Company lists · Data refreshed September 2026

Top 25 Construction inspection companies based in the United States

Name: Construction inspection companies 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 2,246 companies tracked

RevenueBase identified 2,246 construction inspection companies headquartered in the United States as of September 2026 and tracks 33,053 professional contacts across them, including 11,452 with verified work emails. New York is the largest hub.

This list covers construction inspection companies 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

2,246Companies

33,053Contacts tracked

11,452Verified emails

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The 25 largest construction inspection companies based in the United States

Ranked by team size

Top 25 of 2,246 construction inspection companies 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 construction inspection companies: 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	Structure Tone	Partial evidence	NY, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,299 contacts →
	Partial evidence “Structure Tone was founded in 1971 in NYC, as an interior construction focused builder.” Source: RevenueBase Database · checked Sep 16, 2026
2	TCS	Strong evidence	Plano, TX, United StatesHQ checked Sep 16, 2026	n/a	878 contacts →
	Strong evidence “Tam Consulting Services LLC (TCS) provides engineering and quality services which includes construction engineering and inspection (CE & I), materials testing, program management…” Source: RevenueBase Database · checked Sep 16, 2026
3	Professional Service Industries, Inc. PSI	Indirect evidence	Arlington Heights, IL, United StatesHQ checked Sep 16, 2026	1,001-5,000	778 contacts →
	Indirect evidence “Intertek, a leading provider of quality solutions to industries around the world, has completed the acquisition of Professional Service Industries, Inc.(PSI), a leading…” Source: RevenueBase Database · checked Sep 16, 2026
4	Tower Engineering Professionals	Indirect evidence	Raleigh, NC, United StatesHQ checked Sep 16, 2026	1,001-5,000	707 contacts →
	Indirect evidence “Tower Engineer Professionals was founded in 1997 by two tower-climbing engineers.” Source: RevenueBase Database · checked Sep 16, 2026
5	Austin Industries	Partial evidence	Dallas, TX, United StatesHQ checked Sep 16, 2026	5,001-10,000	578 contacts →
	Partial evidence “Austin Industries provides nearly every type of civil, commercial and industrial construction services, capitalizing on the depth of expertise in our three operating companies –…” Source: RevenueBase Database · checked Sep 16, 2026
6	Quality Integrated Services, Inc. QIS	Strong evidence	Guymon, OK, United StatesHQ checked Sep 16, 2026	1,001-5,000	524 contacts →
	Strong evidence “We’ve been a leader in the inspection and construction industry for over 25 years.” Source: RevenueBase Database · checked Sep 16, 2026
7	Nova Engineering And Environmental, LLC	Strong evidence	Kennesaw, GA, United StatesHQ checked Sep 16, 2026	501-1,000	518 contacts →
	Strong evidence “Established in 1996, NOVA was originally founded to provide Environmental Consulting, Geotechnical Engineering, and Construction Materials Testing and Inspection services to the…” Source: RevenueBase Database · checked Sep 16, 2026
8	Socotec US	Indirect evidence	New York, NY, United StatesHQ checked Sep 16, 2026	1,001-5,000	492 contacts →
	Indirect evidence “Welcome to SOCOTEC in the US, Trusted Expertise, From the Ground Up.” Source: RevenueBase Database · checked Sep 16, 2026
9	Remington & Vernick Engineers	Indirect evidence	Cherry Hill, NJ, United StatesHQ checked Sep 16, 2026	501-1,000	438 contacts →
	Indirect evidence “Founded in 1901, RVE has grown to be an industry leader with 500 team members in offices throughout New Jersey, Pennsylvania, Delaware, Maryland and North Carolina.” Source: RevenueBase Database · checked Sep 16, 2026
10	John Moriarty & Associates	Partial evidence	Winchester, MA, United StatesHQ checked Sep 16, 2026	501-1,000	403 contacts →
	Partial evidence “John Moriarty & Associates was founded in 1985 with a determination to provide the best possible construction management services to our clients.” Source: RevenueBase Database · checked Sep 16, 2026
11	Consultant Engineering, INC	Partial evidence	Phoenix, AZ, United StatesHQ checked Sep 16, 2026	201-500	377 contacts →
	Partial evidence “Consultant Engineering, Inc.(CEI) is a professional consulting firm established in 1996; today CEI is one of the Southwest’s most reputable Construction Management (CM) firms.” Source: RevenueBase Database · checked Sep 16, 2026
12	Frontier Integrity Solutions	Partial evidence	Tulsa, OK, United StatesHQ checked Sep 16, 2026	201-500	343 contacts →
	Partial evidence “The FIS Management Team understands the changing landscape brought on by todays demands on inspection providers and strives to differentiate ourselves through strategic service…” Source: RevenueBase Database · checked Sep 16, 2026
13	MKA International, INC	Partial evidence	Walnut Creek, CA, United StatesHQ checked Sep 16, 2026	201-500	332 contacts →
	Partial evidence “MKA International, Inc.(MKA) a leading multidisciplinary Construction & Engineering Consulting firm, providing seamless support and specialized services to a wide variety of…” Source: RevenueBase Database · checked Sep 16, 2026
14	DDS Companies	Partial evidence	West Henrietta, NY, United StatesHQ checked Sep 16, 2026	201-500	244 contacts →
	Partial evidence “Our companies unite the practical knowledge of construction with the resources of a full service civil engineering firm to offer a unique and valuable combination of services.” Source: RevenueBase Database · checked Sep 16, 2026
