Lookalikes · Data refreshed October 2026

25 Tonkin lookalikes

Compiled by the RevenueBase Data Team Data refreshed Oct 18, 2026 1797 matching companies

Looking for Tonkin lookalikes, Tonkin competitors or Tonkin alternatives? The RevenueBase company graph holds 1797 companies that do what Tonkin does, matched at 85%+ measured description similarity (RevenueBase, October 2026). The 25 largest are ranked below by team size; across all 1797 matches RevenueBase tracks 252,947 professional contacts, including 81,771 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 Tonkin and ranks them by company size. Data current as of October 18, 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 18, 2026 Match quality audited by blind human judging

Reference company

Tonkin

“Tonkin is a leading provider of engineering, environmental and consultancy services to private and public organisations.”

201-500Employees

239Contacts tracked

186Verified emails

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The 25 largest Tonkin competitors and alternatives

Ranked by team size

Top 25 of 1797 companies matching Tonkin at 85%+ description similarity, ranked by team size. Similarity is each company's measured match to Tonkin (100% = identical). Data refreshed Oct 18, 2026.
#	Company	HQ	Employees	Similarity	Verified emails
1	AECOM	Dallas, US	10001+	87%	22,113 contacts →
2	Ramboll	DK	10001+	85%	3,843 contacts →
3	DAR	Beirut, LB	10001+	86%	4,297 contacts →
4	WSP In Canada	Montreal, CA	10001+	87%	4,927 contacts →
5	Khatib & Alami	Singapore, SG	5,001-10,000	85%	1,885 contacts →
6	Artelia	Saint-Ouen, FR	5,001-10,000	86%	2,643 contacts →
7	RPS	Abingdon, GB	5,001-10,000	86%	834 contacts →
8	NIRAS	Allerod Capital Of Denmark, DK	1,001-5,000	87%	216 contacts →
9	Brown And Caldwell	Walnut Creek, US	1,001-5,000	86%	1 contacts →
10	Olsson	Lincoln, US	1,001-5,000	89%	1,348 contacts →
11	Civil & Environmental Consultants, INC	Moon Township, US	1,001-5,000	86%	982 contacts →
12	Meinhardt Group	Singapore, SG	1,001-5,000	85%	426 contacts →
13	Burns & Mcdonnell India	Mumbai, IN	1,001-5,000	89%	227 contacts →
14	CHA Consulting, INC	Albany, US	1,001-5,000	85%	987 contacts →
15	GEI Consultants, INC	Woburn, US	1,001-5,000	86%	1,270 contacts →
16	Ulteig	Fargo, US	1,001-5,000	85%	920 contacts →
17	Intercontinental Consultants And Technocrats Pvt. LTD	New Delhi, IN	1,001-5,000	86%	203 contacts →
18	Volkert, INC	Mobile, US	1,001-5,000	87%	655 contacts →
19	Voyants Solutions Private Limited	Gurugram, IN	1,001-5,000	86%	3 contacts →
20	Yüksel Proje	Ankara, TR	501-1,000	89%	286 contacts →
21	Associated Engineering	Edmonton, CA	501-1,000	85%	642 contacts →
22	Cardno	Fortitude Valley, AU	1,001-5,000	87%	229 contacts →
23	Pace Architecture, Engineering Planning	Kuwait City Kuwait, KW	501-1,000	88%	375 contacts →
24	Grontmij Group	Halmstad, SE	10001+	88%	1 contacts →
25	Archetype Group	Ho Chi Minh City, VN	1,001-5,000	85%	274 contacts →

Showing the 25 largest of 1797 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 Tonkin, 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 Tonkin 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 18, 2026. Lists refresh periodically as the graph is re-checked.

Frequently asked

What are Tonkin lookalikes?

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

What companies are similar to Tonkin?

The largest companies similar to Tonkin are AECOM, Ramboll, DAR and WSP In Canada. The table above shows the 25 largest of the 1797 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 Tonkin'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 81,771 verified emails and direct dials tracked across all 1797 matched companies.

Who are Tonkin's biggest competitors?

The largest Tonkin competitors by measured business-description similarity are AECOM, Ramboll, DAR and WSP In Canada. Every company here does what Tonkin does at 85%+ similarity, ranked by team size.

What are the best Tonkin alternatives?

The closest Tonkin alternatives are the companies whose own business descriptions match Tonkin'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 18, 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.