Company lists · Data refreshed September 2026
Top 25 Water efficiency consultants based in the United States
RevenueBase identified 390 company matches for water efficiency consultants associated with the United States as of September 2026 and tracks 5,941 professional contacts across them, including 3,260 with verified work emails. Denver is the largest hub.
This list covers company matches for water efficiency consultants associated with the 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 September 22, 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.
The 25 largest water efficiency consultants based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,100 contacts → | ||||
Exact match “As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 2 | 375 contacts → | ||||
Exact match “P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 3 | 251 contacts → | ||||
Exact match “Chemsearch FE’s mission is simple-to help facilities save water, energy and reduce operating costs.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 4 | 214 contacts → | ||||
Exact match “PEG presents a comprehensive capacity for the evaluation and understanding of a broad base of energy and environmental sustainability related programs, policies and initiatives.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 5 | 143 contacts → | ||||
Exact match “Apex, a trusted leader in water and process management, delivers integrated solutions that empower agricultural, commercial, and industrial customers across the U.S.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 6 | 121 contacts → | ||||
Exact match “Michaels Energy is a veteran-owned energy consulting firm that exists to help businesses minimize waste and maximize value.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 7 | 97 contacts → | ||||
Exact match “In 1998, I started kW Engineering as a two-person firm with a singular vision: to become the leading technical experts at saving money in buildings by saving energy and water.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 8 | 94 contacts → | ||||
Exact match “LRE Water is now Spheros Environmental.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 9 | 81 contacts → | ||||
Exact match “Founded by Bill Cutler in 1974, Niagara Conservation Corporation is a privately-held, leading manufacturer of water- and energy-conservation products & services.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 10 | 79 contacts → | ||||
Exact match “Larry Walker Associates (LWA) is a privately owned firm headquartered in Davis, California, with offices in Berkeley, Yreka, Santa Monica, Ventura, San Diego, and Seattle, WA.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 11 | 69 contacts → | ||||
Exact match “At Spectrum, our mission is simple: to provide smarter, more efficient, and sustainable water solutions.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 12 | 66 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 13 | 55 contacts → | ||||
Exact match “Kemco Systems, a CECO Environmental Brand, designs and manufactures energy and water conservation systems for Water Reuse/Recycle, Wastewater Treatment, Wastewater Filtration…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 14 | 47 contacts → | ||||
Exact match “NCS is an experienced water and wastewater engineering consulting firm with offices in Arizona, Maryland, Nevada, New Mexico and California.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 15 | 43 contacts → | ||||
Exact match “Commercial Green Solutions** is a long-established and respected Energy Consultant dedicated to helping clients: Dramatically reduce energy usage Lower energy spend Improve…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 16 | 37 contacts → | ||||
Exact match “GKY is one of Virginia’s largest consulting groups dedicated to water resources and environmental sciences.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 17 | 35 contacts → | ||||
Exact match “Our solutions are tailored to every client because we have the experience to identify unique opportunities in every ecosystem we study.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 18 | 35 contacts → | ||||
Exact match “PG Environmental (PG) is an environmental consulting firm offering specialized technical expertise to federal and state agencies tasked with protecting and restoring our nation’s…” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 19 | 34 contacts → | ||||
Exact match “NV5 Net Zero is a leading global energy efficiency consultancy.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 20 | 33 contacts → | ||||
Exact match “Water Management, Inc.(WMI) is well established in the field of water efficiency and conservation and has developed a successful track record since its founding in 1980.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 21 | 33 contacts → | ||||
Exact match “Conserving our Natural Resources for Future Generations." WaterWise Consulting Inc.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 22 | 30 contacts → | ||||
Exact match “Ecotope has provided sustainable building design consulting and engineering services in the Pacific Northwest for over 40 years.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 23 | 29 contacts → | ||||
Exact match “SBW Consulting, Inc.(SBW) is a leader in energy and water efficiency.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 24 | 28 contacts → | ||||
Exact match “Since 1993, Davids Engineering, Inc.” Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase | |||||
| 25 | 27 contacts → | ||||
Exact match “Stetson Engineers is an environmental consulting firm which works with Department of Justice, Department of Defense, Department of Interior, Tribal, private, municipal, county…” Recorded in the RevenueBase company graph · Sep 22, 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 “water efficiency consultants”. 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 25 of 390 water efficiency consultants based in the United States
See the full list, filter by size, metro and specialty, and access 3,260 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Water efficiency consultants based in the United States at a glance
As of Sep 22, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 390 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 the United States whose business descriptions match “water efficiency consultants” 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 3,260 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 September 22, 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.
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 “water efficiency consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many water efficiency consultants are there based in the United States?
RevenueBase identified 390 company matches for water efficiency consultants associated with the United States as of September 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?
Hazen And Sawyer tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most water efficiency consultants?
