Company lists · Data refreshed September 2026

Top 25 Design consulting firms based in the United States

Name: Design consulting firms based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 24,505 companies tracked

RevenueBase identified 24,505 design consulting firms headquartered in the United States as of September 2026 and tracks 255,640 professional contacts across them, including 110,358 with verified work emails and 102,303 with mobile numbers. New York is the largest hub.

This list covers design consulting firms headquartered in the 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 29, 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 29, 2026 86% judged on-target in blind review

24,505Companies

255,640Contacts tracked

110,358Verified emails

102,303Mobile numbers

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The 25 largest design consulting firms based in the United States

Ranked by team size

Top 25 of 24,505 design consulting firms based in the United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to design consulting 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	Kimley-Horn	Strong evidence	Raleigh, NC, United StatesHQ checked Sep 29, 2026	5,001-10,000	10,117 contacts →
	Strong evidence “Kimley-Horn is one of the nation’s premier planning and design consulting firms.” Source: RevenueBase Database · checked Sep 29, 2026
2	WSP In The U.S	Indirect evidence	New York, NY, United StatesHQ checked Sep 29, 2026	10001+	9,318 contacts →
	Indirect evidence “What if you could shape built and natural environments – and the future of those that use them?” Source: RevenueBase Database · checked Sep 29, 2026
3	Kearney	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	5,001-10,000	6,978 contacts →
	Partial evidence “As one of the original firms, we’ve never lost sight of the fact that consulting is a people business.” Source: RevenueBase Database · checked Sep 29, 2026
4	Accenture Strategy & Consulting	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	5,001-10,000	5,514 contacts →
	Partial evidence “Accenture Strategy combines deep industry expertise, advanced analytics capabilities and human-led design methodologies that enable clients to act with speed and confidence.” Source: RevenueBase Database · checked Sep 29, 2026
5	Perkins&will	Partial evidence	Chicago, IL, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,958 contacts →
	Partial evidence “Since 1935, we’ve believed that design has the power to make the world a better, more beautiful place.” Source: RevenueBase Database · checked Sep 29, 2026
6	DLR Group	Partial evidence	30 Offices, MN, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,992 contacts →
	Partial evidence “DLR Group is an integrated design firm delivering architecture, engineering, interiors, planning, and building optimization for new construction, renovation, and adaptive reuse.” Source: RevenueBase Database · checked Sep 29, 2026
7	Smithgroup	Partial evidence	Detroit, MI, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,849 contacts →
	Partial evidence “SmithGroup is an award-winning, multi-national integrated design firm that employs research, data, advanced technologies and design thinking to help clients solve their greatest…” Source: RevenueBase Database · checked Sep 29, 2026
8	Cannondesign	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,660 contacts →
	Partial evidence “CannonDesign is a different kind of design firm, where architecture, strategy, experience, innovation and social good converge to create meaningful impact.” Source: RevenueBase Database · checked Sep 29, 2026
9	MCA	Partial evidence	Westport, CT, United StatesHQ checked Sep 29, 2026	n/a	1,650 contacts →
	Partial evidence “MCAworks is a strategic marketing consulting firm passionately dedicated to helping our clients accelerate and sustain business growth.” Source: RevenueBase Database · checked Sep 29, 2026
10	IA Interior Architects	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	501-1,000	1,584 contacts →
	Partial evidence “Celebrating 40 years of visionary design and innovation, IA Interior Architects is the first global architecture firm focused exclusively on interiors.” Source: RevenueBase Database · checked Sep 29, 2026
11	Corgan	Partial evidence	Dallas, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,414 contacts →
	Partial evidence “Corgan is an employee-owned architecture and design firm with 22 locations and more than 1,300 team members globally.” Source: RevenueBase Database · checked Sep 29, 2026
12	Davey Resource Group, INC	Partial evidence	Kent, OH, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,395 contacts →
	Partial evidence “Davey Resource Group, Inc.(DRG) provides innovative consulting and field services that support utility infrastructure and environmental stewardship.” Source: RevenueBase Database · checked Sep 29, 2026
13	Ardurra	Indirect evidence	Miami, FL, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,260 contacts →
	Indirect evidence “Expertly balancing experience and innovation to deliver unique solutions to public and private clients.” Source: RevenueBase Database · checked Sep 29, 2026
14	IDEO	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	201-500	1,208 contacts →
	Partial evidence “IDEO (pronounced “EYE-dee-oh”) is a global design consultancy helping the world’s most audacious dreamers create braver tomorrows.” Source: RevenueBase Database · checked Sep 29, 2026
15	PAGE	Partial evidence	Washington, DC, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,191 contacts →
	Partial evidence “Performance by Design.” Source: RevenueBase Database · checked Sep 29, 2026
