Company lists · Data refreshed November 2026
Top 25 Retro-commissioning companies worldwide
RevenueBase identified 1,917 company matches for retro-commissioning companies worldwide as of November 2026 and tracks 26,567 professional contacts across them, including 9,065 with verified work emails. The United States is the largest market and New York the largest hub.
This list covers company matches for retro-commissioning companies 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 retro-commissioning companies 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.
The 25 largest retro-commissioning companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 678 contacts → | ||||
Exact match “Electric Power Systems is an independent electrical testing & engineering organization.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 578 contacts → | ||||
Exact match “AM Technical Solutions (AM), founded in 1994, is a proven and licensed architect, engineering, construction and commissioning firm.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 475 contacts → | ||||
Exact match “CSI Engineering serves as an engineering-led construction management partner for complex building projects, coordinating design consultants, contractors, and specialist trades…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 411 contacts → | ||||
Exact match “Founded in 2005, the vision behind Primary Integration (PI) was to build the most elite mission critical commissioning/data center commissioning and operational risk management…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 398 contacts → | ||||
Exact match “Commtech Asia is a market-leading, independent building commissioning consultant.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 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 | |||||
| 7 | 368 contacts → | ||||
Exact match “The National Energy Services Company (TARSHID) is a national company wholly owned by the Public Investment Fund (PIF).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 343 contacts → | ||||
Exact match “Sunbelt Controls is a leading full-service building automation contractor for new construction and retrofit projects in the Western United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 330 contacts → | ||||
Exact match “Founded to meet the needs for professional engineering services for its clients and to advance the quality of the constructed environment, EES is a licensed and certified firm…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 328 contacts → | ||||
Exact match “Here at Conco, we are always looking for A Better Way.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 296 contacts → | ||||
Exact match “The Hill Group is a Chicago-based mechanical contractor specializing in HVAC, plumbing, fire protection, testing/balancing, and commissioning.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 270 contacts → | ||||
Exact match “In business since 1971, Electrical Reliability Services, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 251 contacts → | ||||
Exact match “At Ecosystem, we believe in building meaningful relationships with both our clients and employees.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 232 contacts → | ||||
Exact match “Tolin Mechanical is a Leading Energy & Commercial HVAC Services Company.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 232 contacts → | ||||
Exact match “Zodiac, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 223 contacts → | ||||
Exact match “FourQuest Energy is a global leader in pre-commissioning, commissioning, and pipeline services for the energy industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 218 contacts → | ||||
Exact match “Greenfoot Energy Solutions was established in 2014 by a group of energy experts dedicated to improving energy efficiency in Atlantic Canada.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 214 contacts → | ||||
Exact match “http://tpiengineering.com/” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 203 contacts → | ||||
Exact match “Bright Power is a leading provider of energy efficiency and decarbonization solutions for the real estate industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 188 contacts → | ||||
Exact match “Robert Derector Associates is a full service engineering firm with a local feel and a global reach.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 181 contacts → | ||||
Exact match “At Hudson Technologies, we focus our full attention on refrigerants and how they impact chiller performance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 176 contacts → | ||||
Exact match “Rubicon Technical Services (RTS) offers innovative solutions for commissioning, testing, optimizing, operating, and maintaining critical facilities that depend on electrical…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 175 contacts → | ||||
Exact match “Headquartered in Harrisburg, Pennsylvania, McClure Company is one of the mid-Atlantic's largest, fully integrated mechanical construction, engineering, maintenance and energy…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 172 contacts → | ||||
Exact match “Agtherm est une PME indépendante dont l'activité dans le domaine du génie climatique et de la performance énergétique, vous assure la sécurité et la qualité de ses interventions…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 170 contacts → | ||||
Exact match “Recognised by the Financial Times as one of Europe's top 500 fastest-growing companies for three years running, Global Commissioning is the leading authority in data centre…” 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 “retro-commissioning companies”. 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 1,917 retro-commissioning companies worldwide
See the full list, filter by size, metro and specialty, and access 9,065 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Retro-commissioning companies worldwide at a glance
As of Nov 6, 2026Companies by employee count
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 retro-commissioning companies are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “retro-commissioning companies” 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 9,065 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.
