Company lists · Data refreshed September 2026

Top 24 Public space consulting firms based in Irvine, United States

Name: Public space consulting 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 29, 2026 33 companies tracked

RevenueBase identified 33 public space consulting firms headquartered in Irvine, United States as of September 2026 and tracks 1,900 professional contacts across them, including 917 with verified work emails. Across the United States, New York is the largest hub for this category (325 companies); Irvine has 33.

This list covers public space consulting 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 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

33Companies

1,900Contacts tracked

917Verified emails

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The 24 largest public space consulting firms based in Irvine, United States

Ranked by team size

Top 24 of 33 public space consulting firms based in Irvine, United States, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to public space 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	KTGY	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	201-500	461 contacts →
	Indirect evidence “Design Lives at KTGY.” Source: RevenueBase Database · checked Sep 29, 2026
2	LSA	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	201-500	332 contacts →
	Partial evidence “LSA is a diversified environmental, transportation, and community planning firm that evolved from a small consulting firm.” Source: RevenueBase Database · checked Sep 29, 2026
3	Interwest Consulting Group	Strong evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	201-500	221 contacts →
	Strong evidence “Interwest specializes in providing professional and consulting services to public agencies across California, Nevada, Colorado, and beyond.” Source: RevenueBase Database · checked Sep 29, 2026
4	RBF Consulting, A Company Of Michael Baker International	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 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 29, 2026
5	WHA Architects Planners Designers	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	140 contacts →
	Indirect evidence “Original, relevant designs that work in the real world.” Source: RevenueBase Database · checked Sep 29, 2026
6	MVE Partners, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	111 contacts →
	Indirect 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 29, 2026
7	Bassenian Lagoni Architects	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	68 contacts →
	Indirect evidence “Bassenian Lagoni is an award-winning architectural, planning and interior design firm involved with projects around the globe.” Source: RevenueBase Database · checked Sep 29, 2026
8	EPD Solutions, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	64 contacts →
	Indirect evidence “EPD was created to assist clients through the complex regulatory and interdisciplinary process required to bring projects to fruition in the most thoughtful manner.” Source: RevenueBase Database · checked Sep 29, 2026
9	VA Consulting, Inc., NOW Stantec	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	60 contacts →
	Partial 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 29, 2026
10	T&b Planning, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	39 contacts →
	Indirect evidence “T&B Planning provides due diligence, land use planning, entitlement, CEQA/NEPA compliance, development services, project management, and GIS services from our offices in Irvine…” Source: RevenueBase Database · checked Sep 29, 2026
11	Hpa, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	29 contacts →
	Indirect 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 29, 2026
12	SMS Architects	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	22 contacts →
	Partial evidence “SMS Architects is a full-service design firm providing architecture, master planning, interior architecture/design, space planning, programming, historical and adaptive reuse…” Source: RevenueBase Database · checked Sep 29, 2026
13	Lifescapes International INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	19 contacts →
	Indirect evidence “Beauty is good business.” Source: RevenueBase Database · checked Sep 29, 2026
14	The Galloway Group	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	1-10	17 contacts →
	Indirect evidence “The Challenges Facing the Land Development/Building Industry.” Source: RevenueBase Database · checked Sep 29, 2026
15	Brightview Design Group	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	51-200	17 contacts →
	Indirect evidence “BrightView Design Group (BVDG) is the landscape architecture and design practice within BrightView, the nation's largest integrated landscape services company.” Source: RevenueBase Database · checked Sep 29, 2026
16	Ridge Landscape Architects	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	15 contacts →
	Indirect evidence “Welcome to Ridge Landscape Architects WHO WE ARE EXPERIENCE RLA (Ridge Landscape Architects) is a professional landscape architectural firm that offers over 25 years of experience…” Source: RevenueBase Database · checked Sep 29, 2026
17	Tatsumi & Partners, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	15 contacts →
	Indirect evidence “Landscape Architecture - Urban Design - Visual Management” Source: RevenueBase Database · checked Sep 29, 2026
18	IMA Design	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	14 contacts →
	Partial evidence “ima creates exceptional spaces that give form and character to the landscape, providing distinctive artistry and economic value for our clients.” Source: RevenueBase Database · checked Sep 29, 2026
19	Land Concern	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	11 contacts →
	Indirect evidence “At Land Concern, our mission is to provide exceptional landscape architecture services for master-planned communities, commercial developments, and hospitality projects.” Source: RevenueBase Database · checked Sep 29, 2026
20	Lynn Capouya, Inc. Landscape Architects	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	10 contacts →
	Partial evidence “Lynn Capouya, Inc.(LCI) founded in 1979 is a full service landscape architectural design firm specializing in sustainable landscape design for both public and private market…” Source: RevenueBase Database · checked Sep 29, 2026
21	Kapstone Planning	Partial evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	1-10	10 contacts →
	Partial evidence “Urban planning and operations consulting firm based in Orange County, CA.” Source: RevenueBase Database · checked Sep 29, 2026
22	Knitter Partners International	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 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 29, 2026
23	Adams Streeter Civil Engineers, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 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 29, 2026
24	Synarc Studio	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 29, 2026	11-50	4 contacts →
	Indirect evidence “SynArc Studio offers an extensive range of services including Planning, Architecture, Interior Design and Landscape Design.” 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: public space 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 public space consulting firms.
Partial evidence: Its own public description names part of public space consulting 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 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 24 of 33 public space consulting firms based in Irvine, United States

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Public space consulting firms based in Irvine, United States at a glance

As of Sep 29, 2026

48.3%Verified-email coverage

57.6Average contacts per company

11-50Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

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 space 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 Irvine, United States whose own description of what they do matches “public space 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 public space 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 public space consulting 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, 917 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.

Public space consulting 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 space 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 public space consulting firms are there based in Irvine, United States?

RevenueBase identified 33 public space consulting 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?

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

Which city in the United States has the most public space consulting firms?

New York leads the United States with 325 headquartered companies, followed by Chicago (118) and Los Angeles (114). Irvine has 33.

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 917 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 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.