Company lists · Data refreshed September 2026

Top 25 Infrastructure design firms based in Chicago, United States

Name: Infrastructure design firms based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 89 companies tracked

RevenueBase identified 89 infrastructure design firms headquartered in Chicago, United States as of September 2026 and tracks 7,777 professional contacts across them, including 4,352 with verified work emails. Houston is the largest hub.

This list covers infrastructure design firms headquartered in Chicago, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 20, 2026 86% judged on-target in blind review

89Companies

7,777Contacts tracked

4,352Verified emails

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The 25 largest infrastructure design firms based in Chicago, United States

Ranked by team size

Top 25 of 89 infrastructure design firms based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure design firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Benesch	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,225 contacts →
	Partial evidence “Serving a broad range of markets, Benesch has played a role in shaping our nation’s infrastructure and local communities for decades.” Source: RevenueBase Database · checked Sep 20, 2026
2	Lochner	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	1,001-5,000	802 contacts →
	Partial evidence “Founded in 1944, Lochner is a trusted infrastructure services provider for aviation, surface transportation and water clients across the United States.” Source: RevenueBase Database · checked Sep 20, 2026
3	HBK Engineering, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	501-1,000	674 contacts →
	Partial evidence “HBK Engineering, LLC a Quanta Services Company is a fully licensed, professional engineering design firm headquartered in downtown Chicago providing civil, environmental…” Source: RevenueBase Database · checked Sep 20, 2026
4	MEADE	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	1,001-5,000	594 contacts →
	Partial evidence “Meade leads the field in design, construction and maintenance of electric, natural gas, and telecommunications delivery systems, both above and below ground and has done so for…” Source: RevenueBase Database · checked Sep 20, 2026
5	Enventure Engineering	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	501-1,000	569 contacts →
	Partial evidence “Enventure is a trusted provider of Building Engineering, Plant Design, and Compliance solutions with offices in the Chicago and delivery centres in Bangalore, Shivamogga, Hubli…” Source: RevenueBase Database · checked Sep 20, 2026
6	Collins Engineers, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	201-500	432 contacts →
	Indirect evidence “In 1979, Collins Engineers, Inc.” Source: RevenueBase Database · checked Sep 20, 2026
7	Primera Engineers	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	201-500	362 contacts →
	Partial evidence “Primera Engineers is a mid-size, full-service, woman-owned (WBE) engineering design and consulting firm specializing in four areas of expertise: buildings, transportation…” Source: RevenueBase Database · checked Sep 20, 2026
8	Wight & Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	306 contacts →
	Partial evidence “At Wight & Company, we inspire the human experience through innovative design.” Source: RevenueBase Database · checked Sep 20, 2026
9	Ardmore Roderick	Strong evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	201-500	264 contacts →
	Strong evidence “Ardmore Roderick is a full-service infrastructure solutions partner delivering design, construction management, and program management services to the transportation, utility…” Source: RevenueBase Database · checked Sep 20, 2026
10	Lamar Johnson Collaborative	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	201-500	224 contacts →
	Partial evidence “Lamar Johnson Collaborative (LJC) is a full-service, integrated architecture and design firm.” Source: RevenueBase Database · checked Sep 20, 2026
11	Infrastructure Engineering INC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	201-500	224 contacts →
	Strong evidence “Infrastructure Engineering Inc.(IEI) is a majority African American-owned, multi-disciplinary consulting firm with offices in eight states that delivers design engineering…” Source: RevenueBase Database · checked Sep 20, 2026
12	SUMAC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	183 contacts →
	Indirect evidence “SUMAC is an architecture, engineering, and consulting firm that promotes sustainability as the key element to increasing the profitability of our clients and partners.” Source: RevenueBase Database · checked Sep 20, 2026
13	D'escoto, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	201-500	156 contacts →
	Partial evidence “d'Escoto, Inc, established in 1972 and incorporated in 1977, is a professional business enterprise offering multi-disciplinary design and construction services to public and…” Source: RevenueBase Database · checked Sep 20, 2026
14	R.M. Chin & Associates, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	136 contacts →
	Indirect evidence “R.M.” Source: RevenueBase Database · checked Sep 20, 2026
15	KDM Engineering	Strong evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	114 contacts →
	Strong evidence “Founded upon a vision of challenging and changing the energy infrastructure to help light up the world, KDM specializes in engineering consulting and design, program and project…” Source: RevenueBase Database · checked Sep 20, 2026
