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    Engineering & Construction
Costain Group PLC

Costain Group PLC

COST.L
Costain Group PLCGB flagLondon Stock Exchange
194.40
GBp
+1.80
- -
519.74MMarket Cap
2013 Y
2014 Y
2015 Y
2016 Y
2017 Y
2018 Y
2019 Y
2020 Y
2021 Y
2022 Y
2023 Y
2024 Y
2025 Y
Revenue per Share
12.57
10.66
11.69
14.41
15.14
12.96
10.11
4.6
4.13
5.17
4.87
4.61
3.89
Basic EPS, GAAP
0.18
0.21
0.21
0.24
0.29
0.29
-0.03
-0.37
-0.02
0.09
0.08
0.11
0.14
Free Cash Flow per Basic Share
-0.54
0.34
0.12
0.55
0.44
-0.44
-0.34
-0.24
0.1
0.05
0.25
0.12
0.18
Dividend per Share
0.1
0.08
0.09
0.1
0.11
0.12
0.12
- -
- -
- -
- -
0.01
0.03
Book Value per Share
0.48
1.02
1.04
0.79
1.25
1.45
1.23
0.66
0.66
0.71
0.75
0.31
0.4
Tangible Book Value per Share
0.15
0.79
0.63
0.31
0.82
1.1
0.86
0.49
0.53
0.58
0.63
0.68
0.77
Basic Weighted Avg Shares
70
101
108
109
111
113
114
213
275
275
274
271
268
Sales/Revenue/Turnover
885
1,072
1,264
1,574
1,684
1,464
1,156
978
1,135
1,421
1,332
1,251
1,046
Operating Margin (%)
2.58
2.19
2.34
2.22
2.8
2.94
0.49
-9.4
-0.84
2.46
2.01
2.49
4.28
Depreciation Expense
5
5
7
12
8
7
20
26
14
12
16
12
13
Net Income, GAAP
12
21
22
26
33
33
-3
-78
-6
26
22
31
37
Effective Tax Rate (%)
3.1
7.08
14.62
14.56
22.01
18.41
- -
- -
- -
21.04
28.48
16.16
22.61
Profit Margin (%)
1.41
1.96
1.76
1.68
1.94
2.24
-0.25
-7.97
-0.51
1.82
1.66
2.45
3.57
Working Capital
-20
48
49
71
117
141
106
104
78
68
92
96
125
LT Debt
- -
- -
- -
30
61
60
65
60
50
18
14
13
16
Total Equity
43
111
121
100
154
182
158
156
199
211
219
236
258
Return on Invested Capital (%)
41.41
23.76
18.44
17.81
18.09
14.37
- -
- -
- -
10.89
7.9
10.31
12.72
Return on Capital (%)
39.43
29.87
20.2
19.6
20.35
16.05
- -
- -
- -
12.28
11.01
20.09
33.83
Return on Common Equity (%)
42.96
30.79
20.64
26.51
28.93
21.66
-1.9
-55.61
-3.6
13.77
11.09
21.32
39.49

Capital Structure

FRC

•

in mil. unless spec.
No data availableFinancial data will appear here once available

Working Capital

FRC

•

in mil. unless spec.
No data availableFinancial data will appear here once available

Growth Rates

FRC

•

in mil. unless spec.

(avg. rate of change)

10 years
5 years
1 year
Total Equity
9.55%
10.83%
9.55%
Free Cash Flow
33.84%
40.29%
44.35%
Net Income, GAAP
193.04%
-118.68%
21.9%
Sales/Revenue/Turnover
-0.55%
2.49%
-16.42%
Total Cash Common Dividend
- -
- -
128.12%

Quarterly Revenue

FRC

•

in mil. unless spec.

Year

Q1
Q2
Q3
Q4
FY
2023
- -
- -
- -
- -
1,332
2024
- -
- -
- -
- -
1,251
2025
- -
- -
- -
- -
1,046

Quarterly Earnings Per Share

FRC

•

in mil. unless spec.

Year

Q1
Q2
Q3
Q4
FY
2023
- -
- -
- -
- -
0.08
2024
- -
- -
- -
- -
0.11
2025
- -
- -
- -
- -
0.14

Quarterly Dividends Per Share

FRC

•

in mil. unless spec.

Year

Q1
Q2
Q3
Q4
FY
2023
- -
- -
- -
- -
- -
2024
- -
- -
- -
- -
0.01
2025
- -
- -
- -
- -
0.03

Company Description

APIChat
CEO
Alexander John Vaughan
Full Time Employees
3,095
Sector
Industrials
Industry
Engineering & Construction
Address
Costain House London United Kingdom SL6 4UB
IPO Date
Jul 1, 1988
Website
costain.com
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Business
Costain Group PLC provides engineering, construction, consulting, and maintenance services for sustainable infrastructure projects across the United Kingdom's transport, water, energy, defence, and nuclear sectors. The company operates through two divisions, Natural Resources including water treatment and distribution, energy transition and resilience projects such as hydrogen pipelines and carbon capture systems, hydrocarbons and chemicals processing, nuclear decommissioning and fuels facilities, waste management, and defence infrastructure; and Transportation encompassing road network expansions and upgrades, rail systems including high-speed lines and mechanical-electrical installations, integrated transport solutions for airports and urban networks, and aviation enhancements. Founded in 1865 and headquartered at 70 St Mary Axe in London, Costain delivers these services primarily to blue-chip public and private clients such as National Highways, HS2, Thames Water, United Utilities, Southern Water, bp, INEOS FPS, Sellafield Ltd, Cadent, and Heathrow, focusing on design, programme management, digital solutions, and asset optimization throughout project lifecycles. Recent developments include a December 2024 award of two major HS2 contracts valued at a minimum of £400 million for tunnel and lineside systems and £300 million in a joint venture with Siemens Mobility for high-voltage power supply; AMP8 water contract wins and extensions with Northumbrian Water, United Utilities, Southern Water, Severn Trent Water, and Thames Water through 2032; a three-year engineering contract with INEOS FPS at Kinneil Terminal; a technical advice framework with National Highways; design work for an underground hydrogen storage project and Europe's first advanced uranium fuels facility; commencement on CO2 gathering systems for the £4bn East Coast Cluster and hydrogen pipelines for bp's Net Zero Teesside; a three-year extension for Cadent's gas mains replacement; and an October 2025 contract worth up to £1 billion with Sellafield Ltd for utility refurbishments in decommissioning, alongside record forward work growth to £5.4 billion as of year-end 2024.

Company News

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