Company lists · Data refreshed September 2026

Top 25 Public space design firms based in the United States

Name: Public space design 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 20, 2026 7,827 companies tracked

RevenueBase identified 7,827 public space design firms headquartered in the United States as of September 2026 and tracks 136,123 professional contacts across them, including 65,723 with verified work emails. New York is the largest hub.

This list covers public space design 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 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

7,827Companies

136,123Contacts tracked

65,723Verified emails

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The 25 largest public space design firms based in the United States

Ranked by team size

Top 25 of 7,827 public space design firms based in the United States, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to public space 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	Perkins&will	Partial evidence	Chicago, IL, United StatesHQ checked Sep 20, 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 20, 2026
2	DLR Group	Partial evidence	30 Offices, MN, United StatesHQ checked Sep 20, 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 20, 2026
3	Skidmore, Owings & Merrill SOM	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,967 contacts →
	Partial evidence “Skidmore, Owings & Merrill (SOM) is a global practice of architects, designers, engineers, and planners, responsible for some of the world’s most technically and environmentally…” Source: RevenueBase Database · checked Sep 20, 2026
4	Smithgroup	Partial evidence	Detroit, MI, United StatesHQ checked Sep 20, 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 20, 2026
5	Cannondesign	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 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 20, 2026
6	IA Interior Architects	Partial evidence	San Francisco, CA, United StatesHQ checked Sep 20, 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 20, 2026
7	HGA	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,543 contacts →
	Partial evidence “HGA is a national interdisciplinary design firm committed to making a positive, lasting impact for our clients and communities through research-based, holistic solutions.” Source: RevenueBase Database · checked Sep 20, 2026
8	BIG	Indirect evidence	Brooklyn, United StatesHQ checked Sep 20, 2026	501-1,000	1,540 contacts →
	Indirect evidence “BIG is a Copenhagen, New York, London, Barcelona, Shanghai, Los Angeles, Zurich, and Bhutan-based global architecture firm operating within the fields of architecture, urbanism…” Source: RevenueBase Database · checked Sep 20, 2026
9	Corgan	Partial evidence	Dallas, TX, United StatesHQ checked Sep 20, 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 20, 2026
10	Perkins Eastman	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	1,001-5,000	1,083 contacts →
	Partial evidence “Perkins Eastman is a global design practice founded on the belief that design has the power to enhance people’s lives and safeguard the environment.” Source: RevenueBase Database · checked Sep 20, 2026
11	Ware Malcomb	Partial evidence	International Design Firm, United StatesHQ checked Sep 20, 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 20, 2026
12	KPF	Partial evidence	New York, NY, United StatesHQ checked Sep 20, 2026	501-1,000	970 contacts →
	Partial evidence “KPF is dedicated to transforming cities through impactful design, collaborating closely with the world’s most forward-thinking clients to create high performing, carefully crafted…” Source: RevenueBase Database · checked Sep 20, 2026
13	Nbbj Design	Partial evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	501-1,000	808 contacts →
	Partial evidence “NBBJ is an ideas-driven architecture and design firm dedicated to creating connected communities, healthier buildings and a more resilient environment.” Source: RevenueBase Database · checked Sep 20, 2026
14	LEO A Daly	Indirect evidence	Omaha, NE, United StatesHQ checked Sep 20, 2026	501-1,000	656 contacts →
	Indirect evidence “Industry-Leading.” Source: RevenueBase Database · checked Sep 20, 2026
15	Watg And Wimberly Interiors	Indirect evidence	Tustin, CA, United StatesHQ checked Sep 20, 2026	201-500	646 contacts →
	Indirect evidence “Advisory \| Master Planning \| Architecture \| Landscape Architecture \| Wimberly Interiors.” Source: RevenueBase Database · checked Sep 20, 2026
16	Cushing Terrell	Indirect evidence	Billings, MT, United StatesHQ checked Sep 20, 2026	201-500	618 contacts →
	Indirect evidence “Cushing Terrell was founded in 1938 by architects Ralph Cushing and Everett Terrell.” Source: RevenueBase Database · checked Sep 20, 2026
