Lookalikes · Data refreshed October 2026

25 GBI lookalikes

Compiled by the RevenueBase Data Team Data refreshed Oct 15, 2026 5440 matching companies

Looking for GBI lookalikes, GBI competitors or GBI alternatives? The RevenueBase company graph holds 5440 companies that do what GBI does, matched at 85%+ measured description similarity (RevenueBase, October 2026). The 25 largest are ranked below by team size; across all 5440 matches RevenueBase tracks 377,075 professional contacts, including 136,888 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 GBI 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

GBI

“Notre firme de génie-conseil offre une gamme complète de services d’ingénierie, adaptés aux besoins d’une clientèle diversifiée, tant publique que privée.”

201-500Employees

454Contacts tracked

267Verified emails

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The 25 largest GBI competitors and alternatives

Ranked by team size

Top 25 of 5440 companies matching GBI at 85%+ description similarity, ranked by team size. Similarity is each company's measured match to GBI (100% = identical). Data refreshed Oct 15, 2026.
#	Company	HQ	Employees	Similarity	Verified emails
1	AECOM	Dallas, US	10001+	88%	22,113 contacts →
2	Stantec	Edmonton, CA	10001+	89%	17,539 contacts →
3	WSP In The U.S	New York, US	10001+	85%	5,683 contacts →
4	COWI	DK	5,001-10,000	86%	224 contacts →
5	Terracon	Olathe, US	5,001-10,000	86%	3,484 contacts →
6	Khatib & Alami	Singapore, SG	5,001-10,000	85%	1,885 contacts →
7	Artelia	Saint-Ouen, FR	5,001-10,000	87%	2,643 contacts →
8	Michael Baker International	Pittsburgh, US	5,001-10,000	87%	2,909 contacts →
9	Norconsult	Sandvika, NO	5,001-10,000	85%	248 contacts →
10	National Engineering Services Pakistan PVT Limited Nespak	Lahore, PK	5,001-10,000	86%	6 contacts →
11	TYLIN	San Francisco, US	1,001-5,000	86%	1,345 contacts →
12	NIRAS	Allerod Capital Of Denmark, DK	1,001-5,000	88%	216 contacts →
13	Multiconsult	Oslo, NO	1,001-5,000	86%	1,327 contacts →
14	TYPSA	San Sebastian De Los Reyes, ES	1,001-5,000	87%	473 contacts →
15	Geosyntec Consultants	Boca Raton, US	1,001-5,000	86%	1,643 contacts →
16	Olsson	Lincoln, US	1,001-5,000	87%	1,348 contacts →
17	LJA	Houston, US	1,001-5,000	86%	1,500 contacts →
18	KEO International Consultants	Safat, KW	1,001-5,000	86%	547 contacts →
19	Colliers Engineering & Design	Holmdel, US	1,001-5,000	85%	405 contacts →
20	IMEG	Rock Island, US	1,001-5,000	88%	269 contacts →
21	Shaker Consultancy Group	Cairo, EG	1,001-5,000	86%	57 contacts →
22	Burns & Mcdonnell India	Mumbai, IN	1,001-5,000	86%	227 contacts →
23	Westwood Professional Services	Plano, US	1,001-5,000	85%	1,084 contacts →
24	ILF Consulting Engineers	AT	1,001-5,000	86%	698 contacts →
25	CHA Consulting, INC	Albany, US	1,001-5,000	88%	987 contacts →

Showing the 25 largest of 5440 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 GBI, 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 GBI 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 GBI lookalikes?

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

What companies are similar to GBI?

The largest companies similar to GBI are AECOM, Stantec, WSP In The U.S and COWI. The table above shows the 25 largest of the 5440 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 GBI'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 136,888 verified emails and direct dials tracked across all 5440 matched companies.

Who are GBI's biggest competitors?

The largest GBI competitors by measured business-description similarity are AECOM, Stantec, WSP In The U.S and COWI. Every company here does what GBI does at 85%+ similarity, ranked by team size.

What are the best GBI alternatives?

The closest GBI alternatives are the companies whose own business descriptions match GBI'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.