Denver leads with 8 company records, followed by Austin (6) and Los Angeles (6).
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 3,260 professional contacts with verified work emails tracked across these 390 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 September 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 390 water efficiency consultants based in the United States. Start with a free account, no credit card.
Download this list →Related lists
Water efficiency consultants by geography
- Water efficiency consultants based in Australia
- Water efficiency consultants based in Brazil
- Water efficiency consultants based in Canada
- Water efficiency consultants based in France
- Water efficiency consultants based in Germany
- Water efficiency consultants based in India
- Water efficiency consultants based in South Africa
- Water efficiency consultants based in Spain
- Water efficiency consultants based in the United Kingdom
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.
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Water efficiency consultants based in Australia
- Water efficiency consultants based in Brazil
- Water efficiency consultants based in Canada
- Water efficiency consultants based in France
- Water efficiency consultants based in Germany
- Water efficiency consultants based in India
Company intelligence · public preview
Top 25 water efficiency consultants based in the United States
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 390 matching company records for water efficiency consultants based in the United States, with 5,941 tracked contacts and 3,260 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 22, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 water efficiency consultants based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Hazen And Sawyerhazenandsawyer.comHQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 2,100 contacts → |
“As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  P2sp2sinc.comHQ: Long Beach, CA, United StatesReported employees: 201-500 | Long Beach, CA, United States | 201-500 | Exact match | 375 contacts → |
“P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Chemsearch FEchemsearchfe.com HQ: Irving, TX, United StatesReported employees: 1,001-5,000 | Irving, TX, United States | 1,001-5,000 | Exact match | 251 contacts → |
“Chemsearch FE’s mission is simple-to help facilities save water, energy and reduce operating costs.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  PEGpegenv.comHQ: Fairfax, VA, United StatesReported employees: 201-500 | Fairfax, VA, United States | 201-500 | Exact match | 214 contacts → |
“PEG presents a comprehensive capacity for the evaluation and understanding of a broad base of energy and environmental sustainability related programs, policies and initiatives.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Apex Water And Processteamapex.comHQ: St Michael, MN, United StatesReported employees: 201-500 | St Michael, MN, United States | 201-500 | Exact match | 143 contacts → |
“Apex, a trusted leader in water and process management, delivers integrated solutions that empower agricultural, commercial, and industrial customers across the U.S.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Michaels Energy- An Inc. 5000 Companymichaelsenergy.comHQ: La Crosse, WI, United StatesReported employees: 51-200 | La Crosse, WI, United States | 51-200 | Exact match | 121 contacts → |
“Michaels Energy is a veteran-owned energy consulting firm that exists to help businesses minimize waste and maximize value.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  KW Engineeringkw-engineering.comHQ: Oakland, CA, United StatesReported employees: 51-200 | Oakland, CA, United States | 51-200 | Exact match | 97 contacts → |
“In 1998, I started kW Engineering as a two-person firm with a singular vision: to become the leading technical experts at saving money in buildings by saving energy and water.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  LRE Water A Spheros Environmental Companylrewater.comHQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 94 contacts → |
“LRE Water is now Spheros Environmental.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Niagara Conservationniagaracorp.com HQ: Flower Mound, TX, United StatesReported employees: 51-200 | Flower Mound, TX, United States | 51-200 | Exact match | 81 contacts → |
“Founded by Bill Cutler in 1974, Niagara Conservation Corporation is a privately-held, leading manufacturer of water- and energy-conservation products & services.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Larry Walker Associateslwa.comHQ: Davis, CA, United StatesReported employees: 51-200 | Davis, CA, United States | 51-200 | Exact match | 79 contacts → |
“Larry Walker Associates (LWA) is a privately owned firm headquartered in Davis, California, with offices in Berkeley, Yreka, Santa Monica, Ventura, San Diego, and Seattle, WA.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Spectrumspectrumwater.comHQ: Geismar, LA, United StatesReported employees: 51-200 | Geismar, LA, United States | 51-200 | Exact match | 69 contacts → |