17	Architecture	Partial evidence	Troy, NY, United StatesHQ checked Sep 20, 2026	n/a	610 contacts →
	Partial evidence “architecture+ is a design and service-oriented architectural and planning firm located in Troy in New York's Capital Region.” Source: RevenueBase Database · checked Sep 20, 2026
18	Parkhill	Partial evidence	Lubbock, TX, United StatesHQ checked Sep 20, 2026	501-1,000	609 contacts →
	Partial evidence “We are a full-service design firm of extraordinary planners, designers, architects, and engineers.” Source: RevenueBase Database · checked Sep 20, 2026
19	Arquitectonica	Indirect evidence	Miami, FL, United StatesHQ checked Sep 20, 2026	501-1,000	603 contacts →
	Indirect evidence “Based in Miami and with offices in New York, Los Angeles, Paris, Hong Kong, Shanghai, Manila, Dubai, Lima and Sao Paulo, Arquitectonica is a major presence on the world…” Source: RevenueBase Database · checked Sep 20, 2026
20	HMC Architects	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 20, 2026	201-500	583 contacts →
	Strong evidence “Founded in 1940 with the purpose of anticipating community needs, HMC creates designs that positively impact communities-through healthcare, education, and civic spaces.” Source: RevenueBase Database · checked Sep 20, 2026
21	CPL	Indirect evidence	Fairport, NY, United StatesHQ checked Sep 20, 2026	501-1,000	574 contacts →
	Indirect evidence “Extraordinary projects are made from extraordinary relationships.” Source: RevenueBase Database · checked Sep 20, 2026
22	SWA	Partial evidence	Sausalito, CA, United StatesHQ checked Sep 20, 2026	201-500	559 contacts →
	Partial evidence “SWA is a global landscape architecture, planning, and urban design firm with eight independent studios across the U.S.” Source: RevenueBase Database · checked Sep 20, 2026
23	KLJ	Indirect evidence	Bismarck, ND, United StatesHQ checked Sep 20, 2026	501-1,000	539 contacts →
	Indirect evidence “Since the 1930s, KLJ has worked alongside communities and clients of all sizes, partnering with cities, counties, and developers – just to name a few.” Source: RevenueBase Database · checked Sep 20, 2026
24	Ls3p Associates LTD	Partial evidence	Charleston, SC, United StatesHQ checked Sep 20, 2026	201-500	530 contacts →
	Partial evidence “LS3P is an architecture, interiors, and planning firm celebrating more than 60 years of design excellence.” Source: RevenueBase Database · checked Sep 20, 2026
25	Mg2 Design	Partial evidence	Seattle, WA, United StatesHQ checked Sep 20, 2026	201-500	520 contacts →
	Partial evidence “MG2 is a global architecture, design, construction & branding studio.” 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: public space 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 public space design firms.
Partial evidence: Its own public description names part of public space design firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name public space 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 7,827 public space design firms based in the United States

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Public space design firms based in the United States at a glance

As of Sep 20, 2026

48.3%Verified-email coverage

17.4Average contacts per company

1-10Median size (employees)

8.8%Largest-city concentration · New York

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

5,073

11-50

2,181

51-200

449

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 7,827 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 public space 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 the United States whose own description of what they do matches “public space 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 public space 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 public space design 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, 65,723 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.

Public space design 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 public space 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 public space design firms are there based in the United States?

RevenueBase identified 7,827 public space design 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?

Perkins&will, headquartered in Chicago, tops this list with the largest team on record.

Which city has the most public space design firms?

New York leads with 686 headquartered companies, followed by Los Angeles (267) and San Francisco (187).

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 65,723 verified decision-maker contacts tracked across these 7,827 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.