Company lists · Data refreshed September 2026

Top 25 Architecture software IT services based in Chicago, United States

Name: Architecture software IT services based in Chicago, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 121 companies tracked

RevenueBase identified 121 architecture software IT services headquartered in Chicago, United States as of September 2026 and tracks 1,498 professional contacts across them, including 858 with verified work emails. Across the United States, New York is the largest hub for this category (378 companies); Chicago has 121.

This list covers architecture software IT services 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 23, 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 23, 2026 86% judged on-target in blind review

121Companies

1,498Contacts tracked

858Verified emails

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The 25 largest architecture software IT services based in Chicago, United States

Ranked by team size

Top 25 of 121 architecture software IT services based in Chicago, United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to architecture software IT services: 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	Lamar Johnson Collaborative	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 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 23, 2026
2	Sheehan Nagle Hartray Architects, A Woolpert Company	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	51-200	148 contacts →
	Partial evidence “Sheehan Nagle Hartray Architects is an award-winning firm with offices in Chicago and London offering architectural design, interior design, and pre-design services including site…” Source: RevenueBase Database · checked Sep 23, 2026
3	Partners By Design	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	51-200	63 contacts →
	Indirect evidence “Whether you’re considering an office update, planning a corporate relocation, or envisioning a state-of-the-art facility built from the ground-up, Partners by Design can take your…” Source: RevenueBase Database · checked Sep 23, 2026
4	DXU Architects	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	51-200	62 contacts →
	Indirect evidence “We are solution based, always looking to exhaust the possibilities in efforts to vet out the best scenario.” Source: RevenueBase Database · checked Sep 23, 2026
5	Fitzgerald	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	56 contacts →
	Partial evidence “With roots dating back more than 100 years, FitzGerald is a national architecture, interior design, and sustainability firm committed to the creation of exemplary environments…” Source: RevenueBase Database · checked Sep 23, 2026
6	Eckenhoff Saunders	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	48 contacts →
	Partial evidence “Eckenhoff Saunders is a Chicago-based architecture, planning, and interior design firm.” Source: RevenueBase Database · checked Sep 23, 2026
7	OKW Architects	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	48 contacts →
	Indirect evidence “OKW Architects seeks to develop meaningful relationships as the foundation of everything we do.” Source: RevenueBase Database · checked Sep 23, 2026
8	Whitney Architects	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	48 contacts →
	Indirect evidence “Made up of a diverse group of architects and interior designers, Whitney Architects is a design firm built on the fundamental belief that our work can change people’s lives for…” Source: RevenueBase Database · checked Sep 23, 2026
9	BOX Studios	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	44 contacts →
	Partial evidence “BOX Studios is a full-service architecture and interior design firm dedicated to providing excellent customer service and designs tailored specifically to each of our clients’…” Source: RevenueBase Database · checked Sep 23, 2026
10	Studio GC Architecture Interiors	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	39 contacts →
	Partial evidence “Studio GC is a Chicago-based architecture firm founded with the intent of providing very personal architectural design services.” Source: RevenueBase Database · checked Sep 23, 2026
11	STR Partners LLC	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	37 contacts →
	Partial evidence “STR Partners is a full-service architectural firm led by three principals and staffed by more than 50 talented design professionals.” Source: RevenueBase Database · checked Sep 23, 2026
12	Mary Cook Associates	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	36 contacts →
	Indirect evidence “Utilizing our proprietary approach articulated in The Art of Space™ written by Mary Cook, our studio structure establishes an ideal collaborative framework for delivering our…” Source: RevenueBase Database · checked Sep 23, 2026
13	Stlarchitects	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	30 contacts →
	Partial evidence “Award Winning Architecture and Urban Planning Studio based in Chicago” Source: RevenueBase Database · checked Sep 23, 2026
14	Wright Heerema Architects	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	29 contacts →
	Partial evidence “Wright Heerema Architects is an architectural firm that provides integrated master planning, programming, architecture and interior design services.” Source: RevenueBase Database · checked Sep 23, 2026
15	Space Architects Planners	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	18 contacts →
	Partial evidence “SPACE Architects + Planners is an architecture & planning company based out of Chicago Illinois and Scottsdale Arizona.” Source: RevenueBase Database · checked Sep 23, 2026
16	Senga Architects INC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	17 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 23, 2026
17	Atul Karkhanis Architects LTD	Indirect evidence	Chicago, United StatesHQ checked Sep 23, 2026	1-10	15 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 23, 2026
18	EN Masse Architecture And Design	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	13 contacts →
	Partial evidence “En Masse Architecture and Design, LTD is a full-service architectural practice focused on custom residential and design-focused commercial and institutional projects.” Source: RevenueBase Database · checked Sep 23, 2026
19	Smng A LTD	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	1-10	13 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 23, 2026
20	Hirsch MPG LLC	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	13 contacts →
	Indirect evidence “Starting January 1, 2018, Hirsch Associates LLC has become Hirsch MPG, welcoming Andrew Myren AIA, Richard Parks AIA and David Genc AIA as partners of the firm.” Source: RevenueBase Database · checked Sep 23, 2026
21	Garnett Architects, Pllc	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	11 contacts →
	Partial evidence “Architecture \| Interiors \| Strategic Planning A Unique Perspective Our business is structured differently, so we think differently: Gone is the assembly line process of the large…” Source: RevenueBase Database · checked Sep 23, 2026
22	EAA	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	10 contacts →
	Partial evidence “Established in 1991, Earles Architects and Associates (EAA) is a full-service architectural design firm offering a wide range of architectural, interior design and planning…” Source: RevenueBase Database · checked Sep 23, 2026
23	EXO Surfaces	Partial evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	11-50	9 contacts →
	Partial evidence “We are architects, designers, and engineers, focused on creating high-quality facades that bring architectural plans to life.” Source: RevenueBase Database · checked Sep 23, 2026
24	Klio Systems, INC	Strong evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	1-10	9 contacts →
	Strong evidence “We are a IT Products & Services company headquartered in Chicago IL focused on managed IT & software engineering services.” Source: RevenueBase Database · checked Sep 23, 2026
25	On Point Design Build	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 23, 2026	1-10	8 contacts →
	Indirect evidence “At ON POINT Design Build, we believe that a well-designed office is the hallmark of a solid practice.” Source: RevenueBase Database · checked Sep 23, 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: architecture software IT services. 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 architecture software IT services.
Partial evidence: Its own public description names part of architecture software IT services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name architecture software IT services. 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 121 architecture software IT services based in Chicago, United States

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Architecture software IT services based in Chicago, United States at a glance

As of Sep 23, 2026

57.3%Verified-email coverage

12.4Average contacts per company

1-10Median size (employees)

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 121 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 architecture software IT services, 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 “architecture software IT services”. 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 architecture software IT services), 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 architecture software IT services, 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, 858 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 23, 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.

Architecture software IT services 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 architecture software IT services, 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 architecture software IT services are there based in Chicago, United States?

RevenueBase identified 121 architecture software IT services 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?

Lamar Johnson Collaborative, headquartered in Chicago, tops this list with the largest team on record.

Which city in the United States has the most architecture software IT services?

New York leads the United States with 378 headquartered companies, followed by Los Angeles (133) and Houston (126). Chicago has 121.

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 858 verified decision-maker contacts tracked across these 121 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 23, 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.