Company lists · Data refreshed October 2026

Top 22 Conservation engineering firms based in Los Angeles, United States

Name: Conservation engineering 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 Oct 10, 2026 38 companies tracked

RevenueBase identified 38 company matches for conservation engineering firms associated with Los Angeles, United States as of October 2026 and tracks 1,346 professional contacts across them, including 540 with verified work emails. Across the United States, Houston is the largest hub for this category (132 companies); Los Angeles has 38.

This list covers company matches for conservation engineering firms associated with Los Angeles, United States, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 10, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 RevenueBase SmartSearch · Exact Recorded Oct 10, 2026 How this list was built

38Companies

1,346Contacts tracked

540Verified emails

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The 22 largest conservation engineering firms based in Los Angeles, United States

Ranked by team size

Top 22 of 38 company matches for conservation engineering firms based in Los Angeles, United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 10, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Psomas	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	501-1,000	769 contacts →
	Exact match “Our award-winning projects are produced through innovation, creativity, and technical expertise.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
2	JGM	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	51-200	52 contacts →
	Exact match “JGM has offered a comprehensive array of design and construction related services to public and private sector clients for over 40 years.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
3	Watearth	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	11-50	31 contacts →
	Exact match “Watearth, Inc.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
4	BA INC	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	11-50	17 contacts →
	Exact match “BA Inc.(DBE/MBE/SBE) has been in business for 11 years; established and incorporated in 2004 to provide professional engineering design services to public agencies for public…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
5	Impact Sciences	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	11-50	17 contacts →
	Exact match “Informing communities and creating a clear path to understanding are at the core of what we do at Impact Sciences.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
6	C2pm	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	11-50	17 contacts →
	Exact match “C2PM stands at the forefront of the construction consulting landscape, offering a full spectrum of program management, construction management, and specialized engineering…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
7	Kroner Environmental Services	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	11-50	10 contacts →
	Exact match “Kroner Environmental Services is a full service environmental engineering and consulting company headquartered in Los Angeles but with ongoing operations nationwide.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
8	DK Engineer, Corp	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	1-10	9 contacts →
	Exact match “DK Engineer, Corp (DKE) is a boutique civil engineering consulting firm that provides design and construction administration services for construction projects throughout Southern…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
9	EPD Consultants, INC	Exact match	Los Angeles, United StatesHQ recorded Oct 10, 2026	1-10	9 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
10	Khalifeh & Associates Inc, Consulting Engineers	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	11-50	6 contacts →
	Exact match “Khalifeh & Associates Inc, Consulting Engineers is a mechanical or industrial engineering company based out of 1625 W.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
11	Steiner Consulting INC	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	1-10	5 contacts →
	Exact match “Steiner Consulting, Inc.(SCI) is a heavy civil-engineering consulting firm specializing in driving Southern California infrastructure.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
12	ZILA	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	11-50	5 contacts →
	Exact match “Zila, is a Stormwater Management & Civil Engineering Co, which provides stormwater management and civil engineering related services including stormwater pollution prevention plan…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
13	Suenram & Associates, INC	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	11-50	4 contacts →
	Exact match “Suenram & Associates, Inc.(SAI) is a Los Angeles-based certified small business enterprise providing civil engineering design and consulting services for public agencies and…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
14	Harris Consulting Group	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	1-10	3 contacts →
	Exact match “Harris Consulting Group has established itself as one of the premier Construction Management and Consulting firms in the region.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
15	FLO Engineering INC	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	11-50	2 contacts →
	Exact match “At Flo Engineering, We work collaboratively with government agencies, private clients and the communities we serve, delivering honest, strategic, and timely solutions.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
16	Associated Consulting Civil & Environmental Services, INC	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	1-10	2 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
17	Alimo Architects INC	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	1-10	2 contacts →
	Exact match “LET'S MAKE ARCHITECTURE AFFORDABLE!” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
18	Optime Consulting Group	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	1-10	2 contacts →
	Exact match “With diverse expertise spanning a large spectrum of civil engineering, enabling us to tackle complex challenges with creativity and precision from concrete mixture development for…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
19	Trelos Engineering, INC	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	1-10	1 contacts →
	Exact match “Licensed in over 30 states, we are a professional engineering firm focusing in the following primary markets: telecommunications, residential/commercial, and transportation/heavy…” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
20	Atodatech LLC	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	1-10	1 contacts →
	Exact match “ATODATECH LLC is a chemical engineering consulting company based in Greater Los Angeles, CA.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
21	Foundation Forensics, LLC	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	1-10	1 contacts →
	Exact match “We provide professional engineering consulting services to businesses and litigation support services to legal firms in the United States.” Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase
22	Paragon Engineering & Management, LLC	Exact match	Los Angeles, CA, United StatesHQ recorded Oct 10, 2026	1-10	1 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 10, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “conservation engineering firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 22 of 38 conservation engineering firms based in Los Angeles, United States

See the full list, filter by size, metro and specialty, and access 540 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Conservation engineering firms based in Los Angeles, United States at a glance

As of Oct 10, 2026

40.1%Verified-email coverage

35.4Average contacts per company

1-10Median size (employees)

Oct 10, 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 Los Angeles, so it is reported there. Company counts and contact totals on this page are exact for Los Angeles, over 38 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with Los Angeles, United States whose business descriptions match “conservation engineering firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 540 professional contacts with verified work emails across the full matched dataset. 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 October 10, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Conservation engineering firms by metro in the United States

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “conservation engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many conservation engineering firms are there based in Los Angeles, United States?

RevenueBase identified 38 company matches for conservation engineering firms associated with Los Angeles, United States as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Psomas tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United States has the most conservation engineering firms?

Houston leads the United States with 132 company records, followed by New York (82) and Austin (75). Los Angeles has 38.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 540 professional contacts with verified work emails tracked across these 38 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 10, 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 SmartSearch, 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.