare purposes during the fiscal year).
DE&I training Indicators Unit   (FY)
Number of training participants
(non-consolidated)		 Managers Diversity management training Persons 1,404 FY2013-FY2024
Female employees Next-generation leadership development training 305 FY2012-FY2024
Female managers Development Program for Women in Managerial Positions* (cumulative) 35 FY2023-FY2024
Foreign national employees Training for foreign national employees 244 FY2013-FY2024

Note: The name of "female position leadership and coaching training" was changed to "development program for women in managerial positions" from FY2024.

Human capital development training Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024
Total training hours / budget / participants Non-
consoli-
dated		 Total training hours for capacity development*1 Hours 233,143 231,706 566,424 563,353 597,694
Taisei Group*2 — — — 757,224 831,528
Non-
consoli-
dated		 Training hours per person*1 27.0 26.7 65.0 63.8 65.5
Taisei Group*2 — — — 50.3 55.2
Non-
consoli-
dated		 Total training budget*1 Millions of yen — 299 406 711 896
Taisei Group*2 — — — 892 1,100
Non-
consoli-
dated		 Number of eligible training participants*1 Persons — — — 8,830 9,119
Taisei Group*2 — — — 15,045 15,075
Non-
consoli-
dated		 Total number of participants*1 Persons — 4,360 76,585 78,113 134,462
Taisei Group*2 — — — 148,151 249,866
Number of hires Non-
consoli-
dated		 Number of regular employees promoted from non-regular employees Persons 20 38 30 29 59
Training hours for new graduates Non-
consoli-
dated		 Training hours per new graduate Hours 176.3 176.7 511.5 496.9 461.5
  • *1Up to FY2021, data was collected from training sessions hosted by the head office. Since FY2022, training programs conducted by branches and company-wide e-learning programs have also been included in the aggregation.
  • *2Scope of coverage: Taisei Corporation and ten major Group companies.
Capacity development training Indicators Number of eligible participants
(persons)		 Number of participants
(Persons)		 FY2024
Attendance rate
(%)		 Training hours Training hours per person
Training for new graduates Non-
consoli-
dated		 Introduction training for new graduates*2 463 463 100.0 25,118 54.3
Taisei Group*1 Introduction training for new graduates 714 714 100.0 58,699 82.2
Management training Non-
consoli-
dated		 Step-up training for managers
(Employees who have been promoted)		 229 229 100.0 4,437 19.4
Taisei Group*1 Step-up training for managers-to be 526 473 89.9 7,949 16.8
Management training for soon-to-be-managers 106 101 95.3 1,329 13.2
  Non-
consoli-
dated		 Power-up management training for newly-appointed employees in managerial positions 114 105 92.1 2,209 21.0
Training for newly-appointed general manager (Employees who have been promoted) 79 79 100.0 790 10.0
Taisei Group*1 Training for senior management
(Employees endorsed by the department)		 1,038 664 64.0 6,537 9.8
Non-
consoli-
dated		 Global training
(Employees endorsed by the department)		 24 24 100.0 372 15.5
  • *1Scope of coverage: Taisei Corporation and ten major Group companies
  • *2Scope of coverage: New graduates in career-track, professional-grade, and minor career-track positions.

