Company lists · Data refreshed September 2026

Top 25 Building code consultants based in the United States

Name: Building code consultants based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 685 companies tracked

RevenueBase identified 685 building code consultants headquartered in the United States as of September 2026 and tracks 7,509 professional contacts across them, including 3,151 with verified work emails. New York is the largest hub.

This list covers building code consultants headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 16, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 16, 2026 86% judged on-target in blind review

685Companies

7,509Contacts tracked

3,151Verified emails

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The 25 largest building code consultants based in the United States

Ranked by team size

Top 25 of 685 building code consultants based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to building code consultants: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Simpson Gumpertz & Heger SGH	Indirect evidence	Waltham, MA, United StatesHQ checked Sep 16, 2026	501-1,000	942 contacts →
	Indirect evidence “Simpson Gumpertz & Heger (SGH) is a national engineering firm committed to delivering holistic advice for our clients’ most complex challenges.” Source: RevenueBase Database · checked Sep 16, 2026
2	Telgian	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 16, 2026	201-500	354 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
3	Milrose Consultants	Strong evidence	New York, NY, United StatesHQ checked Sep 16, 2026	201-500	174 contacts →
	Strong evidence “Milrose is the nation’s premier building lifecycle firm, offering fully integrated services in Permitting, Code Consulting, Municipal Compliance, Special Inspections…” Source: RevenueBase Database · checked Sep 16, 2026
4	ICC Nta, LLC	Strong evidence	Nappanee, IN, United StatesHQ checked Sep 16, 2026	51-200	149 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
5	Rand Engineering & Architecture, DPC	Indirect evidence	New York, NY, United StatesHQ checked Sep 16, 2026	51-200	126 contacts →
	Indirect evidence “RAND Engineering & Architecture, DPC is an independently owned consulting firm serving owners, boards, property managers, architects, and institutions.” Source: RevenueBase Database · checked Sep 16, 2026
6	Thorson Baker Associates TBA	Partial evidence	Richfield, OH, United StatesHQ checked Sep 16, 2026	51-200	111 contacts →
	Partial evidence “Thorson • Baker + Associates (TBA) was founded in 1993 to provide engineering consultation and design services for the building construction industry.” Source: RevenueBase Database · checked Sep 16, 2026
7	BHC Consultants	Strong evidence	Seattle, WA, United StatesHQ checked Sep 16, 2026	51-200	109 contacts →
	Strong evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
8	AON Fire Protection Engineering, A Jensen Hughes Company	Indirect evidence	Lincolnshire, IL, United StatesHQ checked Sep 16, 2026	1,001-5,000	97 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
9	Becht Engineering Bt, INC	Partial evidence	Warren, NJ, United StatesHQ checked Sep 16, 2026	51-200	85 contacts →
	Partial evidence “For 60 years, Becht Engineering BT, Inc, has been supporting our “Building Technologies” clientele by providing mechanical, electrical, plumbing, fire protection (MEP & FP)…” Source: RevenueBase Database · checked Sep 16, 2026
10	Aecc, INC	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 16, 2026	11-50	84 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
11	Code RED Consultants	Strong evidence	Southborough, MA, United StatesHQ checked Sep 16, 2026	51-200	83 contacts →
	Strong evidence “Code Red Consultants is a premier fire protection and life safety engineering firm dedicated to safeguarding the built environment.” Source: RevenueBase Database · checked Sep 16, 2026
12	West Coast Code Consultants, INC	Strong evidence	San Ramon, CA, United StatesHQ checked Sep 16, 2026	51-200	83 contacts →
	Strong evidence “West Coast Code Consultants, Inc.(WC³) specializes in providing complete plan review, inspection and staff augmentation services in the building safety, fire prevention, public…” Source: RevenueBase Database · checked Sep 16, 2026
13	R.W. Sullivan Engineering	Indirect evidence	Boston, MA, United StatesHQ checked Sep 16, 2026	51-200	81 contacts →
	Indirect evidence “R.W.” Source: RevenueBase Database · checked Sep 16, 2026
14	Outsource Consultants, INC	Strong evidence	New York, NY, United StatesHQ checked Sep 16, 2026	51-200	75 contacts →
	Strong evidence “Building Code \| Zoning \| Approvals \| Permits \| Sign Offs \| Building Compliance” Source: RevenueBase Database · checked Sep 16, 2026
15	Burnham Nationwide, INC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 16, 2026	51-200	75 contacts →
	Strong evidence “The industry leader in building permit expediting and code consulting, Burnham Nationwide leverages 25 years of experience navigating the permit and code compliance process to…” Source: RevenueBase Database · checked Sep 16, 2026
16	ELD Engineering, INC	Indirect evidence	Forney, TX, United StatesHQ checked Sep 16, 2026	51-200	74 contacts →
