Lookalikes · Data refreshed October 2026

22 ATC Williams lookalikes

Compiled by the RevenueBase Data Team Data refreshed Oct 20, 2026 70 matching companies

Looking for ATC Williams lookalikes, ATC Williams competitors or ATC Williams alternatives? The RevenueBase company graph holds 70 companies that do what ATC Williams does, matched at 85%+ measured description similarity (RevenueBase, October 2026). The 22 largest are ranked below by team size; across all 70 matches RevenueBase tracks 2,948 professional contacts, including 1,285 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 ATC Williams and ranks them by company size. Data current as of October 20, 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 20, 2026 Match quality audited by blind human judging

Reference company

ATC Williams

“ATC Williams is a consulting engineering company specialising in providing custom solutions for tailings, water, waste, and resource recovery projects.”

201-500Employees

222Contacts tracked

53Verified emails

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The 22 largest ATC Williams competitors and alternatives

Ranked by team size

Top 22 of 70 companies matching ATC Williams at 85%+ description similarity, ranked by team size. Similarity is each company's measured match to ATC Williams (100% = identical). Data refreshed Oct 20, 2026.
#	Company	HQ	Employees	Similarity	Verified emails
1	Knight Piesold	Denver, US	1,001-5,000	86%	601 contacts →
2	Paterson & Cooke	Calgary, CA	201-500	90%	171 contacts →
3	Lara Consulting & Engineering S.A.C	Lima, PE	201-500	89%	27 contacts →
4	RED Earth Engineering A Geosyntec Company	Spring Hill, AU	51-200	86%	69 contacts →
5	Geoestável Consultoria E Projetos Ltda	Belo Horizonte, BR	201-500	86%	55 contacts →
6	NCL Ingeniería Y Construcción SPA	CL	11-50	85%	11 contacts →
7	Tierra Group International, LTD	Lakewood, US	11-50	88%	5 contacts →
8	Equilibrium	Vancouver, CA	11-50	86%	40 contacts →
9	Epoch Resources PTY LTD	Bedfordview, ZA	51-200	86%	43 contacts →
10	GWS Engenharia	Belo Horizonte, BR	51-200	88%	20 contacts →
11	Responsible Mining Solutions RMS	Sudbury, CA	11-50	86%	21 contacts →
12	Mintrex	Subiaco, AU	11-50	87%	4 contacts →
13	REC	Perth, AU	11-50	87%	15 contacts →
14	Isithelo	Sandton, ZA	11-50	86%	6 contacts →
15	INR Consulting & Engineering INC	Cankaya, TR	11-50	87%	3 contacts →
16	Mcgehee Engineering Corp	Jasper, US	11-50	85%	3 contacts →
17	Priscu And Associates Consulting Engineers INC	West Vancouver, CA	1-10	86%	2 contacts →
18	Agapito Associates, INC	Grand Junction, US	11-50	86%	2 contacts →
19	Engineered Tailings Solutions	City Of Tshwane, ZA	1-10	87%	2 contacts →
20	Entail Geotechnical Consulting	Johannesburg, ZA	1-10	87%	1 contacts →
21	Drive Consulting PTY LTD	Toowong, AU	1-10	89%	1 contacts →
22	Geohart & Associates PTY LTD	Mulgrave, AU	1-10	85%	1 contacts →

Showing the 22 largest of 70 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 ATC Williams, 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 ATC Williams 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 20, 2026. Lists refresh periodically as the graph is re-checked.

Frequently asked

What are ATC Williams lookalikes?

ATC Williams lookalikes are companies that closely resemble what ATC Williams 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 ATC Williams shown as a percentage.

What companies are similar to ATC Williams?

The largest companies similar to ATC Williams are Knight Piesold, Paterson & Cooke, Lara Consulting & Engineering S.A.C and RED Earth Engineering A Geosyntec Company. The table above shows the 22 largest of the 70 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 ATC Williams'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 1,285 verified emails and direct dials tracked across all 70 matched companies.

Who are ATC Williams's biggest competitors?

The largest ATC Williams competitors by measured business-description similarity are Knight Piesold, Paterson & Cooke, Lara Consulting & Engineering S.A.C and RED Earth Engineering A Geosyntec Company. Every company here does what ATC Williams does at 85%+ similarity, ranked by team size.

What are the best ATC Williams alternatives?

The closest ATC Williams alternatives are the companies whose own business descriptions match ATC Williams'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 20, 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.