Occupational Health and Safety

Health and holidays Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024  
Working hours / Health management overtime hours*1 / Implementation rate of worksite closure Non-
consoli-
dated		 Total hours worked per month Hours 194.1 190.9 187.5 185.2 180.3  
Average overtime hours per month*2 39.8 38.5 36.6 35.5 30.3
Health management overtime hours (Rate of employees who worked exceeded 720 overtime hours per year) % Employees exceeded
25.4		 Employees exceeded
23.5		 Employees exceeded
18.2		 Employees exceeded
16.6		 Employees exceeded
8.3
Worksite implementation rate of a five-day work week (closed eight days infour weeks) (Building Construction) — 26.6 27.8 39.0 49.9 [FY2026 target]
100%
[FY2030 target]
100%
Worksite implementation rate of a five-day work week (closed eight days in four weeks) (Civil Engineering) — 49.5 52.2 69.6 80.0
Health checkups Non-
consoli-
dated		 Percentage of employees attending health checkups % — — — 99.8 99.9  
Percentage of employees with a BMI of 25 or higher*3 — — — 33.5 33.9
Percentage of employees who regularly exercise (30 minutes or more per session, at least twice a week) — — — 19.2 27.9
Percentage of employees who regularly drink (3 times a week or more + 180 ml or more per day) — — — 41.6 31.0
Percentage of employee smokers (everyday, sometimes) — — — 23.5 23.4
Percentage of employees who have gained 10kg or more in weight since the age of 20 — — — 41.6 41.7
Percentage of employees who are satisfied with their sleep — — — 60.4 73.0
Stress check / Health awareness survey / Consultation services Non-
consoli-
dated		 Implementation rate of stress checks % 91.6 91.0 92.3 92.6 91.0 [Every fiscal year]
100%
Percentage of younger employees answering health awareness survey — — — 88.4 89.1
Number of employees using the consultation services for female health problem (Femtech) (cumulative) Persons — — 136 268 560  
Annual leave / milestoneleave / refresh leave Non-
consoli-
dated		 Utilization rate of annual leave % 46.5 49.3 54.5 58.3 60.0 [FY2025 target]
70%
Utilization rate of milestone leave*4 79.2 83.4 78.6 72.5 68.9 [Every fiscal year]
100%
Utilization rate of refresh leave*5 81.2 83.2 85.9 83.5 79.5
  • *1Overtime used as an indicator for deciding whether measures to prevent health problems (e.g., guidance by a physician) need to be taken. (Total of statutory overtime working hours and holiday working hours)
  • *2Management overtime hours are not included.
  • *3BMI: An indicator of a BMI above 25 is set for the purpose of increasing employees with normal weight (BMI 18.5-24.9)
  • *4Milestone leave: Special leave able to be taken when an employee at a worksite is transferred or reaches certain milestones of the construction project.
  • *5Refresh leave (wellness leave): A program that grants leave to employees who have been with the company for 10, 20, or 25 years and those who have reached 55 years old. The leave is valid for two years and calculated based on the rate of taking the leave by eligible employees the previous fiscal year.
Safety performance Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024  
Accident frequency rate*1 / Accident severity rate / Number of occupational accident leaves Taisei Group*2 Occupational accident frequency rate % 0.37 0.56 0.38 0.64 0.65  
Non-
consoli-
dated		 Occupational accident frequency rate 0.35 0.44 0.32 0.51 0.57
Accident severity rate 0.34 0.08 0.01 0.01 0.12
Number of occupational accident leaves (excluding fatal accident) Cases 35 45 35 62 80
Number of fatal accidents Taisei Group*2 Number of fatal accidents Cases 5 1 1 0 2
Number of fatal accidents (employees) Persons 0 0 0 0 0
Number of fatal accidents (subcontractors and suppliers) 5 1 1 0 2
Non-
consoli-
dated		 Number of fatal accidents Cases 5 1 0 0 2
Number of fatal accidents (employees) Persons 0 0 0 0 0
Number of fatal accidents (subcontractors and suppliers) 5 1 0 0 2
  Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024  
Numbers of fatal accidents and serious accidents / Number of environmental accidents Non-
consoli-
dated		 Numbers of fatal accidents and serious accidents Cases 5 1 0 0 2 [FY2026 target] 0 cases
[FY2030 target] 0 cases
Number of environmental accidents — — — 0 0 [FY2026 target] 0 cases
  • *1Accident frequency rate: The frequency of accidents is expressed as the number of deaths and injuries caused by industrial accidents per 1 million actual working hours. Figures for all industries and the construction industry are based on one or more days off (calendar year), while those for the Company are based on four or more days off (fiscal year).
  • *2Scope of coverage: Taisei Corporation and six Group companies (over 90% coverage) until FY2023. From FY2024 onward, PS Construction Co., Ltd. and SATOHIDE CORPORATION have been added, bringing the total to nine companies.
Safety and health training Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024
Safety and health training of employees
(non-consolidated)		 Total Number of employees receiving safety and health training Persons 1,063 1,200 1,298 1,457 1,896
By training Education upon hiring and education for in-house employees Persons — — — 503 720
Basic, intermediate and supervisory management courses — — — 726 990
Training for General Safety and Health Supervisors, General Safety and Health Managers, and Principal Safety and Health Managers — — — 137 109
Training for construction project managers — — — 57 30
Training for newly-assigned patrol duty — — — 34 47
Health and safety Indicator Unit FY2020 FY2021 FY2022 FY2023 FY2024  
Worksites / employees taking measures on health and safety Taisei Group*1 Percentage of employees who are covered by the official safety and health committee of joint labor among all employees % — — — 91.1 91.1  
Number of members*2 Persons — — — 15,971 16,134
Applicable persons*2 — — — 17,530 17,703
Percentage of employees covered by the official collective bargaining agreement on conditions of work among all employees % — — — 86.6 90.5
Number of members*2 Persons — — — 10,970 11,275
Applicable persons*2 — — — 12,654 12,455
Percentage of employees who regularly have evaluation on performance and career development among all employees % — — — 95.7 —
Number of members Persons — — — 15,284 —
Applicable persons — — — 15,965 —
Non-
consoli-
dated		 Percentage of employees who are covered by the official safety and health committee of joint labor among all employees % — — — 100.0 100.0
Number of members*2 Persons — — — 9,355 9,648
Applicable persons*2 — — — 9,355 9,648
  Percentage of employees covered by the official collective bargaining agreement on conditions of work among all employees % — — — 100.0 100.0  
Number of members*2 Persons — — — 8,402 8,678
Applicable persons*2 — — — 8,402 8,678
Percentage of employees who regularly have evaluation on performance and career development among all employees (Implementation rate of career development review) % 88.0 89.0 88.2 94.4 94.2 [Annually] 100%
  Number of members Persons — — — 7,916 8,172  
Applicable persons — — — 8,387 8,671
  • *1Taisei Group: Taisei Corporation and nine major Group companies.
  • *2The numbers of members and applicable persons of percentage of employees who are covered by the official safety and health committee of joint labor among all Group employees were calculated as of March 31, 2025. The numbers of members and applicable persons of percentage of employees who are covered by the official safety and health committee of joint labor among all employees of the Company were calculated as of April 1.
    The numbers of members and applicable persons of percentage of employees covered by the official collective bargaining agreement on conditions of work among all Group employees were calculated as of March 1. The numbers of members and applicable persons of percentage of employees covered by the official collective bargaining agreement on conditions of work among all employees of the Company were calculated as of April 1.
CCUS Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024
Worksite registration rate of Construction CareerUp System Non-
consoli-
dated		 Worksite registration rate of ConstructionCareer Up System (CCUS*1) % 100 100 100 100 100
Business operator registration rate 83 90 95 99 97
Skilled worker registration rate 71 81 88 96 96
Accumulation of employment history rate 67 79 87 96 92
  • *1CCUS (Worksite registration rate of Construction Career Up System): system to register and visualize the skills, experience and qualifications, status of enrollment in social insurance programs, etc., of each of the skilled construction workers under uniform rules of the industry, to strengthen cooperation with partner organizations.