Retro-commissioning companies by location
8 lists · largest firstEvery Retro-commissioning companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Retro-commissioning companies based in the United States785
- Retro-commissioning companies based in the United Kingdom138
- Retro-commissioning companies based in France125
- Retro-commissioning companies based in Canada115
- Retro-commissioning companies based in Australia44
- Retro-commissioning companies based in Italy37
- Retro-commissioning companies based in the United Arab Emirates33
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 “retro-commissioning companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many retro-commissioning companies are there worldwide?
RevenueBase identified 1,917 company matches for retro-commissioning companies 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?
Electric Power Systems tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most retro-commissioning companies?
The United States leads with 785 companies, followed by the United Kingdom (138) and France (125). Every retro-commissioning companies list by country and city is linked on this page.
Which city has the most retro-commissioning companies?
New York leads with 32 company records, followed by Dubai (19) and Denver (16).
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 9,065 professional contacts with verified work emails tracked across these 1,917 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 1,917 retro-commissioning companies worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 retro-commissioning companies worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 1,917 matching company records for retro-commissioning companies worldwide, with 26,567 tracked contacts and 9,065 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 retro-commissioning companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Electric Power Systemsvoltyx.comHQ: Maryland Heights, MI, United StatesReported employees: 501-1,000 | Maryland Heights, MI, United States | 501-1,000 | Exact match | 678 contacts → |
“Electric Power Systems is an independent electrical testing & engineering organization.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  AM Technical Solutions, INCamts.comHQ: Austin, OR, United StatesReported employees: 1,001-5,000 | Austin, OR, United States | 1,001-5,000 | Exact match | 578 contacts → |
“AM Technical Solutions (AM), founded in 1994, is a proven and licensed architect, engineering, construction and commissioning firm.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  CSI Globalcsicx.comHQ: Dubai, United Arab EmiratesReported employees: 501-1,000 | Dubai, United Arab Emirates | 501-1,000 | Exact match | 475 contacts → |
“CSI Engineering serves as an engineering-led construction management partner for complex building projects, coordinating design consultants, contractors, and specialist trades…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Bureau Veritas Primary Integrationprimaryintegration.com HQ: Mclean, VA, United StatesReported employees: 201-500 | Mclean, VA, United States | 201-500 | Exact match | 411 contacts → |
“Founded in 2005, the vision behind Primary Integration (PI) was to build the most elite mission critical commissioning/data center commissioning and operational risk management…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Commtech Asiacommtechasia.comHQ: Tokyo, Hong KongReported employees: 201-500 | Tokyo, Hong Kong | 201-500 | Exact match | 398 contacts → |
“Commtech Asia is a market-leading, independent building commissioning consultant.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  P2sp2sinc.comHQ: Long Beach, CA, United StatesReported employees: 201-500 | Long Beach, CA, United States | 201-500 | Exact match | 379 contacts → |
“P2S has brought forward-thinking, sustainable engineering solutions to the West Coast and beyond for over 35 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  ترشيد Tarshidtarshid.com.saHQ: Riyadh, Saudi ArabiaReported employees: 201-500 | Riyadh, Saudi Arabia | 201-500 | Exact match | 368 contacts → |
“The National Energy Services Company (TARSHID) is a national company wholly owned by the Public Investment Fund (PIF).” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Sunbelt Controlssunbeltcontrols.comHQ: Pleasanton, WA, United StatesReported employees: 201-500 | Pleasanton, WA, United States | 201-500 | Exact match | 343 contacts → |
“Sunbelt Controls is a leading full-service building automation contractor for new construction and retrofit projects in the Western United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Evolution Engineering Services - EESees-int.comHQ: Riyadh, Saudi ArabiaReported employees: 201-500 | Riyadh, Saudi Arabia | 201-500 | Exact match | 330 contacts → |
“Founded to meet the needs for professional engineering services for its clients and to advance the quality of the constructed environment, EES is a licensed and certified firm…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Conco Services LLCconco.netHQ: Verona, TX, United StatesReported employees: 201-500 | Verona, TX, United States | 201-500 | Exact match | 328 contacts → |
“Here at Conco, we are always looking for A Better Way.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  The Hill Grouphillgrp.comHQ: Franklin Park, IN, United StatesReported employees: 501-1,000 | Franklin Park, IN, United States | 501-1,000 | Exact match | 296 contacts → |
