Company lists · Data refreshed November 2026

Top 24 Retrofit engineering consultants based in the United Kingdom

RevenueBase identified 1,482 company matches for retrofit engineering consultants associated with the United Kingdom as of November 2026 and tracks 25,274 professional contacts across them, including 12,392 with verified work emails. London is the largest hub.

This list covers company matches for retrofit engineering consultants associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 6, 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 RevenueBase SmartSearch · Exact Recorded Nov 6, 2026 How this list was built
1,482Companies
25,274Contacts tracked
12,392Verified emails
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The 24 largest retrofit engineering consultants based in the United Kingdom

Ranked by team size
Top 24 of 1,482 company matches for retrofit engineering consultants based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchWoodstock, United KingdomHQ recorded Nov 6, 20261,001-5,0001,628 contacts →

Exact match

“Ridge is a built environment consultancy, helping clients turn complex briefs into buildings and infrastructure that perform in the real world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,0001,183 contacts →

Exact match

“We are an award-winning engineering consultancy with a creative team of engineers, designers, and technical specialists.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Nov 6, 20261,001-5,0001,172 contacts →

Exact match

“Faithful+Gould is now AtkinsRéalis.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchWarrington, United KingdomHQ recorded Nov 6, 20261,001-5,000701 contacts →

Exact match

“We are BGEN- part of M Group.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchGlasgow, United KingdomHQ recorded Nov 6, 2026201-500467 contacts →

Exact match

“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.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchLiverpool, United KingdomHQ recorded Nov 6, 2026201-500381 contacts →

Exact match

“At Curtins we believe that the true value of our work is defined by the difference for good we make in the lives of real people.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchEltham, United KingdomHQ recorded Nov 6, 2026201-500329 contacts →

Exact match

“Baily Garner is a leading multidisciplinary construction consultancy on a mission to positively impact people's lives.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Nov 6, 2026501-1,000249 contacts →

Exact match

“Supported by a network of specialist consulting engineers, environmentalists and our own collective experience, our philosophy is simple: to provide a qualitative economic and…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchStevenage, United KingdomHQ recorded Nov 6, 2026201-500241 contacts →

Exact match

“JCA is a multi-faceted engineering services and construction business.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Nov 6, 2026201-500234 contacts →

Exact match

“We are interdisciplinary consultants, engineers and advisors, applying progressive design thinking to shape the environments we live in.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchBirmingham, United KingdomHQ recorded Nov 6, 2026501-1,000226 contacts →

Exact match

“At Actemium UK, we are expert electrical, automation and mechanical engineers delivering bespoke engineering solutions across industry, infrastructure and beyond.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchBeckenham, United KingdomHQ recorded Nov 6, 202651-200187 contacts →

Exact match

“At Potter Raper, we work with you to create buildings and infrastructure that enhances lives.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200180 contacts →

Exact match

“Consulting Engineers Price & Myers is a structural and civil engineering practice, established by Sam Price and Robert Myers in 1978.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchEdinburgh, United KingdomHQ recorded Nov 6, 202651-200167 contacts →

Exact match

“Harley Haddow are Civil, Structural, Mechanical, Electrical, Building Performance & Sustainability and Geotechnical Consulting Engineers.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchManchester, United KingdomHQ recorded Nov 6, 202651-200165 contacts →

Exact match

“We’re a specialist engineering consultancy working nationally to deliver industry-leading engineering services and creative engineering designs that work for today and for future…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200159 contacts →

Exact match

“We believe in a bigger and better idea of engineering.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchWolverhampton, United KingdomHQ recorded Nov 6, 202651-200138 contacts →

Exact match

“Wintech are a building engineering consultancy service with a strong design heritage, working on projects ranging from new build, sustainable developments to complex building…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchUnited KingdomHQ recorded Nov 6, 202651-200136 contacts →

Exact match

“Project Consultant & Development Partner: Civil, Structural, Mechanical & Electrical Engineering Designs; Highways, Transportation & Environmental; Cost & Commercial & Development…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200129 contacts →

Exact match

“Meinhardt (UK) is a leading international multidisciplinary engineering consultancy.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200127 contacts →

Exact match

“CampbellReith is an independent firm of consulting engineers providing structural, civil, geotechnical, land quality, development planning and transport planning services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchHull, United KingdomHQ recorded Nov 6, 202651-200113 contacts →

Exact match

“Established in 1968 as a firm of Consulting Civil & Structural Engineers Alan Wood & Partners now have 7 offices in the UK.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Nov 6, 202651-200113 contacts →

Exact match

“Walsh is a B Corp Certified structural, civil and geotechnical engineering consultancy specialising in complex developments on constrained urban sites.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchGlasgow, United KingdomHQ recorded Nov 6, 202651-200103 contacts →

Exact match

“We are an independent Building Services Consultancy providing national coverage.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSolihull, United KingdomHQ recorded Nov 6, 2026501-1,000101 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 24 of 1,482 retrofit engineering consultants based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 12,392 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Retrofit engineering consultants based in the United Kingdom at a glance

As of Nov 6, 2026
49.0%Verified-email coverage
17.1Average contacts per company
1-10Median size (employees)
20.4%Largest-city concentration · London
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
867
11-50
448
51-200
103
201-500
14
501-1,000
7
1,001-5,000
4
10001+
2

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 1,482 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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
Company records associated with the United Kingdom whose business descriptions match “retrofit engineering consultants” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 12,392 professional contacts with verified work emails across the full matched dataset. 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 November 6, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “retrofit engineering consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many retrofit engineering consultants are there based in the United Kingdom?

RevenueBase identified 1,482 company matches for retrofit engineering consultants associated with the United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Ridge And Partners LLP tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most retrofit engineering consultants?

London leads with 303 company records, followed by Birmingham (40) and Bristol (33).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 12,392 professional contacts with verified work emails tracked across these 1,482 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 6, 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.