16	OLA	Strong evidence	Austin, TX, United StatesHQ checked Sep 29, 2026	n/a	1,145 contacts →
	Strong evidence “OLA Sustainability, LLC OLA Sustainability is a consulting firm that focuses on integrating sustainable practices into commercial and multifamily design projects.” Source: RevenueBase Database · checked Sep 29, 2026
17	Ware Malcomb	Partial evidence	International Design Firm, United StatesHQ checked Sep 29, 2026	501-1,000	992 contacts →
	Partial evidence “Established in 1972, Ware Malcomb is a dynamic, forward-thinking design firm offering streamlined architecture, interior design, branding, and engineering services across the…” Source: RevenueBase Database · checked Sep 29, 2026
18	PBK	Strong evidence	Houston, TX, United StatesHQ checked Sep 29, 2026	1,001-5,000	892 contacts →
	Strong evidence “PBK is an award-winning architecture, engineering and consulting practice that has been a leader in design solutions for education, healthcare, corporate, government and…” Source: RevenueBase Database · checked Sep 29, 2026
19	The Vertex Companies LLC	Partial evidence	New York, NY, United StatesHQ checked Sep 29, 2026	501-1,000	765 contacts →
	Partial evidence “The Vertex Companies, LLC is a global consulting firm that provides strategic advisory, project management, and dispute resolution services for organizations that face complex…” Source: RevenueBase Database · checked Sep 29, 2026
20	Lucas Group	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 29, 2026	10001+	756 contacts →
	Partial evidence “Ultimate Minds is a professional consulting and marketing firm dedicated to empowering businesses, nonprofits, and startups with smart, affordable, and results-driven solutions.” Source: RevenueBase Database · checked Sep 29, 2026
21	M3 Engineering & Technology Corp	Partial evidence	Tucson, AZ, United StatesHQ checked Sep 29, 2026	501-1,000	707 contacts →
	Partial evidence “M3 is a privately held full service design firm.” Source: RevenueBase Database · checked Sep 29, 2026
22	H2m Architects Engineers	Strong evidence	Melville, NY, United StatesHQ checked Sep 29, 2026	501-1,000	692 contacts →
	Strong evidence “About H2M H2M architects + engineers is a multi-disciplinary professional consulting and design firm, proud of its long history of client service and consistent ability to meet…” Source: RevenueBase Database · checked Sep 29, 2026
23	Prophet	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 29, 2026	501-1,000	661 contacts →
	Partial evidence “Prophet is the Uncommon Growth Company-accelerating impact for business and marketing leaders through consulting, experience, and creative services.” Source: RevenueBase Database · checked Sep 29, 2026
24	LEO A Daly	Indirect evidence	Omaha, NE, United StatesHQ checked Sep 29, 2026	501-1,000	656 contacts →
	Indirect evidence “Industry-Leading.” Source: RevenueBase Database · checked Sep 29, 2026
25	Farnsworth Group, INC	Partial evidence	Normal, IL, United StatesHQ checked Sep 29, 2026	501-1,000	654 contacts →
	Partial evidence “Farnsworth Group is a leading employee-owned full-service design firm, with 650-plus professionals across the United States.” Source: RevenueBase Database · checked Sep 29, 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: design consulting 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 design consulting firms.
Partial evidence: Its own public description names part of design consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name design consulting 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 24,505 design consulting firms based in the United States

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Design consulting firms based in the United States at a glance

As of Sep 29, 2026

43.2%Verified-email coverage

40.0%Mobile-number coverage

10.4Average contacts per company

1-10Median size (employees)

7.0%Largest-city concentration · New York

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

18,916

11-50

4,554

51-200

793

201-500

119

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 31.0d

60,0180–30

76,99431–60

4,21561–90

5890–180

891180+

Company record updated

Median 91.0d

00–30

83,33431–60

71,96861–90

154,62890–180

17,488180+

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 design consulting 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 the United States whose own description of what they do matches “design consulting 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 design consulting 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 design consulting firms, and records with no verified work email. Companies headquartered outside United States 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, 110,358 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 29, 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.

Design consulting firms by metro

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 design consulting 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 design consulting firms are there based in the United States?

RevenueBase identified 24,505 design consulting firms headquartered in the 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?

Kimley-Horn, headquartered in Raleigh, tops this list with the largest team on record.

Which city has the most design consulting firms?

New York leads with 1713 headquartered companies, followed by Los Angeles (776) and Chicago (610).

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 110,358 verified decision-maker contacts tracked across these 24,505 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 29, 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.