Company lists · Data refreshed November 2026

Top 25 Building code consulting firms based in the United States

RevenueBase identified 1,822 company matches for building code consulting firms associated with the United States as of November 2026 and tracks 22,211 professional contacts across them, including 10,216 with verified work emails. New York is the largest hub.

This list covers company matches for building code consulting firms 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 5, 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 5, 2026 How this list was built
1,822Companies
22,211Contacts tracked
10,216Verified emails
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The 25 largest building code consulting firms based in the United States

Ranked by team size
Top 25 of 1,822 company matches for building code consulting firms based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 5, 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 matchHouston, TX, United StatesHQ recorded Nov 5, 20261,001-5,0001,258 contacts →

Exact match

“Consultants.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
2Exact matchWaltham, CA, United StatesHQ recorded Nov 5, 2026501-1,000969 contacts →

Exact match

“Simpson Gumpertz & Heger (SGH) is a national engineering firm committed to delivering holistic advice for our clients’ most complex challenges.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
3Exact matchKennesaw, FL, United StatesHQ recorded Nov 5, 2026501-1,000541 contacts →

Exact match

“Established in 1996, NOVA was originally founded to provide Environmental Consulting, Geotechnical Engineering, and Construction Materials Testing and Inspection services to the…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
4Exact matchNew York, CA, United StatesHQ recorded Nov 5, 2026501-1,000540 contacts →

Exact match

“Founded in New York City in 1969, DeSimone provides structural engineering, façade and building envelope consulting, vertical transportation consulting, forensics, structural…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
5Exact matchHighlands Ranch, CO, United StatesHQ recorded Nov 5, 2026201-500456 contacts →

Exact match

“Lerch Bates is the global multidisciplinary technical consultancy saving time and money for those designing, modernizing, investigating, or managing buildings.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
6Exact matchPhoenix, TX, United StatesHQ recorded Nov 5, 2026201-500353 contacts →

Exact match

“Since 1985, Telgian has served as a trusted partner to clients around the globe, providing innovative fire, security, life safety consulting and engineering/design services…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
7Exact matchWalnut Creek, CA, United StatesHQ recorded Nov 5, 2026201-500352 contacts →

Exact match

“MKA International, Inc.(MKA) a leading multidisciplinary Construction & Engineering Consulting firm, providing seamless support and specialized services to a wide variety of…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
8Exact matchMendota Heights, MN, United StatesHQ recorded Nov 5, 20261,001-5,000320 contacts →

Exact match

“Summit Companies has deep experience and a successful history in fire protection services for commercial, industrial and large-scale residential applications.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
9Exact matchNyc, NY, United StatesHQ recorded Nov 5, 2026201-500318 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 5, 2026 · View company records in RevenueBase
10Exact matchBoulder, CO, United StatesHQ recorded Nov 5, 202651-200276 contacts →

Exact match

“JVA, Incorporated is an employee-owned consulting engineering firm with offices in Boulder, Fort Collins, Winter Park, Glenwood Springs, and Denver, Colorado.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
11Exact matchCarlsbad, CA, United StatesHQ recorded Nov 5, 202651-200205 contacts →

Exact match

“Since 1989, MC’s team of professional consultants have leveraged their extensive construction backgrounds to deliver industry-leading construction consulting and forensic…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
12Exact matchNew York, NY, United StatesHQ recorded Nov 5, 2026201-500186 contacts →

Exact match

“Milrose is the nation’s premier building lifecycle firm, offering fully integrated services in Permitting, Code Consulting, Municipal Compliance, Special Inspections…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
13Exact matchNorwalk, CT, United StatesHQ recorded Nov 5, 202651-200147 contacts →

Exact match

“For over five decades, we’ve been at the forefront of transforming the built environment to be more energy efficient, accessible, healthy, and resilient.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
14Exact matchAuburn Hills, MI, United StatesHQ recorded Nov 5, 202651-200145 contacts →

Exact match

“Our Story: Fieldstone Architecture & Engineering is full-service A&E firm focused on providing tailored services to the most trusted builders and developers in the United States.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
15Exact matchNappanee, IN, United StatesHQ recorded Nov 5, 202651-200145 contacts →

Exact match

“ICC NTA is a member of the International Code Council (ICC) Family of Solutions, the largest international association of building safety professionals who offer solutions…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
16Exact matchNew York, NY, United StatesHQ recorded Nov 5, 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 5, 2026 · View company records in RevenueBase
17Exact matchAmbler, PA, United StatesHQ recorded Nov 5, 202651-200133 contacts →

Exact match

“Mulhern+Kulp is a structural engineering firm with a unique specialty in residential design, providing services to Architects, Builders and Developers nationwide.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
18Exact matchRockland, MA, United StatesHQ recorded Nov 5, 202651-200133 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
19Exact matchNew York, NY, United StatesHQ recorded Nov 5, 202651-200131 contacts →

Exact match

“Gilsanz Murray Steficek is a structural engineering and building envelope consulting firm committed to creating solutions.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
20Exact matchRichfield, OH, United StatesHQ recorded Nov 5, 202651-200118 contacts →

Exact match

“Thorson • Baker + Associates (TBA) was founded in 1993 to provide engineering consultation and design services for the building construction industry.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
21Exact matchMinneapolis/ Milwaukee/ Chicago, IL, United StatesHQ recorded Nov 5, 202651-200112 contacts →

Exact match

“Inspec is an independent consulting engineering/architectural firm focusing on building enclosures.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
22Exact matchSeattle, WA, United StatesHQ recorded Nov 5, 202651-200110 contacts →

Exact match

“BHC Consultants, LLC (BHC) is an employee owned and managed consulting, engineering, building code and construction compliance, and planning firm with offices in Seattle and…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
23Exact matchSt. Louis, MA, United StatesHQ recorded Nov 5, 202651-200110 contacts →

Exact match

“Code Consultants, Inc.(CCI) is an engineering and consulting firm providing a diverse range of design and consultation services since 1973: Fire protection & life safety code…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
24Exact matchPotomac, MD, United StatesHQ recorded Nov 5, 202651-20099 contacts →

Exact match

“Structural engineering consulting – from exciting visions to inspired reality.”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase
25Exact matchLincolnshire, IL, United StatesHQ recorded Nov 5, 20261,001-5,00094 contacts →

Exact match

“Aon Fire Protection Engineering joined Jensen Hughes in 2016 The combination of Jensen Hughes and Aon FPE brings together the two leading brands in the industry and increases the…”

Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase

Showing 25 of 1,822 building code consulting firms based in the United States

See the full list, filter by size, metro and specialty, and access 10,216 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Building code consulting firms based in the United States at a glance

As of Nov 5, 2026
46.0%Verified-email coverage
12.2Average contacts per company
1-10Median size (employees)
6.6%Largest-city concentration · New York
Nov 5, 2026Page data refreshed

Companies by employee count

1-10
1,179
11-50
524
51-200
92
201-500
11
501-1,000
5
1,001-5,000
3
5,001-10,000
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 1,822 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 “building code consulting firms” 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 10,216 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 5, 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 “building code consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many building code consulting firms are there based in the United States?

RevenueBase identified 1,822 company matches for building code consulting firms 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?

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

Which city has the most building code consulting firms?

New York leads with 120 company records, followed by Houston (33) and Miami (32).

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 10,216 professional contacts with verified work emails tracked across these 1,822 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 5, 2026.

Ready to reach these companies? Verified emails and direct dials for all 1,822 building code consulting firms based in the United States. 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.