15	4leaf, INC	Indirect evidence	Pleasanton, CA, United StatesHQ checked Sep 16, 2026	501-1,000	220 contacts →
	Indirect evidence “Founded in 4LEAF, Inc.(4LEAF) is a multi-disciplined firm providing services throughout the United States.” Source: RevenueBase Database · checked Sep 16, 2026
16	SPS NEW England, INC	Indirect evidence	Salisbury, MA, United StatesHQ checked Sep 16, 2026	201-500	220 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
17	Geotek	Strong evidence	Las Vegas, NV, United StatesHQ checked Sep 16, 2026	201-500	215 contacts →
	Strong evidence “Incorporated in 1997, GeoTek is a full service consulting engineering firm specializing in geotechnical engineering, construction materials testing, special inspection, and…” Source: RevenueBase Database · checked Sep 16, 2026
18	MC Consultants	Partial evidence	Carlsbad, CA, United StatesHQ checked Sep 16, 2026	51-200	196 contacts →
	Partial evidence “Since 1989, MC’s team of professional consultants have leveraged their extensive construction backgrounds to deliver industry-leading construction consulting and forensic…” Source: RevenueBase Database · checked Sep 16, 2026
19	ATANE	Indirect evidence	NY, United StatesHQ checked Sep 16, 2026	201-500	194 contacts →
	Indirect evidence “From humble beginnings in 1991 as a 2-person company in New York City, we have now grown into a 500-person strong consulting firm, with 15 regional offices in the US (and India).” Source: RevenueBase Database · checked Sep 16, 2026
20	Leighton	Partial evidence	Irvine, CA, United StatesHQ checked Sep 16, 2026	51-200	190 contacts →
	Partial evidence “Leighton, a Verdantas Company, provides environmental, geotechnical, materials testing, and special inspection services across the built community.” Source: RevenueBase Database · checked Sep 16, 2026
21	GMR	Indirect evidence	Heath, TX, United StatesHQ checked Sep 16, 2026	51-200	179 contacts →
	Indirect evidence “GMR has become known as the "Industry Best Practice" for helping facilities document existing conditions, prepare for improvements, and minimize risk.” Source: RevenueBase Database · checked Sep 16, 2026
22	Twining, INC	Indirect evidence	Long Beach, CA, United StatesHQ checked Sep 16, 2026	201-500	178 contacts →
	Indirect evidence “Twining has continued to expand and evolve since its inception more than a century ago.” Source: RevenueBase Database · checked Sep 16, 2026
23	EXO	Partial evidence	Magnolia, TX, United StatesHQ checked Sep 16, 2026	51-200	167 contacts →
	Partial evidence “We are an innovative supplier of infrastructure inspection, engineering, and field repair and reinforcement services for the global electrical utility, renewables, lighting, and…” Source: RevenueBase Database · checked Sep 16, 2026
24	Rocksol Consulting Group, INC	Indirect evidence	Thornton, CO, United StatesHQ checked Sep 16, 2026	201-500	161 contacts →
	Indirect evidence “Since 1996, RockSol has earned an outstanding reputation for engineering excellence, customer service, and quality assurance.” Source: RevenueBase Database · checked Sep 16, 2026
25	Building & Earth	Strong evidence	Birmingham, AL, United StatesHQ checked Sep 16, 2026	201-500	161 contacts →
	Strong evidence “Building & Earth is a professional engineering firm, specializing in geotechnical engineering, construction materials testing, special inspections per I.B.C./I.C.C.” 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: construction inspection companies. 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 construction inspection companies.
Partial evidence: Its own public description names part of construction inspection companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name construction inspection companies. 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 2,246 construction inspection companies based in the United States

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Construction inspection companies based in the United States at a glance

As of Sep 16, 2026

34.6%Verified-email coverage

14.7Average contacts per company

1-10Median size (employees)

4.2%Largest-city concentration · New York

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

1,166

11-50

735

51-200

264

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 2,246 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 construction inspection companies, 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 “construction inspection companies”. 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 construction inspection companies), 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 construction inspection companies, 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, 11,452 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.

Construction inspection companies by metro

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 construction inspection companies, 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 construction inspection companies are there based in the United States?

RevenueBase identified 2,246 construction inspection companies 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?

Structure Tone, headquartered in United States, tops this list with the largest team on record.

Which city has the most construction inspection companies?

New York leads with 95 headquartered companies, followed by Houston (63) and Miami (48).

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 11,452 verified decision-maker contacts tracked across these 2,246 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.