Quality, Procurement, and Social Contribution

Quality and customer satisfaction Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024  
Customer satisfaction Non-
consoli-
dated		 Customer satisfaction
(Building Construction)		 % 90.0 90.0 85.9 82.8 82.6 [FY2026 target]
100%
[FY2030 target]
100%
Customer satisfaction
(Civil Engineering)		 98.6 97.6 95.8 98.6 99.6
Number of major external awards Non-
consoli-
dated		 Number of major external awards
(Building Construction)		 Cases 5 12 13 11*1 17*1 [FY2026 target]
12 cases
Number of major external awards
(Civil Engineering)		 5 9 11 8*1 15*1 [FY2026 target]
6 cases
Number of quality-related problems Non-
consoli-
dated		 Number of serious quality-related problems*2 Cases — — — 0 0 [FY2026 target]
0 cases
[FY2030 target]
0 cases
  • *1Building Construction: BCS Award / Annual Architectural Design Commendation of Architectural Institute of Japan / Young Architect Award for Selected Architectural Designs of the Architectural Institute of Japan / Selected Works of the Architectural Institute of Japan / BELCA Award / The Institute of Electrical Installation Engineers Award, technical Category / Japan Illumination Award / Minister of the Environment Awards for Climate Action Civil
    Civil Engineering: JSCE Awards (Outstanding Civil Engineering Achievement Award, Innovative Technique Award, Tanaka Award) / Japan Federation of Construction Contractors, Doboku Prize
  • *2Incidents and accidents that may incur serious damage to the management of the Company and the Group companies among those that occur in the business activities of the Company.
Community activities and regional collaboration Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024  
Community activities and volunteering investment costs / Number of regional collaborative projects Non-
consoli-
dated		 Community activities and volunteering investment costs Million yen 492 787 673 349 828  
Number of regional collaborative projects* Cases — — — 9 15 [FY2026 target]
15 cases
[FY2030 target]
50 cases
  • *Regional collaborative project: Municipalities and companies collaborate to tackle local issues together.
Technology development Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024  
Research and development expenditure Consolidated Research and development expenditure Billion yen 142 152 168 186 195  
Number of patents / Number of patent applications filed Non-
consoli-
dated		 Number of patents registered Cases 202 209 232 245 211
Non-
consoli-
dated		 Number of patent applications filed
(3 years total)		 — — — 837 809 [FY2026 target]
840 cases
(3 years total)

[FY2030 target]
1,100 cases
(4 years total)
Non-
consoli-
dated		 Number of patent applications filed 266 272 283 282 244  
ZEB-related index Non-
consoli-
dated		 ZEB ratio of design and build projects
(ratio by area)		 % — — — 40 74 [FY2026 target] 70%
[FY2030 target] 100%
Number of digital advanced usage site offices Non-
consoli-
dated		 Number of digital advanced usage site offices (cumulative)* Cases — — — 290 324 [FY2026 target] 650 worksites
[FY2030 target] all worksites
  • *Number of site offices with T-BasisX® and T-iDigital® Field installations (cumulative)
Procurement practice and human rights Indicators Unit FY2020 FY2021 FY2022 FY2023 FY2024  
Percentage of confirmation on suppliers' activities Non-
consoli-
dated		 Percentage of confirmation on suppliers' sustainability activities (by number of companies) % — — 53 54 48 [FY2026 target] 100%
[FY2030 target]
Taisei Group: 100%
Percentage of confirmation on suppliers' sustainability activities (by contract amount) — — 79 89 73  
Human rights training Non-
consoli-
dated		 Implementation rate of training on human rights % 99.5 95.3 96.0 95.5 94.0
Cases of violation of the rights of indigenous peoples Cases — 0 0 0 0