Company lists · Data refreshed September 2026

Top 25 Hydropower consulting firms based in the United Kingdom

Name: Hydropower consulting firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 379 companies tracked

RevenueBase identified 379 hydropower consulting firms headquartered in the United Kingdom as of September 2026 and tracks 76,078 professional contacts across them, including 26,446 with verified work emails and 11,812 with mobile numbers. London is the largest hub.

This list covers hydropower consulting firms headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

379Companies

76,078Contacts tracked

26,446Verified emails

11,812Mobile numbers

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The 25 largest hydropower consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 379 hydropower consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names hydropower consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Faithful GouldIndirect evidence	London, United KingdomHQ checked Sep 3, 2026	1,001-5,000	1,205
	“Faithful+Gould is now AtkinsRéalis.” Source: company website · checked Sep 3, 2026
2	Ricardo PLCIndirect evidence	London, United KingdomHQ checked Sep 3, 2026	1,001-5,000	680
	“Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Source: company website · checked Sep 3, 2026
3	KBR GranhernePartial evidence	Leatherhead, United KingdomHQ checked Sep 3, 2026	501-1,000	656
	“KBR Consulting is one of the world's foremost engineering consultancies specializing in the hydrocarbon and energy industry.” Source: company website · checked Sep 3, 2026
4	Dalcour MaclarenIndirect evidence	Chesterton, United KingdomHQ checked Sep 3, 2026	501-1,000	583
	“Dalcour Maclaren: delivering land, stakeholder and environmental solutions.” Source: company website · checked Sep 3, 2026
5	Waterman GroupIndirect evidence	London, United KingdomHQ checked Sep 3, 2026	1,001-5,000	572
	“Waterman Group is a multidisciplinary consultancy providing sustainable solutions to meet the planning, engineering design and project delivery needs of the property…” Source: company website · checked Sep 3, 2026
6	FairhurstPartial evidence	Glasgow, United KingdomHQ checked Sep 3, 2026	201-500	446
	“Welcome to Fairhurst: Fairhurst is a Limited Liability Partnership (LLP) of Consulting Engineers practicing in the UK, employing circa 400 staff in 16 principal offices.” Source: company website · checked Sep 3, 2026
7	Fichtner Consulting Engineers LTDIndirect evidence	Stockport, United KingdomHQ checked Sep 3, 2026	51-200	418
	“Fichtner is one of the world's leading independent engineering consultancy firms.” Source: company website · checked Sep 3, 2026
8	The Erith GroupPartial evidence	London, United KingdomHQ checked Sep 3, 2026	501-1,000	215
	“Supported by a network of specialist consulting engineers, environmentalists and our own collective experience, our philosophy is simple: to provide a qualitative economic and…” Source: company website · checked Sep 3, 2026
9	Aqua ConsultantsIndirect evidence	Leeds, United KingdomHQ checked Sep 3, 2026	51-200	163
	“Aqua Consultants provide tailored environmental consultancy to broaden your thinking, lead transformation, and achieve successful outcomes.” Source: company website · checked Sep 3, 2026
10	The Sirius GroupIndirect evidence	Durham, United KingdomHQ checked Sep 3, 2026	201-500	156
	“End to End Service: From initial investigations and assessments to planning, design and engineering support, we give you a foundation of confidence for your site development…” Source: company website · checked Sep 3, 2026
11	Arthian LTDPartial evidence	Glasgow, United KingdomHQ checked Sep 3, 2026	201-500	152
	“Arthian has been established following a merger between Mabbett and IKM Consulting.” Source: company website · checked Sep 3, 2026
12	MackleyIndirect evidence	Small Dole, United KingdomHQ checked Sep 3, 2026	51-200	118
	“Mackley provides a comprehensive range of services from conception through construction to project delivery.” Source: company website · checked Sep 3, 2026
13	BrookbanksIndirect evidence	United KingdomHQ checked Sep 3, 2026	51-200	111
	“Project Consultant & Development Partner: Civil, Structural, Mechanical & Electrical Engineering Designs; Highways, Transportation & Environmental; Cost & Commercial & Development…” Source: company website · checked Sep 3, 2026
14	Hurley Palmer FlattIndirect evidence	London, United KingdomHQ checked Sep 3, 2026	201-500	91
	“In 2019, Hurley Palmer Flatt, the UK’s leading independent multidisciplinary engineering consultancy, joined global design firm HDR.” Source: company website · checked Sep 3, 2026
15	RichterIndirect evidence	Marlow, United KingdomHQ checked Sep 3, 2026	51-200	86
