Company lists · Data refreshed September 2026

Top 25 Environmental design firms based in Los Angeles, United States

Name: Environmental design firms based in Los Angeles, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 272 companies tracked

RevenueBase identified 272 environmental design firms headquartered in Los Angeles, United States as of September 2026 and tracks 3,047 professional contacts across them, including 1,413 with verified work emails. New York is the largest hub.

This list covers environmental design firms headquartered in Los Angeles, 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 19, 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 19, 2026 86% judged on-target in blind review

272Companies

3,047Contacts tracked

1,413Verified emails

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The 25 largest environmental design firms based in Los Angeles, United States

Ranked by team size

Top 25 of 272 environmental design firms based in Los Angeles, United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to environmental 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	Psomas	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	501-1,000	748 contacts →
	Indirect evidence “Our award-winning projects are produced through innovation, creativity, and technical expertise.” Source: RevenueBase Database · checked Sep 19, 2026
2	Steinberg Hart	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	51-200	188 contacts →
	Strong evidence “For 70 years, Steinberg Hart has been shaping environments and creating inspiring places through an idea driven, results-oriented approach to design.” Source: RevenueBase Database · checked Sep 19, 2026
3	AC Martin	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	51-200	153 contacts →
	Strong evidence “AC Martin is a California-based architecture, planning, interior architecture and research firm that uses an integrated design approach to create enduring environments for the…” Source: RevenueBase Database · checked Sep 19, 2026
4	JERDE	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	51-200	104 contacts →
	Partial evidence “JERDE is a global group of innovative pioneers, architects, landscapers, urban planners, and strategists with a collective commitment to design beyond the ordinary.” Source: RevenueBase Database · checked Sep 19, 2026
5	Lehrer Architects	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	11-50	96 contacts →
	Indirect evidence “Michael B.” Source: RevenueBase Database · checked Sep 19, 2026
6	Valerio Architects	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	51-200	82 contacts →
	Indirect evidence “Founded in 1994 by Niccolo Valerio, Valerio Architects Inc.” Source: RevenueBase Database · checked Sep 19, 2026
7	KAA Design Group	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	11-50	78 contacts →
	Partial evidence “Based in Los Angeles, KAA Design Group is an award-winning, high-end residential design firm.” Source: RevenueBase Database · checked Sep 19, 2026
8	Nadel Architects	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	51-200	75 contacts →
	Partial evidence “As a leading Los Angeles architectural firm with over 50 years of experience, we offer comprehensive design and planning services specializing in retail revitalization…” Source: RevenueBase Database · checked Sep 19, 2026
9	Gruen Associates	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	51-200	73 contacts →
	Indirect evidence “Since 1946, Gruen Associates succeeds as one of Los Angeles’ best known legacy firms with a deep portfolio of landmark projects.” Source: RevenueBase Database · checked Sep 19, 2026
10	Studio-Mla	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	11-50	68 contacts →
	Partial evidence “Studio-MLA is a design studio that integrates landscape architecture, urban design, and planning to create places that inspire human connection, unite communities, and restore…” Source: RevenueBase Database · checked Sep 19, 2026
11	DCM	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	n/a	64 contacts →
	Partial evidence “Architecture and Design Our Office is led by 3 partners Jeff Dotterweich, Cynthia Carlson and Tiemo Mehner.” Source: RevenueBase Database · checked Sep 19, 2026
12	JGM	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	51-200	47 contacts →
	Partial evidence “JGM has offered a comprehensive array of design and construction related services to public and private sector clients for over 40 years.” Source: RevenueBase Database · checked Sep 19, 2026
13	Johnson Fain	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	51-200	45 contacts →
	Partial evidence “During the past 25 years of professional experience in the United States and overseas, Johnson Fain has established itself as an architecture, planning and interior design firm…” Source: RevenueBase Database · checked Sep 19, 2026
14	Wolcott Architecture	Strong evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	11-50	37 contacts →
	Strong evidence “Wolcott Architecture is an innovative design firm that focuses on developing impactful and functional interior environments, resulting in remarkable client experiences.” Source: RevenueBase Database · checked Sep 19, 2026
15	Studio Shamshiri	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	11-50	35 contacts →
	Partial evidence “Studio Shamshiri is a multidisciplinary design firm.” Source: RevenueBase Database · checked Sep 19, 2026
