Company lists · Data refreshed November 2026

Top 25 Retrofitting consultants worldwide

Name: Retrofitting consultants worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 14,800 companies tracked

RevenueBase identified 14,800 company matches for retrofitting consultants worldwide as of November 2026 and tracks 135,947 professional contacts across them, including 44,098 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for retrofitting consultants worldwide, 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. Country and city lists for retrofitting consultants follow the table.

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

14,800Companies

135,947Contacts tracked

44,098Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest retrofitting consultants worldwide

Ranked by team size

Top 25 of 14,800 company matches for retrofitting consultants worldwide, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Hoare LEA	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	1,183 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
2	BTP Consultants	Exact match	Montigny-le-bretonneux, FranceHQ recorded Nov 6, 2026	201-500	1,170 contacts →
	Exact match “BTP Consultants est un bureau de ̂, et présent à l'échelle nationale depuis plus de.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	OLA	Exact match	Austin, TX, United StatesHQ recorded Nov 6, 2026	n/a	1,164 contacts →
	Exact match “OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	BPA	Exact match	Montréal, QC, CanadaHQ recorded Nov 6, 2026	1,001-5,000	965 contacts →
	Exact match “IMPACTFUL ENGINEERING At BPA, it’s simple: we are building experts.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Coffman Engineers	Exact match	Seattle, CO, United StatesHQ recorded Nov 6, 2026	501-1,000	919 contacts →
	Exact match “The right team is more than an advantage.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Concrejato Engenharia	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	888 contacts →
	Exact match “Criada na década de 1970, a Concrejato é especializada na execução de serviços técnicos de retrofit e restauro de edificações, recuperação e reforço estrutural, obras industriais…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Corpo DE Bombeiros	Exact match	BrazilHQ recorded Nov 6, 2026	1,001-5,000	866 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Syska Hennessy Group	Exact match	Raleigh, NC, United StatesHQ recorded Nov 6, 2026	501-1,000	857 contacts →
	Exact match “Consult Engineer Commission At Syska Hennessy Group, we create exceptional environments.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Smith Andersen	Exact match	Toronto, MB, CanadaHQ recorded Nov 6, 2026	501-1,000	730 contacts →
	Exact match “What does it take to be one of Canada’s most respected integrated engineering firms?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	ME Engineers	Exact match	Golden, TX, United StatesHQ recorded Nov 6, 2026	201-500	723 contacts →
	Exact match “ME Engineers has earned a reputation as a global leader in the design of innovative MEPT systems that bring to life the world's most innovative sports and entertainment venues.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	TTW	Exact match	North Sydney, AustraliaHQ recorded Nov 6, 2026	501-1,000	531 contacts →
	Exact match “Great engineering starts with great people.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Groupe Acceo BET Energie, Ascenseur, Environnement, AMO & MOE Spécialisées	Exact match	La Ciotat, FranceHQ recorded Nov 6, 2026	501-1,000	520 contacts →
	Exact match “ACCEO est un bureau d’études en bâtiment indépendant fondé en 2003 et spécialisé dans des domaines à forte technicité : Ascenseurs, Efficacité énergétique, Environnement, AMO et…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Jaros, Baum & Bolles Jb&b	Exact match	New York, MA, United StatesHQ recorded Nov 6, 2026	201-500	501 contacts →
	Exact match “Jaros, Baum & Bolles, Inc.(JB & B) is a leading consulting engineering firm specializing in mechanical, electrical, plumbing, and fire protection (MEP/FP) systems for complex…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	MBP Mcdonough Bolyard Peck	Exact match	Fairfax, VA, United StatesHQ recorded Nov 6, 2026	201-500	479 contacts →
	Exact match “MBP is a multi-disciplined consulting firm that provides a broad range of professional services designed to mitigate risk and optimize value within the built environment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Cosmos-Eng	Exact match	Cairo, EgyptHQ recorded Nov 6, 2026	201-500	478 contacts →
	Exact match “Introduction: COSMOS-E Engineers & Consultants is the leading company in multi-disciplinary Engineering and Consultancy Services in Egypt and the Middle-East.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Semac Construction LTD	Exact match	Gurgaon, IndiaHQ recorded Nov 6, 2026	51-200	439 contacts →