“The Hill Group is a Chicago-based mechanical contractor specializing in HVAC, plumbing, fire protection, testing/balancing, and commissioning.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Electrical Reliability Services, INCers.vertiv.comHQ: Westerville, SC, United StatesReported employees: 201-500 | Westerville, SC, United States | 201-500 | Exact match | 270 contacts → |
“In business since 1971, Electrical Reliability Services, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Ecosystemecosystem-energy.comHQ: Québec, NY, CanadaReported employees: 201-500 | Québec, NY, Canada | 201-500 | Exact match | 251 contacts → |
“At Ecosystem, we believe in building meaningful relationships with both our clients and employees.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Tolin Mechanical Systemstolin.comHQ: Denver, CO, United StatesReported employees: 201-500 | Denver, CO, United States | 201-500 | Exact match | 232 contacts → |
“Tolin Mechanical is a Leading Energy & Commercial HVAC Services Company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Zodiaczodinc.comHQ: St. Louis, MO, United StatesReported employees: Not recorded | St. Louis, MO, United States | Not recorded | Exact match | 232 contacts → |
“Zodiac, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Fourquest Energyfourquest.comHQ: Edmonton, TX, CanadaReported employees: 201-500 | Edmonton, TX, Canada | 201-500 | Exact match | 223 contacts → |
“FourQuest Energy is a global leader in pre-commissioning, commissioning, and pipeline services for the energy industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Greenfoot Energy Solutionsgreenfootenergy.caHQ: Moncton, BC, CanadaReported employees: 501-1,000 | Moncton, BC, Canada | 501-1,000 | Exact match | 218 contacts → |
“Greenfoot Energy Solutions was established in 2014 by a group of energy experts dedicated to improving energy efficiency in Atlantic Canada.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | TPItpiengineering.com HQ: United StatesReported employees: Not recorded | United States | Not recorded | Exact match | 214 contacts → |
“http://tpiengineering.com/” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Bright Powerbrightpower.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 203 contacts → |
“Bright Power is a leading provider of energy efficiency and decarbonization solutions for the real estate industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Robert Derector Associatesderector.comHQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 188 contacts → |
“Robert Derector Associates is a full service engineering firm with a local feel and a global reach.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Hudson Technologieshudsontech.comHQ: Woodcliff Lake, NJ, United StatesReported employees: 201-500 | Woodcliff Lake, NJ, United States | 201-500 | Exact match | 181 contacts → |
“At Hudson Technologies, we focus our full attention on refrigerants and how they impact chiller performance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Rubicon Technical Services - RTSrubicontechservices.comHQ: Kennesaw, NJ, United StatesReported employees: 51-200 | Kennesaw, NJ, United States | 51-200 | Exact match | 176 contacts → |
“Rubicon Technical Services (RTS) offers innovative solutions for commissioning, testing, optimizing, operating, and maintaining critical facilities that depend on electrical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Mcclure Companymcclureco.comHQ: Harrisburg, PA, United StatesReported employees: 201-500 | Harrisburg, PA, United States | 201-500 | Exact match | 175 contacts → |
“Headquartered in Harrisburg, Pennsylvania, McClure Company is one of the mid-Atlantic's largest, fully integrated mechanical construction, engineering, maintenance and energy…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Agthermagtherm.comHQ: Colomiers, FranceReported employees: 51-200 | Colomiers, France | 51-200 | Exact match | 172 contacts → |
“Agtherm est une PME indépendante dont l'activité dans le domaine du génie climatique et de la performance énergétique, vous assure la sécurité et la qualité de ses interventions…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Global Commissioningglobal-cxm.comHQ: Whitstable, United KingdomReported employees: 51-200 | Whitstable, United Kingdom | 51-200 | Exact match | 170 contacts → |
“Recognised by the Financial Times as one of Europe's top 500 fastest-growing companies for three years running, Global Commissioning is the leading authority in data centre…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 1,917 company matches
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Retro-commissioning companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,902 records in the displayed employee bands.
15 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,917 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Retro-commissioning companies by location
8 lists · largest firstEvery Retro-commissioning companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Retro-commissioning companies based in the United States785
- Retro-commissioning companies based in the United Kingdom138
- Retro-commissioning companies based in France125
- Retro-commissioning companies based in Canada115
- Retro-commissioning companies based in Australia44
- Retro-commissioning companies based in Italy37
- Retro-commissioning companies based in the United Arab Emirates33
Cities
Questions about this company list
What does Exact match mean for retro-commissioning companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many retro-commissioning companies did RevenueBase find worldwide?
