Company lists · Data refreshed September 2026

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

Name: Building 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 23, 2026 208 companies tracked

RevenueBase identified 208 building consulting firms headquartered in Los Angeles, United States as of September 2026 and tracks 1,756 professional contacts across them, including 547 with verified work emails. Across the United States, New York is the largest hub for this category (579 companies); Los Angeles has 208.

This list covers building 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 23, 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 23, 2026 86% judged on-target in blind review

208Companies

1,756Contacts tracked

547Verified emails

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

Ranked by team size

Top 25 of 208 building consulting firms based in Los Angeles, United States, ranked by team size, largest first. Data refreshed Sep 23, 2026. RevenueBase Smart Search rates how each company's information relates to building 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	PCM	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	n/a	211 contacts →
	Indirect evidence “Commercial Construction, CM/PM Services, General Contractor,” Source: RevenueBase Database · checked Sep 23, 2026
2	John A. Martin & Associates, INC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	51-200	132 contacts →
	Indirect evidence “Established in 1953, John A.” Source: RevenueBase Database · checked Sep 23, 2026
3	KCS West	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	51-200	95 contacts →
	Indirect evidence “With over 170 years of experience and over employees around the world, KCS West’s parent company, Kajima Corporation, is a global leader in construction services, architectural…” Source: RevenueBase Database · checked Sep 23, 2026
4	Saiful Bouquet Structural Engineers	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 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 23, 2026
5	DCM	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	n/a	64 contacts →
	Indirect evidence “Architecture and Design Our Office is led by 3 partners Jeff Dotterweich, Cynthia Carlson and Tiemo Mehner.” Source: RevenueBase Database · checked Sep 23, 2026
6	JGM	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 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 23, 2026
7	Phoenix Construction & Management - PCM	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	11-50	34 contacts →
	Indirect evidence “We are Phoenix Construction & Management (PCM).” Source: RevenueBase Database · checked Sep 23, 2026
8	Torres Construction Corporation	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	51-200	32 contacts →
	Indirect evidence “Torres Construction is an award winning Contractor with a wide range of experience in both commercial and industrial construction.” Source: RevenueBase Database · checked Sep 23, 2026
9	Lenax Construction Services, INC	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	51-200	29 contacts →
	Partial evidence “Since its inception in 1993, Lenax Construction Services, Inc.(LENAX) has provided quality construction management consulting services to a diverse range of engineering, design…” Source: RevenueBase Database · checked Sep 23, 2026
10	Nous Engineering	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	11-50	21 contacts →
	Indirect evidence “Nous Engineering is an innovative Structural Engineering firm based in Los Angeles.” Source: RevenueBase Database · checked Sep 23, 2026
11	Worksmart	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	11-50	18 contacts →
	Indirect evidence “We are a team of passionate, talented professionals that believe intelligent, beautifully designed spaces inspire people.” Source: RevenueBase Database · checked Sep 23, 2026
12	SPF Architects SPF A	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	11-50	17 contacts →
	Indirect evidence “Founded in 1988, SPF:a is a Los Angeles-based architecture firm specializing in clients and projects that require a high level of design sensitivity, technical expertise, and…” Source: RevenueBase Database · checked Sep 23, 2026
13	SRK Architects, INC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	11-50	17 contacts →
	Indirect evidence “Mission: Our single professional purpose is to deliver design excellence, every day for every project, sourced through strong, collaborative relationships with our clients.” Source: RevenueBase Database · checked Sep 23, 2026
14	The Tsui Group	Indirect evidence	Los Angeles, United StatesHQ checked Sep 23, 2026	11-50	16 contacts →
	Indirect evidence “PMCM firm focused on Program Management & Construction Management professional services.” Source: RevenueBase Database · checked Sep 23, 2026
15	Calasia Construction INC	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	11-50	14 contacts →
	Indirect evidence “It is our commitment to provide the best possible service to our customers within the most reasonable time schedule for a fair cost.” Source: RevenueBase Database · checked Sep 23, 2026
16	C2pm	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	11-50	14 contacts →
	Partial evidence “C2PM stands at the forefront of the construction consulting landscape, offering a full spectrum of program management, construction management, and specialized engineering…” Source: RevenueBase Database · checked Sep 23, 2026
17	Fort Hill Construction	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	51-200	13 contacts →
	Indirect evidence “Fort Hill Construction is a privately-held construction company founded in Boston Massachusetts in 1971.” Source: RevenueBase Database · checked Sep 23, 2026
18	Large Architecture	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	11-50	13 contacts →
	Indirect evidence “With a focus on creativity, environmentally sensitive design, proactive project management and sound technical skills, LARGE architecture (LRG) delivers unique design solutions…” Source: RevenueBase Database · checked Sep 23, 2026
19	Johnston Marklee	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	11-50	13 contacts →
	Indirect evidence “Johnston Marklee & Assoc is an Architecture and Planning company located in Los Angeles, California, United States.” Source: RevenueBase Database · checked Sep 23, 2026
20	Alloi Architecture Construction	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	1-10	13 contacts →
	Indirect evidence “Alloi Architecture + Construction is an independent design-build firm specializing in meticulously efficient and profoundly innovative solutions to contemporary residential and…” Source: RevenueBase Database · checked Sep 23, 2026
21	Loescher Meachem Architects	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	1-10	13 contacts →
	Partial evidence “Loescher Meachem Architects is an architecture and workplace consulting company.” Source: RevenueBase Database · checked Sep 23, 2026
22	Innodez	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	11-50	13 contacts →
	Indirect evidence “We are a design and engineering company with a passionate group of engineers that offers professional engineering design services for a range of clients in commercial and…” Source: RevenueBase Database · checked Sep 23, 2026
23	Mobbil INC	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	11-50	11 contacts →
	Partial evidence “Providing construction and consulting services.” Source: RevenueBase Database · checked Sep 23, 2026
24	Pica Sullivan Architects, LTD	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	11-50	10 contacts →
	Indirect evidence “Pica + Sullivan Architects, Ltd.” Source: RevenueBase Database · checked Sep 23, 2026
25	DK Engineer, Corp	Partial evidence	Los Angeles, CA, United StatesHQ checked Sep 23, 2026	1-10	9 contacts →
	Partial evidence “DK Engineer, Corp (DKE) is a boutique civil engineering consulting firm that provides design and construction administration services for construction projects throughout Southern…” Source: RevenueBase Database · checked Sep 23, 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: building 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 building consulting firms.
Partial evidence: Its own public description names part of building consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name building 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 208 building consulting firms based in Los Angeles, United States

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

As of Sep 23, 2026

31.2%Verified-email coverage

8.4Average contacts per company

1-10Median size (employees)

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

144

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 208 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 building 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 “building 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 building 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 building 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, 547 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 23, 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.

Building 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 building 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 building consulting firms are there based in Los Angeles, United States?

RevenueBase identified 208 building 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?

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

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

New York leads the United States with 579 headquartered companies, followed by Houston (299) and Chicago (211). Los Angeles has 208.

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 547 verified decision-maker contacts tracked across these 208 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 23, 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.