	Indirect evidence “Eric L.” Source: RevenueBase Database · checked Sep 16, 2026
17	Criterium Engineers	Partial evidence	Freeport, ME, United StatesHQ checked Sep 16, 2026	11-50	72 contacts →
	Partial evidence “Criterium Engineers, one of North America’s leading consulting engineering firms, helps clients better understand the buildings that they own, build, manage, or purchase.” Source: RevenueBase Database · checked Sep 16, 2026
18	CANY	Partial evidence	New York, United StatesHQ checked Sep 16, 2026	51-200	70 contacts →
	Partial evidence “CANY is a building enclosure consulting firm offering full architectural and engineering services.” Source: RevenueBase Database · checked Sep 16, 2026
19	Shums Coda Associates	Partial evidence	Pleasanton, CA, United StatesHQ checked Sep 16, 2026	51-200	68 contacts →
	Partial evidence “Shums Coda Associates represents a building, fire and life-safety consulting company that has been in business since 2006.” Source: RevenueBase Database · checked Sep 16, 2026
20	CSD Structural Engineers	Indirect evidence	Milwaukee, WI, United StatesHQ checked Sep 16, 2026	11-50	67 contacts →
	Indirect evidence “CSD Structural Engineers (CSD) is a nationally known and respected structural engineering consulting firm headquartered in Milwaukee, Wisconsin.” Source: RevenueBase Database · checked Sep 16, 2026
21	Metropolis Group, INC	Indirect evidence	New York, NY, United StatesHQ checked Sep 16, 2026	51-200	61 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
22	Severud Associates	Partial evidence	NY, United StatesHQ checked Sep 16, 2026	51-200	60 contacts →
	Partial evidence “Severud Associates has been providing effective solutions to complex engineering problems since 1928-over 90 years of service to the building profession.” Source: RevenueBase Database · checked Sep 16, 2026
23	KOW Building Consultants	Strong evidence	Smithtown, NY, United StatesHQ checked Sep 16, 2026	11-50	59 contacts →
	Strong evidence “KOW Building Consultants provides building and construction consultation services to traditional banks, private lenders, mortgage lending institutions, state housing agencies…” Source: RevenueBase Database · checked Sep 16, 2026
24	Pete Fowler Construction	Indirect evidence	San Clemente, CA, United StatesHQ checked Sep 16, 2026	11-50	58 contacts →
	Indirect evidence “Pete Fowler Construction Services, Inc.(PFCS) is a professional construction services provider.” Source: RevenueBase Database · checked Sep 16, 2026
25	SSC Engineering, INC	Partial evidence	Chesterfield, MO, United StatesHQ checked Sep 16, 2026	11-50	55 contacts →
	Partial evidence “SSC Engineering offers a wide range of consulting services in all aspects of building engineering.” Source: RevenueBase Database · checked Sep 16, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: building code consultants. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names building code consultants.
Partial evidence: Its own public description names part of building code consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name building code consultants. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 685 building code consultants based in the United States

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Building code consultants based in the United States at a glance

As of Sep 16, 2026

42.0%Verified-email coverage

11.0Average contacts per company

1-10Median size (employees)

8.6%Largest-city concentration · New York

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

440

11-50

190

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

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 685 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among building code consultants, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “building code consultants”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names building code consultants), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among building code consultants, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 3,151 across the full list. 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 September 16, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Building code consultants by metro

Building code consultants in New York59

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names building code consultants, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

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

RevenueBase identified 685 building code consultants headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Simpson Gumpertz & Heger SGH, headquartered in Waltham, tops this list with the largest team on record.

Which city has the most building code consultants?

New York leads with 59 headquartered companies, followed by Houston (17) and Miami (13).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,151 verified decision-maker contacts tracked across these 685 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 16, 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 Smart Search, 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.