Company lists · Data refreshed November 2026

Top 25 Vintage building systems experts based in the United States

RevenueBase identified 445 company matches for vintage building systems experts associated with the United States as of November 2026 and tracks 6,422 professional contacts across them, including 2,952 with verified work emails. New York is the largest hub.

This list covers company matches for vintage building systems experts associated with the United States, 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
445Companies
6,422Contacts tracked
2,952Verified emails
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The 25 largest vintage building systems experts based in the United States

Ranked by team size
Top 25 of 445 company matches for vintage building systems experts based in the United States, 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 matchSt. Louis, MO, United StatesHQ recorded Nov 6, 20261,001-5,000928 contacts →

Exact match

“ArchKey, one of the largest privately held specialty trade installation and facilities services companies in the United States, is a leader in designing, building, and maintaining…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2Exact matchSt. Louis, OK, United StatesHQ recorded Nov 6, 20261,001-5,000400 contacts →

Exact match

“Western Specialty Contractors has been family-owned and operated since 1915, proudly serving clients nationwide with over 30+ branch offices.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchWindsor, CT, United StatesHQ recorded Nov 6, 2026201-500198 contacts →

Exact match

“EMCOR Services New England Mechanical Services (NEMSI) offers a full range of mechanical, electrical, plumbing, sheetmetal, building automation, and facilities services that…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchWarren, NJ, United StatesHQ recorded Nov 6, 202651-200189 contacts →

Exact match

“At The Falcon Group, our team of experienced professionals comes together to provide a wide range of services to meet all of our clients’ specific needs.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchHeath, TX, United StatesHQ recorded Nov 6, 202651-200187 contacts →

Exact match

“GMR has become known as the "Industry Best Practice" for helping facilities document existing conditions, prepare for improvements, and minimize risk.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchSan Jose, CA, United StatesHQ recorded Nov 6, 202610001+160 contacts →

Exact match

“We are a leading provider of engineering, consulting, installation and maintenance services for mission-critical systems in buildings.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500158 contacts →

Exact match

“In 1953, James N.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchNew York, NY, United StatesHQ recorded Nov 6, 202651-200134 contacts →

Exact match

“RAND Engineering & Architecture, DPC is an independently owned consulting firm serving owners, boards, property managers, architects, and institutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchMonroe, OH, United StatesHQ recorded Nov 6, 2026201-500110 contacts →

Exact match

“LRT Restoration Technologies is a premier specialty contractor with expertise in building envelope restoration, structural restoration, waterproofing, and industrial restoration.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchValhalla, NY, United StatesHQ recorded Nov 6, 202651-200108 contacts →

Exact match

“Since 1974, OLA Consulting Engineers has built a reputation for providing innovative engineering services to meet or exceed our clients’ expectations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchSt. Paul, United StatesHQ recorded Nov 6, 202651-200101 contacts →

Exact match

“Building Restoration Corporation (BRC) is the Midwest’s premier restoration contractor, helping owners and property managers extend the life of their buildings with craftsmanship…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchLenexa, KS, United StatesHQ recorded Nov 6, 202611-50100 contacts →

Exact match

“Henderson Building Solutions is a general contractor and commissioning services firm that provides a seamless bridge between design, construction, and ongoing maintenance.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchChicago, IL, United StatesHQ recorded Nov 6, 202651-200100 contacts →

Exact match

“At Klein & Hoffman, we work collaboratively to deliver value-driven architectural restoration and structural engineering solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchSpringfield, VA, United StatesHQ recorded Nov 6, 202651-20099 contacts →

Exact match

“Serving the Washington, DC Metro Area since 1936, we are available to handle a range of mechanical, electrical, HVAC, and plumbing requirements.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchSavannah, GA, United StatesHQ recorded Nov 6, 2026n/a89 contacts →

Exact match

“MEPCO was founded to provide a qualified single source solution in the MEP trades for service and construction.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchWest Hartford, CT, United StatesHQ recorded Nov 6, 202651-20083 contacts →

Exact match

“Environmental Systems Co.(ESC), A Fidelity Company, is a building-integrated systems contractor that helps facility owners and managers enhance building performance by planning…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchWarren, SC, United StatesHQ recorded Nov 6, 202651-20083 contacts →

Exact match

“For 60 years, Becht Engineering BT, Inc, has been supporting our “Building Technologies” clientele by providing mechanical, electrical, plumbing, fire protection (MEP & FP)…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchFreeport, ME, United StatesHQ recorded Nov 6, 202611-5074 contacts →

Exact match

“Criterium Engineers, one of North America’s leading consulting engineering firms, helps clients better understand the buildings that they own, build, manage, or purchase.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchSt. Louis, MO, United StatesHQ recorded Nov 6, 202651-20073 contacts →

Exact match

“Mid America Specialty Services has been providing Architectural Metal, Stone Wood, Glass and Facade restoration since 1985.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchSarasota, FL, United StatesHQ recorded Nov 6, 202651-20068 contacts →

Exact match

“Engineering Integrity to Achieve Your Vision Karins Engineering serves clients throughout the life cycle of their properties, from design to demolition.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchTukwila, OR, United StatesHQ recorded Nov 6, 202651-20063 contacts →

Exact match

“At Trotter & Morton Facilities Services, we are passionate about three things: A Culture of Philanthropy, Safety for our Employees, and Quality of Service!”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchWichita, KS, United StatesHQ recorded Nov 6, 202651-20059 contacts →

Exact match

“Mechanical - Fire Protection - Fabrication - Building Controls Central Consolidated provides construction and renovation services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchHammond, IN, United StatesHQ recorded Nov 6, 202651-20055 contacts →

Exact match

“Total Exterior Building Solutions Since 1960 Korellis has a portfolio that includes some of the most durable, energy efficient, and unique building systems in the local commercial…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchNew Haven, VA, United StatesHQ recorded Nov 6, 202611-5048 contacts →

Exact match

“Founded in 1977, Hoffmann Architects + Engineers specializes in the rehabilitation of the building enclosure.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchSan Ramon, CA, United StatesHQ recorded Nov 6, 202651-20048 contacts →

Exact match

“Legacy is a mechanical services and engineering firm which focuses on the performance of high quality preventive and preductive maintenance programs, as well as heating air…”

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

Showing 25 of 445 vintage building systems experts based in the United States

See the full list, filter by size, metro and specialty, and access 2,952 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Vintage building systems experts based in the United States at a glance

As of Nov 6, 2026
46.0%Verified-email coverage
14.4Average contacts per company
1-10Median size (employees)
8.8%Largest-city concentration · New York
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
248
11-50
124
51-200
57
201-500
4
501-1,000
2
1,001-5,000
4
10001+
1

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 445 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 States whose business descriptions match “vintage building systems experts” 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 2,952 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.

Vintage building systems experts by metro

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 “vintage building systems experts”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many vintage building systems experts are there based in the United States?

RevenueBase identified 445 company matches for vintage building systems experts associated with the United States 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?

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

Which city has the most vintage building systems experts?

New York leads with 39 company records, followed by Chicago (10) and Houston (6).

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 2,952 professional contacts with verified work emails tracked across these 445 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.