Company lists · Data refreshed September 2026

Top 25 Architectural consulting firms based in Los Angeles, United States

Name: Architectural consulting 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 28, 2026 410 companies tracked

RevenueBase identified 410 architectural consulting firms headquartered in Los Angeles, United States as of September 2026 and tracks 3,514 professional contacts across them, including 1,522 with verified work emails. Across the United States, New York is the largest hub for this category (1,109 companies); Los Angeles follows with 410.

This list covers architectural consulting 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 28, 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 28, 2026 86% judged on-target in blind review

410Companies

3,514Contacts tracked

1,522Verified emails

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The 25 largest architectural consulting firms based in Los Angeles, United States

Ranked by team size

Top 25 of 410 architectural consulting firms based in Los Angeles, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to architectural 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	Steinberg Hart	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	51-200	188 contacts →
	Indirect 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 28, 2026
2	CO Architects	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	51-200	175 contacts →
	Partial evidence “Los Angeles-based CO Architects is nationally recognized for architectural planning, programming and design in the higher education, science & technology, civic and healthcare…” Source: RevenueBase Database · checked Sep 28, 2026
3	AC Martin	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	51-200	153 contacts →
	Partial 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 28, 2026
4	Marmol Radziner	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	51-200	144 contacts →
	Partial evidence “Established in 1989, Marmol Radziner is an award-winning Los Angeles-based design-build architecture and construction firm that integrates architectural design with a full range…” Source: RevenueBase Database · checked Sep 28, 2026
5	John A. Martin & Associates, INC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	51-200	132 contacts →
	Indirect evidence “Established in 1953, John A.” Source: RevenueBase Database · checked Sep 28, 2026
6	Lehrer Architects	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	11-50	96 contacts →
	Indirect evidence “Michael B.” Source: RevenueBase Database · checked Sep 28, 2026
7	Saiful Bouquet Structural Engineers	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	51-200	88 contacts →
	Indirect evidence “Saiful Bouquet is an award winning and innovative structural engineering firm that looks beyond the traditional boundaries of structural engineering, in order to provide…” Source: RevenueBase Database · checked Sep 28, 2026
8	Valerio Architects	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	51-200	82 contacts →
	Indirect evidence “Founded in 1994 by Niccolo Valerio, Valerio Architects Inc.” Source: RevenueBase Database · checked Sep 28, 2026
9	KAA Design Group	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	11-50	78 contacts →
	Indirect evidence “Based in Los Angeles, KAA Design Group is an award-winning, high-end residential design firm.” Source: RevenueBase Database · checked Sep 28, 2026
10	Nadel Architects	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 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 28, 2026
11	Home Front Build	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	11-50	75 contacts →
	Indirect evidence “Home Front is a design/build construction company specializing in green construction and preservation.” Source: RevenueBase Database · checked Sep 28, 2026
12	Gruen Associates	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 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 28, 2026
13	DCM	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 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 28, 2026
14	JGM	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	51-200	47 contacts →
	Indirect 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 28, 2026
15	Johnson Fain	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 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 28, 2026
16	Wolcott Architecture	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	11-50	37 contacts →
	Partial 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 28, 2026
17	Charlap Hyman & Herrero	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	11-50	30 contacts →
	Partial evidence “Charlap Hyman & Herrero is a Los Angeles / New York / Mexico City-based architecture and design firm that takes a fully integrated approach to conceptualizing and executing spaces…” Source: RevenueBase Database · checked Sep 28, 2026
18	Verdical Group	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	11-50	29 contacts →
	Partial evidence “Established in 2012, Verdical Group has developed a nationally known brand and industry leading reputation as a sustainability consulting firm focused on decarbonizing the built…” Source: RevenueBase Database · checked Sep 28, 2026
19	Yazdani Studio Of Cannondesign	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	11-50	29 contacts →
	Indirect evidence “The Yazdani Studio is comprised of creative thinkers who share a commitment to pushing the boundaries of design, from refining concepts of sustainability to the application of…” Source: RevenueBase Database · checked Sep 28, 2026
20	TNI Group	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 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 28, 2026
21	Omgivning Architecture Interiors	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	11-50	25 contacts →
	Indirect evidence “At Omgivning, we breathe new life into urban spaces.” Source: RevenueBase Database · checked Sep 28, 2026
22	Houck Construction, INC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	11-50	24 contacts →
	Indirect evidence “Houck Construction has been a leader in luxury residential and commercial construction in Southern California for over 25 years.” Source: RevenueBase Database · checked Sep 28, 2026
23	Woods Dangaran Architects	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	11-50	21 contacts →
	Partial evidence “Many firms describe their work as “transformative”-architecture as an accomplished fact.” Source: RevenueBase Database · checked Sep 28, 2026
24	Sean O'connor Lighting	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	11-50	20 contacts →
	Partial evidence “Sean O'Connor Lighting provides full service architectural lighting design and consultation services to local and international clients.” Source: RevenueBase Database · checked Sep 28, 2026
25	Letter Four, INC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	1-10	20 contacts →
	Indirect evidence “LETTER FOUR is a full service design-build firm.” Source: RevenueBase Database · checked Sep 28, 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: architectural 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 architectural consulting firms.
Partial evidence: Its own public description names part of architectural consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name architectural 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 410 architectural consulting firms based in Los Angeles, United States

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Architectural consulting firms based in Los Angeles, United States at a glance

As of Sep 28, 2026

43.3%Verified-email coverage

8.6Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

289

11-50

51-200

201-500

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 410 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 architectural 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 Los Angeles, United States whose own description of what they do matches “architectural 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 architectural 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 architectural consulting 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, 1,522 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 28, 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.

Architectural 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 architectural 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 architectural consulting firms are there based in Los Angeles, United States?

RevenueBase identified 410 architectural consulting 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?

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

Which city in the United States has the most architectural consulting firms?

New York leads the United States with 1,109 headquartered companies, followed by Los Angeles (410) and Chicago (367).

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 1,522 verified decision-maker contacts tracked across these 410 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 28, 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.