“At Spectrum, our mission is simple: to provide smarter, more efficient, and sustainable water solutions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Homeyer Consulting Services, INChomeyer.com HQ: Tewksbury, MA, United StatesReported employees: 11-50 | Tewksbury, MA, United States | 11-50 | Exact match | 66 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 |  Kemco Systemskemcosystems.comHQ: Clearwater, FL, United StatesReported employees: 51-200 | Clearwater, FL, United States | 51-200 | Exact match | 55 contacts → |
“Kemco Systems, a CECO Environmental Brand, designs and manufactures energy and water conservation systems for Water Reuse/Recycle, Wastewater Treatment, Wastewater Filtration…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  NCS Engineersncseng.comHQ: Phoenix, AZ, United StatesReported employees: 51-200 | Phoenix, AZ, United States | 51-200 | Exact match | 47 contacts → |
“NCS is an experienced water and wastewater engineering consulting firm with offices in Arizona, Maryland, Nevada, New Mexico and California.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Commercial Green Solutionscommercialgreensolutions.comHQ: Charlotte, NC, United StatesReported employees: 51-200 | Charlotte, NC, United States | 51-200 | Exact match | 43 contacts → |
“Commercial Green Solutions** is a long-established and respected Energy Consultant dedicated to helping clients: Dramatically reduce energy usage Lower energy spend Improve…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | GKYgky.com HQ: Chantilly, VA, United StatesReported employees: 11-50 | Chantilly, VA, United States | 11-50 | Exact match | 37 contacts → |
“GKY is one of Virginia’s largest consulting groups dedicated to water resources and environmental sciences.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  MLJ Environmentalmljenvironmental.comHQ: Sacramento, CA, United StatesReported employees: 11-50 | Sacramento, CA, United States | 11-50 | Exact match | 35 contacts → |
“Our solutions are tailored to every client because we have the experience to identify unique opportunities in every ecosystem we study.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | PG Environmentalpgenv.com HQ: Golden, CO, United StatesReported employees: 11-50 | Golden, CO, United States | 11-50 | Exact match | 35 contacts → |
“PG Environmental (PG) is an environmental consulting firm offering specialized technical expertise to federal and state agencies tasked with protecting and restoring our nation’s…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Nv5 NET Zeronv5.comHQ: Hollywood, FL, United StatesReported employees: 11-50 | Hollywood, FL, United States | 11-50 | Exact match | 34 contacts → |
“NV5 Net Zero is a leading global energy efficiency consultancy.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Water Management INCwatermgt.com HQ: Alexandria, VA, United StatesReported employees: 11-50 | Alexandria, VA, United States | 11-50 | Exact match | 33 contacts → |
“Water Management, Inc.(WMI) is well established in the field of water efficiency and conservation and has developed a successful track record since its founding in 1980.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Waterwise Consulting, INCwaterwise-consulting.com HQ: Glendora, CA, United StatesReported employees: 11-50 | Glendora, CA, United States | 11-50 | Exact match | 33 contacts → |
“Conserving our Natural Resources for Future Generations." WaterWise Consulting Inc.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Ecotope, INCecotope.comHQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 30 contacts → |
“Ecotope has provided sustainable building design consulting and engineering services in the Pacific Northwest for over 40 years.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | SBW Consulting, INCsbwconsulting.com HQ: Bellevue, WA, United StatesReported employees: 11-50 | Bellevue, WA, United States | 11-50 | Exact match | 29 contacts → |
“SBW Consulting, Inc.(SBW) is a leader in energy and water efficiency.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Davids Engineering, INCdavidsengineering.comHQ: Davis, CA, United StatesReported employees: 11-50 | Davis, CA, United States | 11-50 | Exact match | 28 contacts → |
“Since 1993, Davids Engineering, Inc.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Stetson Engineers INCstetsonengineers.com HQ: San Rafael, CA, United StatesReported employees: 51-200 | San Rafael, CA, United States | 51-200 | Exact match | 27 contacts → |
“Stetson Engineers is an environmental consulting firm which works with Department of Justice, Department of Defense, Department of Interior, Tribal, private, municipal, county…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 390 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Water efficiency consultants: dataset insights
September 22, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
388 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 390 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 22, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for water efficiency consultants?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many water efficiency consultants did RevenueBase find based in the United States?
