Company lists · Data refreshed September 2026

Top 24 Public interest design firms based in Irvine, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 33 companies tracked

RevenueBase identified 33 public interest design firms headquartered in Irvine, United States as of September 2026 and tracks 2,127 professional contacts across them, including 1,153 with verified work emails. New York is the largest hub.

This list covers public interest design firms headquartered in Irvine, 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

33Companies

2,127Contacts tracked

1,153Verified emails

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The 24 largest public interest design firms based in Irvine, United States

Ranked by team size

Top 24 of 33 public interest design firms based in Irvine, 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 interest 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	Lpa, INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	501-1,000	728 contacts →
	Partial evidence “Since LPA was founded in 1965, it's been our mission to deliver timeless, sustainable designs that benefit the environment, generate lasting value, enrich the human experience and…” Source: RevenueBase Database · checked Sep 20, 2026
2	KTGY	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	201-500	461 contacts →
	Partial evidence “Design Lives at KTGY.” Source: RevenueBase Database · checked Sep 20, 2026
3	RBF Consulting, A Company Of Michael Baker International	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1,001-5,000	176 contacts →
	Partial evidence “RBF Consulting, a Company of Michael Baker International, LLC, is one of the Nation's leading civil engineering, design, planning, surveying and construction management firms…” Source: RevenueBase Database · checked Sep 20, 2026
4	WHA Architects Planners Designers	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	140 contacts →
	Partial evidence “Original, relevant designs that work in the real world.” Source: RevenueBase Database · checked Sep 20, 2026
5	TCA Architects, INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	112 contacts →
	Partial evidence “Inspired by cultural narrative and evolutionary design, TCA Architects are dedicated to creating experiences that champion community and promote forward-thinking change.” Source: RevenueBase Database · checked Sep 20, 2026
6	MVE Partners, INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	111 contacts →
	Partial evidence “Established in 1974, MVE + Partners (MVE) is one of the country’s most innovative and respected design and planning firms encompassing a 100-person team of architects, designers…” Source: RevenueBase Database · checked Sep 20, 2026
7	Bassenian Lagoni Architects	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	68 contacts →
	Partial evidence “Bassenian Lagoni is an award-winning architectural, planning and interior design firm involved with projects around the globe.” Source: RevenueBase Database · checked Sep 20, 2026
8	VA Consulting, Inc., NOW Stantec	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	51-200	60 contacts →
	Indirect evidence “VA Consulting has joined Stantec, an architecture and engineering firm with more than creative team members across North America and the world.” Source: RevenueBase Database · checked Sep 20, 2026
9	Danielian Associates Architects Planners	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	50 contacts →
	Indirect evidence “At Danielian, our roots in architecture and planning run deep.” Source: RevenueBase Database · checked Sep 20, 2026
10	Westgroup Designs	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	44 contacts →
	Partial evidence “Westgroup Designs (WD) is an award-winning comprehensive Architecture, Planning, Interior Design and Branding firm headquartered in Irvine, California, with both National and…” Source: RevenueBase Database · checked Sep 20, 2026
11	Robert Hidey Architects	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	30 contacts →
	Partial evidence “The mission of Robert Hidey Architects is to offer a complete relationship with clients that address their goals by providing a superior level of timeless architectural designs…” Source: RevenueBase Database · checked Sep 20, 2026
12	Hpa, INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	29 contacts →
	Partial evidence “HPA, Inc, is a multi-disciplined design corporation that offers services in architecture, planning, and interiors to institutions, corporations, and developers throughout the…” Source: RevenueBase Database · checked Sep 20, 2026
13	TD Architects, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1-10	12 contacts →
	Indirect evidence “ABOUT US TD Architects, Inc.” Source: RevenueBase Database · checked Sep 20, 2026
14	GAA Architects, INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	10 contacts →
	Partial evidence “Established in 1978, and under new ownership since 2005, GAA Architects is an architecture, planning, and interior design firm uniquely qualified to design and master plan office…” Source: RevenueBase Database · checked Sep 20, 2026
15	STK A, Architectural Firm	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1-10	9 contacts →
	Partial evidence “STK :a implements economical and functional values into the design first.” Source: RevenueBase Database · checked Sep 20, 2026
16	ONE Nine Architecture	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	9 contacts →
	Partial evidence “ONE NINE ARCHITECTURE was created in order to focus a percentage of work to non-profit architecture and design projects of all types.” Source: RevenueBase Database · checked Sep 20, 2026
17	CHD International	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1-10	9 contacts →
	Indirect evidence “CHD International is a full service architecture and engineering firm.” Source: RevenueBase Database · checked Sep 20, 2026
18	Hestia Atelier	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	9 contacts →
	Indirect evidence “At Hestia Atelier each project starts with a thorough interview with our client to establish all the parameters of the project.” Source: RevenueBase Database · checked Sep 20, 2026
19	Carlile Coatsworth Architects	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	8 contacts →
	Partial evidence “Carlile Coatsworth Architects, an Orange County based architectural design and consulting firm, is a leader in architectural design across multiple industries.” Source: RevenueBase Database · checked Sep 20, 2026
20	Knitter Partners International	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	8 contacts →
	Indirect evidence “Knitter Partners International (KPI) is a full service Architectural and Planning firm established in 1980.” Source: RevenueBase Database · checked Sep 20, 2026
21	Adams Streeter Civil Engineers, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	11-50	6 contacts →
	Indirect evidence “Adams-Streeter is Southern California’s most trusted civil engineering firm offering a wide-range of services based around bringing communities together and increasing overall…” Source: RevenueBase Database · checked Sep 20, 2026
22	DKY Architects	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1-10	6 contacts →
	Partial evidence “We strive to design buildings and spaces that are creative, noteworthy, and innovative design solutions incorporating the latest building technology, materials, and systems.” Source: RevenueBase Database · checked Sep 20, 2026
23	Southwest Design Studio, INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1-10	3 contacts →
	Partial evidence “At Southwest Design Group we design buildings that are beautiful, efficient and sustainable.” Source: RevenueBase Database · checked Sep 20, 2026
24	The Design Collectiv	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 20, 2026	1-10	2 contacts →
	Indirect evidence 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 interest 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 interest design firms.
Partial evidence: Its own public description names part of public interest 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 interest 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 24 of 33 public interest design firms based in Irvine, United States

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Public interest design firms based in Irvine, United States at a glance

As of Sep 20, 2026

54.2%Verified-email coverage

64.5Average contacts per company

11-50Median size (employees)

2181.8%Largest-city concentration · New York

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 Irvine, so it is reported there. Company counts and contact totals on this page are exact for Irvine, over 33 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 interest 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 Irvine, United States whose own description of what they do matches “public interest 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 interest 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 interest design firms, and records with no verified work email. Companies headquartered outside Irvine 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, 1,153 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 interest 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 public interest 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 interest design firms are there based in Irvine, United States?

RevenueBase identified 33 public interest design firms headquartered in Irvine, 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?

Lpa, INC, headquartered in Irvine, tops this list with the largest team on record.

Which city has the most public interest design firms?

New York leads with 720 headquartered companies, followed by Los Angeles (290) and Chicago (236).

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 1,153 verified decision-maker contacts tracked across these 33 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.