The saved snapshot records 1,917 matching company records, 26,567 tracked contacts and 9,065 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 retro-commissioning companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/retro-commissioning-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 retro-commissioning companies worldwide
RevenueBase records 1,917 matching company records for retro-commissioning companies worldwide, with 26,567 tracked contacts and 9,065 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 retro-commissioning companies worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Electric Power Systemsvoltyx.com HQ: Maryland Heights, MI, United StatesReported employees: 501-1,000 | Maryland Heights, MI, United States | 501-1,000 | Exact match | 678 contacts → |
“Electric Power Systems is an independent electrical testing & engineering organization.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | AM Technical Solutions, INCamts.com HQ: Austin, OR, United StatesReported employees: 1,001-5,000 | Austin, OR, United States | 1,001-5,000 | Exact match | 578 contacts → |
“AM Technical Solutions (AM), founded in 1994, is a proven and licensed architect, engineering, construction and commissioning firm.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | CSI Globalcsicx.com HQ: Dubai, United Arab EmiratesReported employees: 501-1,000 | Dubai, United Arab Emirates | 501-1,000 | Exact match | 475 contacts → |
“CSI Engineering serves as an engineering-led construction management partner for complex building projects, coordinating design consultants, contractors, and specialist trades…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Bureau Veritas Primary Integrationprimaryintegration.com HQ: Mclean, VA, United StatesReported employees: 201-500 | Mclean, VA, United States | 201-500 | Exact match | 411 contacts → |
“Founded in 2005, the vision behind Primary Integration (PI) was to build the most elite mission critical commissioning/data center commissioning and operational risk management…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Commtech Asiacommtechasia.com HQ: Tokyo, Hong KongReported employees: 201-500 | Tokyo, Hong Kong | 201-500 | Exact match | 398 contacts → |
“Commtech Asia is a market-leading, independent building commissioning consultant.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | P2sp2sinc.com HQ: Long Beach, CA, United StatesReported employees: 201-500 | Long Beach, CA, United States | 201-500 | Exact match | 379 contacts → |
“P2S has brought forward-thinking, sustainable engineering solutions to the West Coast and beyond for over 35 years.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | ترشيد Tarshidtarshid.com.sa HQ: Riyadh, Saudi ArabiaReported employees: 201-500 | Riyadh, Saudi Arabia | 201-500 | Exact match | 368 contacts → |
“The National Energy Services Company (TARSHID) is a national company wholly owned by the Public Investment Fund (PIF).” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Sunbelt Controlssunbeltcontrols.com HQ: Pleasanton, WA, United StatesReported employees: 201-500 | Pleasanton, WA, United States | 201-500 | Exact match | 343 contacts → |
“Sunbelt Controls is a leading full-service building automation contractor for new construction and retrofit projects in the Western United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Evolution Engineering Services - EESees-int.com HQ: Riyadh, Saudi ArabiaReported employees: 201-500 | Riyadh, Saudi Arabia | 201-500 | Exact match | 330 contacts → |
“Founded to meet the needs for professional engineering services for its clients and to advance the quality of the constructed environment, EES is a licensed and certified firm…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Conco Services LLCconco.net HQ: Verona, TX, United StatesReported employees: 201-500 | Verona, TX, United States | 201-500 | Exact match | 328 contacts → |
“Here at Conco, we are always looking for A Better Way.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | The Hill Grouphillgrp.com HQ: Franklin Park, IN, United StatesReported employees: 501-1,000 | Franklin Park, IN, United States | 501-1,000 | Exact match | 296 contacts → |
“The Hill Group is a Chicago-based mechanical contractor specializing in HVAC, plumbing, fire protection, testing/balancing, and commissioning.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Electrical Reliability Services, INCers.vertiv.com HQ: Westerville, SC, United StatesReported employees: 201-500 | Westerville, SC, United States | 201-500 | Exact match | 270 contacts → |
“In business since 1971, Electrical Reliability Services, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Ecosystemecosystem-energy.com HQ: Québec, NY, CanadaReported employees: 201-500 | Québec, NY, Canada | 201-500 | Exact match | 251 contacts → |
“At Ecosystem, we believe in building meaningful relationships with both our clients and employees.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Tolin Mechanical Systemstolin.com HQ: Denver, CO, United StatesReported employees: 201-500 | Denver, CO, United States | 201-500 | Exact match | 232 contacts → |
