Lookalikes · Data refreshed September 2026

25 Aptim Services, LLC lookalikes

Compiled by the RevenueBase Data Team Data refreshed Sep 26, 2026 637 matching companies

Looking for Aptim Services, LLC lookalikes, Aptim Services, LLC competitors or Aptim Services, LLC alternatives? The RevenueBase company graph holds 637 companies that do what Aptim Services, LLC does, matched at 85%+ measured description similarity (RevenueBase, September 2026). The 25 largest are ranked below by team size; across all 637 matches RevenueBase tracks 206,384 professional contacts, including 94,783 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 Aptim Services, LLC and ranks them by company size. Data current as of September 26, 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 Sep 26, 2026 Match quality audited by blind human judging

Reference company

Aptim Services, LLC

“APTIM SERVICES, LLC is a company based out of 4171 ESSEN LN, Baton Rouge, Louisiana, United States.”

11-50Employees

2Contacts tracked

2Verified emails

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The 25 largest Aptim Services, LLC competitors and alternatives

Ranked by team size

Top 25 of 637 companies matching Aptim Services, LLC at 85%+ description similarity, ranked by team size. Similarity is each company's measured match to Aptim Services, LLC (100% = identical). Data refreshed Sep 26, 2026.
#	Company	HQ	Employees	Similarity	Verified emails
1	AECOM	Dallas, US	10001+	87%	22,014 contacts →
2	Stantec	Edmonton, CA	10001+	92%	16,733 contacts →
3	GHD	Sydney, AU	10001+	86%	6,670 contacts →
4	Tetra Tech	Pasadena, US	10001+	87%	5,379 contacts →
5	WSP In Canada	Montreal, CA	10001+	86%	4,920 contacts →
6	Golder	Vancouver, CA	5,001-10,000	87%	1,021 contacts →
7	Brown And Caldwell	Walnut Creek, US	1,001-5,000	88%	1 contacts →
8	Geosyntec Consultants	Boca Raton, US	1,001-5,000	86%	1,651 contacts →
9	Olsson	Lincoln, US	1,001-5,000	86%	1,282 contacts →
10	Hazen And Sawyer	New York, US	1,001-5,000	85%	1,446 contacts →
11	Swca Environmental Consultants	Phoenix, US	1,001-5,000	86%	1,169 contacts →
12	GEI Consultants, INC	Woburn, US	1,001-5,000	85%	1,310 contacts →
13	Montrose Environmental Group	Little Rock, US	1,001-5,000	86%	860 contacts →
14	Weston Solutions, INC	West Chester, US	1,001-5,000	86%	665 contacts →
15	Antea Group Nederland	Dv, NL	1,001-5,000	86%	918 contacts →
16	RSK Group	Helsby, GB	10001+	87%	30 contacts →
17	Verdantas	Tampa, US	1,001-5,000	91%	791 contacts →
18	Apex Companies	Rockville, US	1,001-5,000	88%	640 contacts →
19	Haley & Aldrich	Burlington, US	501-1,000	87%	782 contacts →
20	Braun Intertec Corporation	Minneapolis, US	1,001-5,000	85%	745 contacts →
21	Trinity Consultants	Dallas, US	1,001-5,000	88%	621 contacts →
22	Tonkin Taylor	Auckland, NZ	1,001-5,000	85%	804 contacts →
23	Parametrix	Seattle, US	501-1,000	86%	684 contacts →
24	DUDEK	Encinitas, US	501-1,000	87%	484 contacts →
25	The Foth Companies	De Pere, US	501-1,000	87%	541 contacts →

Showing the 25 largest of 637 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 Aptim Services, LLC, 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 Aptim Services, LLC 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 September 26, 2026. Lists refresh periodically as the graph is re-checked.

Frequently asked

What are Aptim Services, LLC lookalikes?

Aptim Services, LLC lookalikes are companies that closely resemble what Aptim Services, LLC 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 Aptim Services, LLC shown as a percentage.

What companies are similar to Aptim Services, LLC?

The largest companies similar to Aptim Services, LLC are AECOM, Stantec, GHD and Tetra Tech. The table above shows the 25 largest of the 637 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 Aptim Services, LLC'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 94,783 verified emails and direct dials tracked across all 637 matched companies.

Who are Aptim Services, LLC's biggest competitors?

The largest Aptim Services, LLC competitors by measured business-description similarity are AECOM, Stantec, GHD and Tetra Tech. Every company here does what Aptim Services, LLC does at 85%+ similarity, ranked by team size.

What are the best Aptim Services, LLC alternatives?

The closest Aptim Services, LLC alternatives are the companies whose own business descriptions match Aptim Services, LLC'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 September 26, 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.