16	Singh Associates, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	110 contacts →
	Partial evidence “For more than 30 years, SINGH + Associates has been meeting and exceeding our clients’ expectations for high quality planning, design and engineering services delivered with care…” Source: RevenueBase Database · checked Sep 20, 2026
17	Transmart	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	81 contacts →
	Indirect evidence “Transportation is not just a branch at TranSmart, it’s our focus.” Source: RevenueBase Database · checked Sep 20, 2026
18	Ciorba Group, INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	66 contacts →
	Indirect evidence “Ciorba Group has been providing professional engineering services to various state and local governmental agencies for over 95 years.” Source: RevenueBase Database · checked Sep 20, 2026
19	Dynasty Group	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	60 contacts →
	Indirect evidence “Dynasty Group, Inc.” Source: RevenueBase Database · checked Sep 20, 2026
20	CKL Engineers, LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	11-50	52 contacts →
	Partial evidence “CKL Engineers, LLC began on the far south side of Chicago as a one-person operation to create opportunities for design engineers, planners and construction engineers wanting to…” Source: RevenueBase Database · checked Sep 20, 2026
21	Bailey Edward	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	51 contacts →
	Partial evidence “Good Design Created By Good People By listening to the needs of people, places, and the planet, Bailey Edward collaborates with communities to transform the built environment for…” Source: RevenueBase Database · checked Sep 20, 2026
22	Holabird & Root	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	11-50	51 contacts →
	Partial evidence “A leading design firm since its founding in 1880, Holabird & Root’s history reflects the evolution of American architecture.” Source: RevenueBase Database · checked Sep 20, 2026
23	Greenprint Partners	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	11-50	41 contacts →
	Partial evidence “Greenprint Partners is an award-winning consulting firm specializing in community-centered environmental infrastructure.” Source: RevenueBase Database · checked Sep 20, 2026
24	Specialty Consulting, INC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	51-200	37 contacts →
	Partial evidence “Specialty Consulting, Inc.(SPC) is a Hispanic–owned, infrastructure engineering and scientific consulting firm based in Chicago.” Source: RevenueBase Database · checked Sep 20, 2026
25	Amped I LLC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 20, 2026	11-50	36 contacts →
	Strong evidence “Amped I is an innovative design and engineering firm specializing in power infrastructure projects ranging from transmission to distribution and fire protection projects for power…” Source: RevenueBase Database · checked Sep 20, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: infrastructure design firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names infrastructure design firms.
Partial evidence: Its own public description names part of infrastructure design firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name infrastructure design firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 89 infrastructure design firms based in Chicago, United States

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Infrastructure design firms based in Chicago, United States at a glance

As of Sep 20, 2026

56.0%Verified-email coverage

87.4Average contacts per company

11-50Median size (employees)

175.3%Largest-city concentration · Houston

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Chicago, so it is reported there. Company counts and contact totals on this page are exact for Chicago, over 89 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among infrastructure design firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

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.
What qualifies: Companies headquartered in Chicago, United States whose own description of what they do matches “infrastructure design firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names infrastructure design firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among infrastructure design firms, and records with no verified work email. Companies headquartered outside Chicago are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 4,352 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 20, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Infrastructure design firms by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names infrastructure design firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many infrastructure design firms are there based in Chicago, United States?

RevenueBase identified 89 infrastructure design firms headquartered in Chicago, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Benesch, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most infrastructure design firms?

Houston leads with 156 headquartered companies, followed by New York (141) and Chicago (89).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 4,352 verified decision-maker contacts tracked across these 89 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 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.