従業員の状況
|
2011/03
|
2012/03
|
2013/03
|
2014/03
|
2015/03
|
2015/12
|
2016/12
|
2017/12
|
2018/12
|
2019/12
|
2020/12
|
2021/12
|
2022/12
|
2023/12
|
2024/12
|
2025/12
|
|
機械
|
|
|
|
|
|
|
|
|
|
|
|
32,163
(2,885)
|
38,682
(11,689)
|
40,484
(12,413)
|
39,604
(13,534)
|
41,342
|
|
水・環境
|
|
|
|
|
|
|
|
|
|
|
|
7,388
(267)
|
7,543
(316)
|
7,645
(257)
|
7,681
(352)
|
8,379
|
|
合計
|
|
|
|
|
|
|
|
|
|
|
|
43,293
(3,356)
|
50,352
(12,213)
|
52,608
(12,924)
|
52,094
(14,120)
|
52,503
|
|
2011/03
|
2012/03
|
2013/03
|
2014/03
|
2015/03
|
2015/12
|
2016/12
|
2017/12
|
2018/12
|
2019/12
|
2020/12
|
2021/12
|
2022/12
|
2023/12
|
2024/12
|
2025/12
|
|
機械
|
|
|
|
|
|
|
|
|
|
|
|
7,224
|
7,686
|
8,844
|
9,360
|
11,569
|
|
水・環境
|
|
|
|
|
|
|
|
|
|
|
|
2,500
|
2,506
|
2,674
|
2,718
|
3,017
|
|
合計
|
|
|
|
|
|
|
|
|
|
|
|
11,711
|
12,474
|
14,638
|
15,472
|
15,897
|
（注）括弧内は平均臨時雇用人員
|
2011/03
|
2012/03
|
2013/03
|
2014/03
|
2015/03
|
2015/12
|
2016/12
|
2017/12
|
2018/12
|
2019/12
|
2020/12
|
2021/12
|
2022/12
|
2023/12
|
2024/12
|
2025/12
|
|
平均年間給与（万円）
|
|
|
|
|
|
|
|
|
|
|
|
794
|
811
|
798
|
824
|
-
|
|
平均年齢
|
|
|
|
|
|
|
|
|
|
|
|
40.4
|
40.1
|
40
|
39.9
|
-
|
|
平均勤続年数
|
|
|
|
|
|
|
|
|
|
|
|
14.9
|
14.2
|
13.8
|
13.5
|
-
|