“Tolin Mechanical is a Leading Energy & Commercial HVAC Services Company.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Zodiaczodinc.com HQ: St. Louis, MO, United StatesReported employees: Not recorded | St. Louis, MO, United States | Not recorded | Exact match | 232 contacts → |
“Zodiac, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Fourquest Energyfourquest.com HQ: Edmonton, TX, CanadaReported employees: 201-500 | Edmonton, TX, Canada | 201-500 | Exact match | 223 contacts → |
“FourQuest Energy is a global leader in pre-commissioning, commissioning, and pipeline services for the energy industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Greenfoot Energy Solutionsgreenfootenergy.ca HQ: Moncton, BC, CanadaReported employees: 501-1,000 | Moncton, BC, Canada | 501-1,000 | Exact match | 218 contacts → |
“Greenfoot Energy Solutions was established in 2014 by a group of energy experts dedicated to improving energy efficiency in Atlantic Canada.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | TPItpiengineering.com HQ: United StatesReported employees: Not recorded | United States | Not recorded | Exact match | 214 contacts → |
“http://tpiengineering.com/” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Bright Powerbrightpower.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 203 contacts → |
“Bright Power is a leading provider of energy efficiency and decarbonization solutions for the real estate industry.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Robert Derector Associatesderector.com HQ: New York, NY, United StatesReported employees: 51-200 | New York, NY, United States | 51-200 | Exact match | 188 contacts → |
“Robert Derector Associates is a full service engineering firm with a local feel and a global reach.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Hudson Technologieshudsontech.com HQ: Woodcliff Lake, NJ, United StatesReported employees: 201-500 | Woodcliff Lake, NJ, United States | 201-500 | Exact match | 181 contacts → |
“At Hudson Technologies, we focus our full attention on refrigerants and how they impact chiller performance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Rubicon Technical Services - RTSrubicontechservices.com HQ: Kennesaw, NJ, United StatesReported employees: 51-200 | Kennesaw, NJ, United States | 51-200 | Exact match | 176 contacts → |
“Rubicon Technical Services (RTS) offers innovative solutions for commissioning, testing, optimizing, operating, and maintaining critical facilities that depend on electrical…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Mcclure Companymcclureco.com HQ: Harrisburg, PA, United StatesReported employees: 201-500 | Harrisburg, PA, United States | 201-500 | Exact match | 175 contacts → |
“Headquartered in Harrisburg, Pennsylvania, McClure Company is one of the mid-Atlantic's largest, fully integrated mechanical construction, engineering, maintenance and energy…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Agthermagtherm.com HQ: Colomiers, FranceReported employees: 51-200 | Colomiers, France | 51-200 | Exact match | 172 contacts → |
“Agtherm est une PME indépendante dont l'activité dans le domaine du génie climatique et de la performance énergétique, vous assure la sécurité et la qualité de ses interventions…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Global Commissioningglobal-cxm.com HQ: Whitstable, United KingdomReported employees: 51-200 | Whitstable, United Kingdom | 51-200 | Exact match | 170 contacts → |
“Recognised by the Financial Times as one of Europe's top 500 fastest-growing companies for three years running, Global Commissioning is the leading authority in data centre…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Retro-commissioning companies: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
1,902 records in the displayed employee bands.
15 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 1,917 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Retro-commissioning companies by location
8 lists · largest firstEvery Retro-commissioning companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Retro-commissioning companies based in the United States785
- Retro-commissioning companies based in the United Kingdom138
- Retro-commissioning companies based in France125
- Retro-commissioning companies based in Canada115
- Retro-commissioning companies based in Australia44
- Retro-commissioning companies based in Italy37
- Retro-commissioning companies based in the United Arab Emirates33
Cities
Questions about this company list
What does Exact match mean for retro-commissioning companies?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many retro-commissioning companies did RevenueBase find worldwide?
The saved snapshot records 1,917 matching company records, 26,567 tracked contacts and 9,065 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 retro-commissioning companies worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/retro-commissioning-companies.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