Lookalikes · Data refreshed October 2026

25 Apex Companies lookalikes

Compiled by the RevenueBase Data Team Data refreshed Oct 15, 2026 1762 matching companies

Looking for Apex Companies lookalikes, Apex Companies competitors or Apex Companies alternatives? The RevenueBase company graph holds 1762 companies that do what Apex Companies does, matched at 85%+ measured description similarity (RevenueBase, October 2026). The 25 largest are ranked below by team size; across all 1762 matches RevenueBase tracks 168,872 professional contacts, including 79,557 with verified work emails.

Similarity is measured on what companies actually do, from their business descriptions rather than industry codes, and is shown per row as a percentage. This page keeps only companies at 85%+ measured similarity to Apex Companies and ranks them by company size. Data current as of October 15, 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 Similarity shown on every row Refreshed Oct 15, 2026 Match quality audited by blind human judging

Reference company

Apex Companies

“Who is Apex?”

1,001-5,000Employees

1,266Contacts tracked

638Verified emails

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The 25 largest Apex Companies competitors and alternatives

Ranked by team size

Top 25 of 1762 companies matching Apex Companies at 85%+ description similarity, ranked by team size. Similarity is each company's measured match to Apex Companies (100% = identical). Data refreshed Oct 15, 2026.
#	Company	HQ	Employees	Similarity	Verified emails
1	Stantec	Edmonton, CA	10001+	87%	17,539 contacts →
2	Tetra Tech	Pasadena, US	10001+	88%	5,641 contacts →
3	Terracon	Olathe, US	5,001-10,000	86%	3,484 contacts →
4	Michael Baker International	Pittsburgh, US	5,001-10,000	85%	2,909 contacts →
5	Golder	Vancouver, CA	5,001-10,000	89%	947 contacts →
6	APTIM	Baton Rouge, US	1,001-5,000	88%	1,064 contacts →
7	Geosyntec Consultants	Boca Raton, US	1,001-5,000	90%	1,643 contacts →
8	Brown And Caldwell	Walnut Creek, US	1,001-5,000	91%	1 contacts →
9	Providence	Baton Rouge, US	n/a	87%	58 contacts →
10	Hazen And Sawyer	New York, US	1,001-5,000	89%	1,492 contacts →
11	Olsson	Lincoln, US	1,001-5,000	87%	1,348 contacts →
12	Civil & Environmental Consultants, INC	Moon Township, US	1,001-5,000	86%	982 contacts →
13	LJA	Houston, US	1,001-5,000	86%	1,500 contacts →
14	IMEG	Rock Island, US	1,001-5,000	86%	269 contacts →
15	Burns & Mcdonnell India	Mumbai, IN	1,001-5,000	86%	227 contacts →
16	Carollo Engineers	Walnut Creek, US	1,001-5,000	85%	1,198 contacts →
17	Bowman Consulting	Reston, US	1,001-5,000	87%	1,056 contacts →
18	CHA Consulting, INC	Albany, US	1,001-5,000	85%	987 contacts →
19	UES	Orlando, US	1,001-5,000	85%	1,009 contacts →
20	GEI Consultants, INC	Woburn, US	1,001-5,000	88%	1,270 contacts →
21	Exponent	Menlo Park, US	1,001-5,000	89%	990 contacts →
22	Antea Group Nederland	Dv, NL	1,001-5,000	86%	903 contacts →
23	Knight Piesold	Denver, US	1,001-5,000	85%	644 contacts →
24	Verdantas	Tampa, US	1,001-5,000	89%	843 contacts →
25	RSK Group	Helsby, GB	10001+	86%	24 contacts →

Showing the 25 largest of 1762 similar companies

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How similarity works

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.
Matching: Companies are matched on what they actually do, as described in their own business descriptions, never on shared industry codes. The list keeps only matches at 85%+ measured similarity to Apex Companies, and match quality is audited by blind human judging. Read the full methodology.
Ranking: Team size, largest first, among the matched companies: companies are ordered by the number of professionals RevenueBase tracks at each one. Each row also shows its measured similarity to Apex Companies as a percentage.
Verification: Contact records re-verify on a rolling cadence rather than being scraped once and left to decay; each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on October 15, 2026. Lists refresh periodically as the graph is re-checked.

Frequently asked

What are Apex Companies lookalikes?

Apex Companies lookalikes are companies that closely resemble what Apex Companies does and sells, based on each company's own business description. The table above ranks the closest matches by company size, with each company's similarity to Apex Companies shown as a percentage.

What companies are similar to Apex Companies?

The largest companies similar to Apex Companies are Stantec, Tetra Tech, Terracon and Michael Baker International. The table above shows the 25 largest of the 1762 matched companies, with each row's similarity shown as a percentage.

How is similarity measured?

Similarity scores how closely a company's business, as described in its own words, matches Apex Companies's, shown as a percentage (100% = an identical description). The list keeps companies at 85% or above and ranks them by team size.

How do I get contacts at these companies?

A free RevenueBase account lets you run this exact search and work the top matches, verified emails and direct dials included. Upgrading unlocks the 79,557 verified emails and direct dials tracked across all 1762 matched companies.

Who are Apex Companies's biggest competitors?

The largest Apex Companies competitors by measured business-description similarity are Stantec, Tetra Tech, Terracon and Michael Baker International. Every company here does what Apex Companies does at 85%+ similarity, ranked by team size.

What are the best Apex Companies alternatives?

The closest Apex Companies alternatives are the companies whose own business descriptions match Apex Companies's most closely, shown above with each one's similarity as a percentage and ranked by team size.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 15, 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.