Lookalikes · Data refreshed November 2026

25 Olsson lookalikes

Compiled by the RevenueBase Data Team Data refreshed Nov 4, 2026 4389 matching companies

Looking for Olsson lookalikes, Olsson competitors or Olsson alternatives? The RevenueBase company graph holds 4389 companies that do what Olsson does, matched at 85%+ measured description similarity (RevenueBase, November 2026). The 25 largest are ranked below by team size; across all 4389 matches RevenueBase tracks 808,078 professional contacts, including 320,594 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 Olsson and ranks them by company size. Data current as of November 4, 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 Nov 4, 2026 Match quality audited by blind human judging

Reference company

Olsson

“Olsson is an engineering firm made up of people who craft expert solutions and designs that improve communities.”

1,001-5,000Employees

2,289Contacts tracked

1,439Verified emails

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The 25 largest Olsson competitors and alternatives

Ranked by team size

Top 25 of 4389 companies matching Olsson at 85%+ description similarity, ranked by team size. Similarity is each company's measured match to Olsson (100% = identical). Data refreshed Nov 4, 2026.
#	Company	HQ	Employees	Similarity	Verified emails
1	AECOM	Dallas, US	10001+	90%	24,007 contacts →
2	Jacobs	Dallas, US	10001+	87%	23,627 contacts →
3	Arcadis	Highlands Ranch, US	10001+	85%	17,412 contacts →
4	Stantec	Edmonton, CA	10001+	91%	19,085 contacts →
5	WSP	Montreal, CA	10001+	88%	9,711 contacts →
6	Mott Macdonald	Toronto, CA	10001+	87%	9,190 contacts →
7	Ramboll	London, GB	10001+	88%	4,036 contacts →
8	GHD	Sydney, AU	10001+	86%	7,154 contacts →
9	Tetra Tech	Pasadena, US	10001+	89%	6,123 contacts →
10	AFRY	Cankaya, TR	10001+	86%	8,169 contacts →
11	EGIS	FR	10001+	85%	5,390 contacts →
12	DAR	Beirut, LB	10001+	86%	4,778 contacts →
13	Tata Consulting Engineers	Navi Mumbai, IN	5,001-10,000	88%	2,150 contacts →
14	Aurecon	Brisbane, AU	5,001-10,000	86%	5,618 contacts →
15	CDM Smith	Boston, US	5,001-10,000	88%	1,528 contacts →
16	URS Corporation, An Aecom Company	San Francisco, US	10001+	86%	605 contacts →
17	COWI	DK	5,001-10,000	88%	236 contacts →
18	TRC Companies, INC	Windsor, US	5,001-10,000	88%	4,100 contacts →
19	Terracon	Omaha, US	5,001-10,000	87%	3,836 contacts →
20	Khatib & Alami	Al Mansour, IQ	5,001-10,000	88%	2,063 contacts →
21	Artelia	Saint-Ouen, FR	5,001-10,000	87%	2,781 contacts →
22	Michael Baker International	Pittsburgh, US	5,001-10,000	87%	3,017 contacts →
23	RPS	Abingdon, GB	5,001-10,000	87%	816 contacts →
24	STV	Austin, US	1,001-5,000	87%	2,296 contacts →
25	SMEC	North Sydney, AU	5,001-10,000	87%	1,200 contacts →

Showing the 25 largest of 4389 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 Olsson, 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 Olsson 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 November 4, 2026. Lists refresh periodically as the graph is re-checked.

Frequently asked

What are Olsson lookalikes?

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

What companies are similar to Olsson?

The largest companies similar to Olsson are AECOM, Jacobs, Arcadis and Stantec. The table above shows the 25 largest of the 4389 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 Olsson'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 320,594 verified emails and direct dials tracked across all 4389 matched companies.

Who are Olsson's biggest competitors?

The largest Olsson competitors by measured business-description similarity are AECOM, Jacobs, Arcadis and Stantec. Every company here does what Olsson does at 85%+ similarity, ranked by team size.

What are the best Olsson alternatives?

The closest Olsson alternatives are the companies whose own business descriptions match Olsson'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 November 4, 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.