Company lists · Data refreshed September 2026

Top 25 Commercial property inspectors based in the United States

Name: Commercial property inspectors based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 2,156 companies tracked

RevenueBase identified 2,156 commercial property inspectors headquartered in the United States as of September 2026 and tracks 16,351 professional contacts across them, including 5,916 with verified work emails. Miami is the largest hub.

This list covers commercial property inspectors 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 19, 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 19, 2026 86% judged on-target in blind review

2,156Companies

16,351Contacts tracked

5,916Verified emails

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The 25 largest commercial property inspectors based in the United States

Ranked by team size

Top 25 of 2,156 commercial property inspectors based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to commercial property inspectors: 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	Applied Technical Services, LLC	Partial evidence	Marietta, GA, United StatesHQ checked Sep 19, 2026	1,001-5,000	890 contacts →
	Partial evidence “Applied Technical Services assists commercial and industrial clients by providing inspection, testing, consulting engineering, and calibration services.” Source: RevenueBase Database · checked Sep 19, 2026
2	Professional Service Industries, Inc. PSI	Indirect evidence	Arlington Heights, IL, United StatesHQ checked Sep 19, 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 19, 2026
3	Nova Engineering And Environmental, LLC	Indirect evidence	Kennesaw, GA, United StatesHQ checked Sep 19, 2026	501-1,000	518 contacts →
	Indirect 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 19, 2026
4	Socotec US	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 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 19, 2026
5	AEI Consultants	Indirect evidence	Walnut Creek, CA, United StatesHQ checked Sep 19, 2026	201-500	433 contacts →
	Indirect evidence “AEI Consultants provides building, environmental, land and sustainability assessment and consulting services throughout North America.” Source: RevenueBase Database · checked Sep 19, 2026
6	FST Technical Services	Indirect evidence	Chandler, AZ, United StatesHQ checked Sep 19, 2026	201-500	381 contacts →
	Indirect evidence “Life Cycle Testing, Inspection, Certification & Engineering Solutions for Mission Critical Facilities Worldwide Commitment to Diversity – FST is dedicated to non-discriminatory…” Source: RevenueBase Database · checked Sep 19, 2026
7	Telgian	Indirect evidence	Phoenix, AZ, United StatesHQ checked Sep 19, 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 19, 2026
8	US Inspect	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 19, 2026	201-500	196 contacts →
	Partial evidence “US Inspect is one of the nation’s leading property inspection services firms.” Source: RevenueBase Database · checked Sep 19, 2026
9	Leighton	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	51-200	190 contacts →
	Indirect evidence “Leighton, a Verdantas Company, provides environmental, geotechnical, materials testing, and special inspection services across the built community.” Source: RevenueBase Database · checked Sep 19, 2026
10	DBI Consultants	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	51-200	187 contacts →
	Indirect evidence “We evaluate damaged structures.” Source: RevenueBase Database · checked Sep 19, 2026
11	GMR	Indirect evidence	Heath, TX, United StatesHQ checked Sep 19, 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 19, 2026
12	Twining, INC	Indirect evidence	Long Beach, CA, United StatesHQ checked Sep 19, 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 19, 2026
13	Milrose Consultants	Indirect evidence	New York, NY, United StatesHQ checked Sep 19, 2026	201-500	174 contacts →
	Indirect 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 19, 2026
14	Smith-Emery	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	201-500	150 contacts →
	Indirect evidence “Smith-Emery has been providing inspection and materials testing services for public agencies and private companies for the past 113 years.” Source: RevenueBase Database · checked Sep 19, 2026
15	Qualspec	Indirect evidence	Deer Park, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	149 contacts →
	Indirect evidence “QualSpec is a leading industrial inspection firm headquartered in Houston, Texas.” Source: RevenueBase Database · checked Sep 19, 2026
16	Burgess Construction Consultants, INC	Indirect evidence	Fairview, TX, United StatesHQ checked Sep 19, 2026	201-500	147 contacts →
	Indirect evidence “Since 1986, Burgess Construction Consultants, Inc.” Source: RevenueBase Database · checked Sep 19, 2026
17	CGI Coastal Gulf & International	Indirect evidence	Saint Rose, LA, United StatesHQ checked Sep 19, 2026	201-500	130 contacts →
