Company lists · Data refreshed September 2026
Top 25 Hydro engineering consultants based in the United Kingdom
RevenueBase identified 585 hydro engineering consultants headquartered in the United Kingdom as of September 2026 and tracks 8,982 professional contacts across them, including 3,970 with verified work emails. London is the largest hub.
This list covers hydro engineering consultants 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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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.
The 25 largest hydro engineering consultants based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,103 contacts → | ||||
Strong evidence “We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 2 | 437 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 3 | 166 contacts → | ||||
Partial evidence “With over 40 years experience JNP Group deliver highly professional, integrated efficient design and consultancy solutions from inception to completion, irrespective of project…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 4 | 150 contacts → | ||||
Partial evidence “Rendel celebrated its 185th Anniversary in 2024, making us one of the oldest civil and structural engineering companies in the UK.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 5 | 146 contacts → | ||||
Indirect evidence “Harley Haddow are Civil, Structural, Mechanical, Electrical, Building Performance & Sustainability and Geotechnical Consulting Engineers.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 6 | 136 contacts → | ||||
Indirect evidence “We’re envolve, specialist civil engineers.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 7 | 116 contacts → | ||||
Indirect evidence “Mackley provides a comprehensive range of services from conception through construction to project delivery.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 8 | 113 contacts → | ||||
Indirect evidence “CampbellReith is an independent firm of consulting engineers providing structural, civil, geotechnical, land quality, development planning and transport planning services.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 9 | 109 contacts → | ||||
Indirect evidence “Land + Water is more than just a dredging company.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 10 | 104 contacts → | ||||
Indirect evidence “Gilkes delivers innovative, single source solutions to the Small Hydropower and High Horsepower Engine markets.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 11 | 99 contacts → | ||||
Partial evidence “ECS Engineering Services are a diverse mechanical, electrical, and process engineering contractor with over 35 years of experience.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 12 | 96 contacts → | ||||
Partial evidence “Founded in 2005, Ardent Consulting Engineers provide transport and infrastructure planning and engineering advice to the property and land development industry.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 13 | 96 contacts → | ||||
Indirect evidence “Crouch Waterfall is an established firm of Civil, Structural and Geotechnical Consulting Engineers with extensive experience of Railways, Buildings, Roads, Bridges and Waterways.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 14 | 93 contacts → | ||||
Partial evidence “Founded in 1953, Doran Consulting offers a wealth of expertise and experience in the creation of economic, innovative and sustainable engineering solutions.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 15 | 89 contacts → | ||||
Indirect evidence “Narro is a team of Consulting Structural & Civil Engineers with offices in Edinburgh, Glasgow, Stirling, Inverness, Aberdeen, Newcastle, and London.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 16 | 89 contacts → | ||||
Strong evidence “Simpson TWS is a successful civil and structural engineering consultancy.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 17 | 86 contacts → | ||||
Strong evidence “FHP Group is a leading Mechanical, Electrical, Public Health, Energy and Sustainability engineering consultancy with over 50 years of experience!” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 18 | 85 contacts → | ||||
Partial evidence “Engineering Value Together - from incubation, to project realisation.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 19 | 77 contacts → | ||||
Indirect evidence “Will Rudd are Consulting Civil & Structural Engineers with an excellent track record in delivering a quality product.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 20 | 74 contacts → | ||||
Strong evidence “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: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 21 | 73 contacts → | ||||
Strong evidence “Metis is an Employee-Owned civil and environmental engineering consultancy, with offices in London and Manchester.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 22 | 60 contacts → | ||||
Partial evidence “From it’s inception in November 1994, Claret Civil Engineering has expanded to become a leading Tier 1 and Tier 2 contractor operating across a range of sectors including clean…” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 23 | 60 contacts → | ||||
Partial evidence “We have been delivering innovative, cost-effective, sustainable civil engineering services to our customers since 1977.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 24 | 59 contacts → | ||||
Indirect evidence “Woolgar Hunter is a forward thinking firm of consulting civil and structural engineers with a range of high profile projects and clients both in the UK and further afield.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
| 25 | 59 contacts → | ||||
Strong evidence “Waterco Datrys is a leading consultancy in water and environmental engineering, formed through the merger of Waterco and Datrys in 2024.” Source: RevenueBase Database · checked Sep 16, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: hydro engineering consultants. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names hydro engineering consultants.
- Partial evidence
- Its own public description names part of hydro engineering consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name hydro engineering consultants. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 585 hydro engineering consultants based in the United Kingdom
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 3,970 reachable decision-makers.
Free signup · no credit card
Hydro engineering consultants based in the United Kingdom at a glance
As of Sep 16, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 585 companies.
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 hydro engineering consultants, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search 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 Smart Search, 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 “hydro engineering consultants”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names hydro engineering consultants), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among hydro engineering consultants, 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 its RevenueBase Smart Search 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, 3,970 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 16, 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.
Hydro engineering consultants by metro
- Hydro engineering consultants in London63
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names hydro engineering consultants, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many hydro engineering consultants are there based in the United Kingdom?
RevenueBase identified 585 hydro engineering consultants 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?
Hoare LEA, headquartered in London, tops this list with the largest team on record.
Which city has the most hydro engineering consultants?
London leads with 63 headquartered companies, followed by Bristol (15) and Manchester (12).
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 3,970 verified decision-maker contacts tracked across these 585 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 16, 2026.
Ready to reach these companies? Verified emails and direct dials for all 585 hydro engineering consultants based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Hydro engineering consultants by geography
- Hydro engineering consultants based in Brisbane, Australia
- Hydro engineering consultants based in Melbourne, Australia
- Hydro engineering consultants based in Perth, Australia
- Hydro engineering consultants based in Sydney, Australia
- Hydro engineering consultants based in Belo Horizonte, Brazil
- Hydro engineering consultants based in Curitiba, Brazil
- Hydro engineering consultants based in Porto Alegre, Brazil
- Hydro engineering consultants based in Rio De Janeiro, Brazil
- Hydro engineering consultants based in Sao Paulo, Brazil
- Hydro engineering consultants based in Calgary, Canada
- Hydro engineering consultants based in Edmonton, Canada
- Hydro engineering consultants based in Toronto, Canada
Browse the directory
Browse: Companies home · All United Kingdom lists · All Hydro engineering consultants lists · New lists
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 Smart Search, 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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Hydro engineering consultants based in Brisbane, Australia
- Hydro engineering consultants based in Melbourne, Australia
- Hydro engineering consultants based in Perth, Australia
- Hydro engineering consultants based in Sydney, Australia
- Hydro engineering consultants based in Belo Horizonte, Brazil
- Hydro engineering consultants based in Curitiba, Brazil