	Exact match “Semac was founded in 1969 as one of the first consultants in India to offer ASMEPF (Architectural, Structural, Mechanical, Electrical, Plumbing, Fire suppression, Air…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	ESA Engineering	Exact match	Sesto Fiorentino, ItalyHQ recorded Nov 6, 2026	201-500	414 contacts →
	Exact match “We are a multidisciplinary consulting firm with over 30 years of experience providing integrated engineering services internationally.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Shankar Electricals Services I Private Limited	Exact match	Bangalore, IndiaHQ recorded Nov 6, 2026	1,001-5,000	413 contacts →
	Exact match “We are the leading MEP Contractor & Consultant with extensive knowledge in the Projects and O&M Services, having executed several Projects for fortune 500 companies and providing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	INTEC	Exact match	Borlänge, SwedenHQ recorded Nov 6, 2026	501-1,000	395 contacts →
	Exact match “Our services cover every stage of a process or building's life cycle, from the initial idea and early stages through to design, management and maintenance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Glumac	Exact match	San Francisco, NV, United StatesHQ recorded Nov 6, 2026	201-500	387 contacts →
	Exact match “Glumac, a Tetra Tech Company, is a global leader in building engineering, committed to delivering a low carbon future for all.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	P2s	Exact match	Long Beach, CA, United StatesHQ recorded Nov 6, 2026	201-500	379 contacts →
	Exact match “P2S has brought forward-thinking, sustainable engineering solutions to the West Coast and beyond for over 35 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Next Engineering Consultants	Exact match	Dubai, United Arab EmiratesHQ recorded Nov 6, 2026	201-500	333 contacts →
	Exact match “In NEXT engineering consultants, we share knowledge and imagine new ways to solve the challenges of the built environment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	CTE	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	51-200	322 contacts →
	Exact match “CTE is a consulting company, which has 28 years of experience in the Construction Industry, offering clients consultancy across a wide range of service nable Projects and Green…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Cosentini Associates	Exact match	Nyc, NY, United StatesHQ recorded Nov 6, 2026	201-500	318 contacts →
	Exact match “Cosentini has a 70+ year history of engineering many of the world’s most iconic buildings.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Atelier TEN	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	313 contacts →
	Exact match “As environmental design consultants, building services engineers and lighting designers, we are committed to high performance and sustainable design within the built environment.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “retrofitting consultants”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 14,800 retrofitting consultants worldwide

See the full list, filter by size, metro and specialty, and access 44,098 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Retrofitting consultants worldwide at a glance

As of Nov 6, 2026

32.4%Verified-email coverage

9.2Average contacts per company

1-10Median size (employees)

1.3%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

9,200

11-50

4,314

51-200

884

201-500

142

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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.
Coverage: Every country. Country and city lists for retrofitting consultants are linked below.
What qualifies: Company records worldwide whose business descriptions match “retrofitting 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. 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 44,098 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.

Retrofitting consultants by location

74 lists · largest first

Every Retrofitting consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 “retrofitting consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many retrofitting consultants are there worldwide?

RevenueBase identified 14,800 company matches for retrofitting consultants worldwide 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?

Hoare LEA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most retrofitting consultants?

The United States leads with 2,266 companies, followed by France (1,328) and the United Kingdom (917). Every retrofitting consultants list by country and city is linked on this page.

Which city has the most retrofitting consultants?

London leads with 197 company records, followed by Sao Paulo (195) and Paris (131).

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 44,098 professional contacts with verified work emails tracked across these 14,800 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.

Ready to reach these companies? Verified emails and direct dials for all 14,800 retrofitting consultants worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.