	Indirect evidence “Since 1978, Coastal Gulf & International, Inc.(CGI) has been a trusted leader in independent inspection, testing, and technical services for the energy, petrochemical, and marine…” Source: RevenueBase Database · checked Sep 19, 2026
18	Aeis LLC	Indirect evidence	South Plainfield, NJ, United StatesHQ checked Sep 19, 2026	201-500	116 contacts →
	Indirect evidence “AEIS, LLC is a testing, inspection, and certification (TIC) agency that increases quality and safety outcomes for major infrastructure.” Source: RevenueBase Database · checked Sep 19, 2026
19	Certerra	Indirect evidence	Las Vegas, NV, United StatesHQ checked Sep 19, 2026	1,001-5,000	114 contacts →
	Indirect evidence “Certerra provides technology-enabled testing, inspection, and certification services for new product development, engineering solutions to manage assets, and quality assurance for…” Source: RevenueBase Database · checked Sep 19, 2026
20	Strategic Asset Services	Partial evidence	Foothill Ranch, CA, United StatesHQ checked Sep 19, 2026	201-500	113 contacts →
	Partial evidence “Strategic Asset Services was formed with the goal of elevating the quality of annual lender property inspections as a collateral monitoring tool.” Source: RevenueBase Database · checked Sep 19, 2026
21	Quality Built	Indirect evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 19, 2026	201-500	102 contacts →
	Indirect evidence “Quality Built, LLC began in in 1994, and for more than 20 years, we have been recognized as the nation's most innovative leader in the area of construction quality assurance and…” Source: RevenueBase Database · checked Sep 19, 2026
22	Encorus Group	Partial evidence	Springville, NY, United StatesHQ checked Sep 19, 2026	51-200	97 contacts →
	Partial evidence “Encorus Group, founded in 1996, employs over 100 engineers, architects, technicians, inspectors, and support staff across New York State.” Source: RevenueBase Database · checked Sep 19, 2026
23	Ctlgroup	Indirect evidence	Mount Prospect, IL, United StatesHQ checked Sep 19, 2026	51-200	95 contacts →
	Indirect evidence “CTLGroup is a globally recognized engineering consulting and testing firm specializing in structural condition assessment, forensic engineering, and construction materials testing.” Source: RevenueBase Database · checked Sep 19, 2026
24	National Insurance Inspection Services	Partial evidence	Fresno, CA, United StatesHQ checked Sep 19, 2026	11-50	94 contacts →
	Partial evidence “National Insurance Inspection Services is the leading provider of high quality property insurance inspections, catering to the specific needs of property and casualty insurance…” Source: RevenueBase Database · checked Sep 19, 2026
25	Diamond Technical Services, INC	Indirect evidence	Blairsville, PA, United StatesHQ checked Sep 19, 2026	201-500	90 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 19, 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: commercial property inspectors. 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 commercial property inspectors.
Partial evidence: Its own public description names part of commercial property inspectors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name commercial property inspectors. 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 2,156 commercial property inspectors based in the United States

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Commercial property inspectors based in the United States at a glance

As of Sep 19, 2026

36.2%Verified-email coverage

7.6Average contacts per company

1-10Median size (employees)

2.0%Largest-city concentration · Miami

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

1,650

11-50

382

51-200

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 2,156 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 commercial property inspectors, 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 “commercial property inspectors”. 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 commercial property inspectors), 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 commercial property inspectors, 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, 5,916 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 19, 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.

Commercial property inspectors 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 commercial property inspectors, 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 commercial property inspectors are there based in the United States?

RevenueBase identified 2,156 commercial property inspectors 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?

Applied Technical Services, LLC, headquartered in Marietta, tops this list with the largest team on record.

Which city has the most commercial property inspectors?

Miami leads with 43 headquartered companies, followed by New York (41) and Houston (37).

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 5,916 verified decision-maker contacts tracked across these 2,156 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 19, 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.