Company lists · Data refreshed September 2026

Top 24 Hydropower engineering consultancy companies based in the United Kingdom

Name: Hydropower engineering consultancy companies 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 524 companies tracked

RevenueBase identified 524 hydropower engineering consultancy companies headquartered in the United Kingdom as of September 2026 and tracks 72,037 professional contacts across them, including 24,907 with verified work emails and 10,801 with mobile numbers. London is the largest hub.

This list covers hydropower engineering consultancy companies 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

524Companies

72,037Contacts tracked

24,907Verified emails

10,801Mobile numbers

Unlock all 524 companies Free signup · no credit card · 500 free credits

The 24 largest hydropower engineering consultancy companies based in the United Kingdom

Ranked by team size

Top 24 of 524 hydropower engineering consultancy companies 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 engineering consultancy companies: 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	KBR GranherneStrong 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
2	Waterman GroupStrong 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
3	FairhurstIndirect 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
4	Fichtner Consulting Engineers LTDStrong 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
5	JNP GroupPartial evidence	Amersham, United KingdomHQ checked Sep 3, 2026	51-200	165
	“With over 40 years experience JNP Group deliver highly professional, integrated efficient design and consultancy solutions from inception to completion, irrespective of project…” Source: company website · checked Sep 3, 2026
6	The Sirius GroupPartial 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
7	Longitude EngineeringStrong evidence	London, United KingdomHQ checked Sep 3, 2026	51-200	138
	“The Engineering Consultants.” Source: company website · checked Sep 3, 2026
8	ApolloStrong evidence	Aberdeen, United KingdomHQ checked Sep 3, 2026	51-200	129
	“Apollo is a leading engineering and advisory consultancy working across sustainable infrastructure, marine energies, oil and gas, technical placements and digital solutions.” Source: company website · checked Sep 3, 2026
9	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
10	EverozePartial evidence	Bristol, United KingdomHQ checked Sep 3, 2026	51-200	100
	“Everoze is an employee-owned renewables, green hydrogen and storage consultancy.” Source: company website · checked Sep 3, 2026
11	Doran ConsultingPartial evidence	Belfast, United KingdomHQ checked Sep 3, 2026	51-200	91
	“Founded in 1953, Doran Consulting offers a wealth of expertise and experience in the creation of economic, innovative and sustainable engineering solutions.” Source: company website · checked Sep 3, 2026
12	RichterPartial 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
13	Green CAT Renewables LTDIndirect evidence	Biggar, United KingdomHQ checked Sep 3, 2026	51-200	80
	“Green Cat Renewables is a dynamic, innovative, and growing company that provides tailored support to the needs of the individual developer throughout the entire development…” Source: company website · checked Sep 3, 2026
14	Premtech LTDStrong 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
15	Adman GroupPartial 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
16	Omnia ProjectsStrong 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
17	OSL GlobalStrong evidence	Crewe, United KingdomHQ checked Sep 3, 2026	51-200	62
	“OSL Global delivers multidisciplinary engineering and consultancy solutions across rail systems, power & energy, water & waste and advanced technology sectors.” Source: company website · checked Sep 3, 2026
18	Qoda ConsultingIndirect evidence	London, United KingdomHQ checked Sep 3, 2026	51-200	60
	“Welcome to QODA: working hard to meet the needs of our clients and all those who use the buildings we help to create.” Source: company website · checked Sep 3, 2026
19	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
20	StopfordStrong 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
21	Qualter, Hall & CO LimitedPartial evidence	Barnsley, United KingdomHQ checked Sep 3, 2026	51-200	52
	“Founded in 1860, Qualter Hall owns a continuous history of engineering excellence in the UK and internationally.” Source: company website · checked Sep 3, 2026
22	Whitfield Consulting ServicesIndirect 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
23	Sari Consulting LTDStrong evidence	London, United KingdomHQ checked Sep 3, 2026	11-50	41
	“A dynamic international engineering consultancy company providing project management, technical assistance, capacity-building and design services for the development of…” Source: company website · checked Sep 3, 2026
24	Tadek Ocean EngineeringStrong evidence	Woking, United KingdomHQ checked Sep 3, 2026	11-50	36
	“Tadek Ocean Engineering provides dynamic consultancy and project delivery resources for marine, offshore and subsea projects.” Source: company website · checked Sep 3, 2026

Showing 24 of 524 hydropower engineering consultancy companies based in the United Kingdom

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Hydropower engineering consultancy companies based in the United Kingdom at a glance

As of Sep 3, 2026

1-10Median size (employees)

LondonLargest hub · 70 HQs

10,801Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

312

11-50

146

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Verified emails by last verification

0–30

31–60

1,896

61–90

14,378

90–180

8,156

180+

477

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 engineering consultancy companies, 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 engineering consultancy companies”. 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 engineering consultancy companies, 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, 24,907 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 engineering consultancy companies by metro

Hydropower engineering consultancy companies in London70

Frequently asked

How many hydropower engineering consultancy companies are there based in the United Kingdom?

RevenueBase identified 524 hydropower engineering consultancy companies 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?

KBR Granherne, headquartered in Leatherhead, tops this list with the largest team on record.

Which city has the most hydropower engineering consultancy companies?

London leads with 70 headquartered companies, followed by Bristol (15) and Aberdeen (9).

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 24,907 verified decision-maker contacts tracked across these 524 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.