16	Avenue Interior Design	Partial evidence	Los Angeles, United StatesHQ checked Sep 19, 2026	11-50	34 contacts →
	Partial evidence “Andrea DeRosa & Ashley Manhan first came together in 2005, when they quickly recognized in each other a similar philosophy, ambition, and passion for design.” Source: RevenueBase Database · checked Sep 19, 2026
17	TNI Group	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	11-50	27 contacts →
	Partial evidence “The Next Idea Group is a Los Angeles based established professional design and architecture company with 22 years of experience and a proven track record.” Source: RevenueBase Database · checked Sep 19, 2026
18	Omgivning Architecture Interiors	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	11-50	25 contacts →
	Indirect evidence “At Omgivning, we breathe new life into urban spaces.” Source: RevenueBase Database · checked Sep 19, 2026
19	The Standard Design Group Nurseries	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	11-50	22 contacts →
	Partial evidence “The Standard Design Group originated as a team of landscape designer professionals along with a motivated sales staff and teamed up with 3rd generation work ethic delivery and…” Source: RevenueBase Database · checked Sep 19, 2026
20	Salt Landscape Architects	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	11-50	21 contacts →
	Partial evidence “SALT Landscape Architects is a Los Angeles-based design studio that creates enduring, engaging, and innovative landscapes at a range of scales.” Source: RevenueBase Database · checked Sep 19, 2026
21	RELM	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	11-50	20 contacts →
	Indirect evidence “Realms play a consequential role in city life.” Source: RevenueBase Database · checked Sep 19, 2026
22	Fluidity Design Consultants	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	11-50	19 contacts →
	Partial evidence “Founded in 2002, Fluidity Design Consultants is a leading edge, Los Angeles-based water feature design and engineering firm with an international practice.” Source: RevenueBase Database · checked Sep 19, 2026
23	AUX Architecture	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	11-50	18 contacts →
	Partial evidence “Founded in 2008, AUX Architecture designs the future for people, institutions, and communities.” Source: RevenueBase Database · checked Sep 19, 2026
24	Worksmart	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	11-50	18 contacts →
	Partial evidence “We are a team of passionate, talented professionals that believe intelligent, beautifully designed spaces inspire people.” Source: RevenueBase Database · checked Sep 19, 2026
25	Martyn Lawrence Bullard	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 19, 2026	11-50	18 contacts →
	Partial evidence “Martyn Lawrence Bullard is a multi-award winning Los Angeles-based interior designer renowned for his broad range of styles and eclectic, yet sophisticated and inviting interiors.” Source: RevenueBase Database · checked Sep 19, 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: environmental 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 environmental design firms.
Partial evidence: Its own public description names part of environmental design firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name environmental 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 272 environmental design firms based in Los Angeles, United States

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Environmental design firms based in Los Angeles, United States at a glance

As of Sep 19, 2026

46.4%Verified-email coverage

11.2Average contacts per company

1-10Median size (employees)

203.3%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

185

11-50

51-200

501-1,000

Email recency for this list is measured across the whole United States list rather than for Los Angeles, so it is reported there. Company counts and contact totals on this page are exact for Los Angeles, over 272 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 environmental 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 Los Angeles, United States whose own description of what they do matches “environmental 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 environmental 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 environmental design firms, and records with no verified work email. Companies headquartered outside Los Angeles 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, 1,413 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 19, 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.

Environmental 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 environmental 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 environmental design firms are there based in Los Angeles, United States?

RevenueBase identified 272 environmental design firms headquartered in Los Angeles, 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?

Psomas, headquartered in Los Angeles, tops this list with the largest team on record.

Which city has the most environmental design firms?

New York leads with 553 headquartered companies, followed by Los Angeles (272) and Chicago (205).

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 1,413 verified decision-maker contacts tracked across these 272 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 19, 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.