	“Engineering Value Together - from incubation, to project realisation.” Source: company website · checked Sep 3, 2026
16	FHP GroupIndirect evidence	London, United KingdomHQ checked Sep 3, 2026	51-200	85
	“FHP Group is a leading Mechanical, Electrical, Public Health, Energy and Sustainability engineering consultancy with over 50 years of experience!” Source: company website · checked Sep 3, 2026
17	Niras UKIndirect evidence	Ascot, United KingdomHQ checked Sep 3, 2026	201-500	80
	“NIRAS in the United Kingdom combines engineering, consultancy and project management expertise across process industries, marine environments, marine structures and international…” Source: company website · checked Sep 3, 2026
18	Premtech LTDIndirect evidence	Ashby-De-La-Zouch, United KingdomHQ checked Sep 3, 2026	51-200	74
	“Premtech is a dynamic company whose primary focus is to provide engineering, consultancy and design management services to all companies involved in the development and ownership…” Source: company website · checked Sep 3, 2026
19	Atmos Consulting LTDPartial evidence	Edinburgh, United KingdomHQ checked Sep 3, 2026	51-200	73
	“Atmos Consulting is a modern and dynamic environmental and planning consultancy uniquely structured to offer superior service to its clients by providing cost-effective, robust…” Source: company website · checked Sep 3, 2026
20	Adman GroupIndirect evidence	Omagh, United KingdomHQ checked Sep 3, 2026	51-200	72
	“The Adman group of companies is a leading provider of civil engineering and construction services with a proven track record of service delivery for both public and private sector…” Source: company website · checked Sep 3, 2026
21	EnvirocentreIndirect evidence	Glasgow, United KingdomHQ checked Sep 3, 2026	51-200	70
	“EnviroCentre is a solutions orientated consultancy that has a proven track record in providing innovative, effective and valuable advice.” Source: company website · checked Sep 3, 2026
22	Omnia ProjectsIndirect evidence	Northallerton, United KingdomHQ checked Sep 3, 2026	51-200	67
	“Omnia Projects are an Engineering Consultancy providing multidisciplinary expertise for energy projects providing a complete service from feasibility and concept development…” Source: company website · checked Sep 3, 2026
23	Kelvin Power Member Of Vinci EnergiesIndirect evidence	Leicester, United KingdomHQ checked Sep 3, 2026	51-200	59
	“Kelvin Power provides expert advice and design solutions to the global power industry and the renewable energy sector.” Source: company website · checked Sep 3, 2026
24	StopfordIndirect evidence	Knutsford, United KingdomHQ checked Sep 3, 2026	51-200	54
	“Stopford is an international multi-disciplinary consultancy, engineering design and project management services company founded in the UK in 1982.” Source: company website · checked Sep 3, 2026
25	Whitfield Consulting ServicesPartial evidence	Surbiton, United KingdomHQ checked Sep 3, 2026	51-200	43
	“At Whitfield Consulting Services we believe infrastructure requires more than just a one-off design.” Source: company website · checked Sep 3, 2026

Showing 25 of 379 hydropower consulting firms based in the United Kingdom

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Hydropower consulting firms based in the United Kingdom at a glance

As of Sep 3, 2026

1-10Median size (employees)

LondonLargest hub · 60 HQs

11,812Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

189

11-50

116

51-200

201-500

501-1,000

1,001-5,000

10001+

Verified emails by last verification

0–30

31–60

2,026

61–90

15,269

90–180

8,651

180+

500

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among hydropower consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “hydropower consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among hydropower consulting firms, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and an evidence rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 26,446 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 3, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Hydropower consulting firms by metro

Hydropower consulting firms in London60

Frequently asked

How many hydropower consulting firms are there based in the United Kingdom?

RevenueBase identified 379 hydropower consulting firms headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Faithful Gould, headquartered in London, tops this list with the largest team on record.

Which city has the most hydropower consulting firms?

London leads with 60 headquartered companies, followed by Glasgow (9) and Manchester (7).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 26,446 verified decision-maker contacts tracked across these 379 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 3, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.