The saved snapshot records 390 matching company records, 5,941 tracked contacts and 3,260 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 22, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Water efficiency consultants by geography
- Water efficiency consultants based in Australia
- Water efficiency consultants based in Brazil
- Water efficiency consultants based in Canada
- Water efficiency consultants based in France
- Water efficiency consultants based in Germany
- Water efficiency consultants based in India
- Water efficiency consultants based in South Africa
- Water efficiency consultants based in Spain
- Water efficiency consultants based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 water efficiency consultants based in the United States. Snapshot: September 22, 2026. https://revenuebase.ai/companies/water-efficiency-consultants/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Water efficiency consultants based in Australia
- Water efficiency consultants based in Brazil
- Water efficiency consultants based in Canada
- Water efficiency consultants based in France
- Water efficiency consultants based in Germany
- Water efficiency consultants based in India
Company intelligence · public preview
Top 25 water efficiency consultants based in the United States
RevenueBase records 390 matching company records for water efficiency consultants based in the United States, with 5,941 tracked contacts and 3,260 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 22, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 water efficiency consultants based in the United States
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Hazen And Sawyerhazenandsawyer.com HQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 2,100 contacts → |
“As Hazen marks 75 years, we celebrate a legacy of absolute commitment to our clients while delivering the best technical work available anywhere.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | P2sp2sinc.com HQ: Long Beach, CA, United StatesReported employees: 201-500 | Long Beach, CA, United States | 201-500 | Exact match | 375 contacts → |
“P2S has brought forward-thinking, sustainable engineering solutions to California, the Pacific Northwest, and beyond, for over 30 years.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Chemsearch FEchemsearchfe.com HQ: Irving, TX, United StatesReported employees: 1,001-5,000 | Irving, TX, United States | 1,001-5,000 | Exact match | 251 contacts → |
“Chemsearch FE’s mission is simple-to help facilities save water, energy and reduce operating costs.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | PEGpegenv.com HQ: Fairfax, VA, United StatesReported employees: 201-500 | Fairfax, VA, United States | 201-500 | Exact match | 214 contacts → |
“PEG presents a comprehensive capacity for the evaluation and understanding of a broad base of energy and environmental sustainability related programs, policies and initiatives.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Apex Water And Processteamapex.com HQ: St Michael, MN, United StatesReported employees: 201-500 | St Michael, MN, United States | 201-500 | Exact match | 143 contacts → |
“Apex, a trusted leader in water and process management, delivers integrated solutions that empower agricultural, commercial, and industrial customers across the U.S.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Michaels Energy- An Inc. 5000 Companymichaelsenergy.com HQ: La Crosse, WI, United StatesReported employees: 51-200 | La Crosse, WI, United States | 51-200 | Exact match | 121 contacts → |
“Michaels Energy is a veteran-owned energy consulting firm that exists to help businesses minimize waste and maximize value.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | KW Engineeringkw-engineering.com HQ: Oakland, CA, United StatesReported employees: 51-200 | Oakland, CA, United States | 51-200 | Exact match | 97 contacts → |
“In 1998, I started kW Engineering as a two-person firm with a singular vision: to become the leading technical experts at saving money in buildings by saving energy and water.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | LRE Water A Spheros Environmental Companylrewater.com HQ: Denver, CO, United StatesReported employees: 51-200 | Denver, CO, United States | 51-200 | Exact match | 94 contacts → |
“LRE Water is now Spheros Environmental.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Niagara Conservationniagaracorp.com HQ: Flower Mound, TX, United StatesReported employees: 51-200 | Flower Mound, TX, United States | 51-200 | Exact match | 81 contacts → |
“Founded by Bill Cutler in 1974, Niagara Conservation Corporation is a privately-held, leading manufacturer of water- and energy-conservation products & services.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Larry Walker Associateslwa.com HQ: Davis, CA, United StatesReported employees: 51-200 | Davis, CA, United States | 51-200 | Exact match | 79 contacts → |
“Larry Walker Associates (LWA) is a privately owned firm headquartered in Davis, California, with offices in Berkeley, Yreka, Santa Monica, Ventura, San Diego, and Seattle, WA.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Spectrumspectrumwater.com HQ: Geismar, LA, United StatesReported employees: 51-200 | Geismar, LA, United States | 51-200 | Exact match | 69 contacts → |
“At Spectrum, our mission is simple: to provide smarter, more efficient, and sustainable water solutions.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Homeyer Consulting Services, INChomeyer.com HQ: Tewksbury, MA, United StatesReported employees: 11-50 | Tewksbury, MA, United States | 11-50 | Exact match | 66 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 13 | Kemco Systemskemcosystems.com HQ: Clearwater, FL, United StatesReported employees: 51-200 | Clearwater, FL, United States | 51-200 | Exact match | 55 contacts → |
“Kemco Systems, a CECO Environmental Brand, designs and manufactures energy and water conservation systems for Water Reuse/Recycle, Wastewater Treatment, Wastewater Filtration…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | NCS Engineersncseng.com HQ: Phoenix, AZ, United StatesReported employees: 51-200 | Phoenix, AZ, United States | 51-200 | Exact match | 47 contacts → |
“NCS is an experienced water and wastewater engineering consulting firm with offices in Arizona, Maryland, Nevada, New Mexico and California.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Commercial Green Solutionscommercialgreensolutions.com HQ: Charlotte, NC, United StatesReported employees: 51-200 | Charlotte, NC, United States | 51-200 | Exact match | 43 contacts → |
“Commercial Green Solutions** is a long-established and respected Energy Consultant dedicated to helping clients: Dramatically reduce energy usage Lower energy spend Improve…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | GKYgky.com HQ: Chantilly, VA, United StatesReported employees: 11-50 | Chantilly, VA, United States | 11-50 | Exact match | 37 contacts → |
“GKY is one of Virginia’s largest consulting groups dedicated to water resources and environmental sciences.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | MLJ Environmentalmljenvironmental.com HQ: Sacramento, CA, United StatesReported employees: 11-50 | Sacramento, CA, United States | 11-50 | Exact match | 35 contacts → |
“Our solutions are tailored to every client because we have the experience to identify unique opportunities in every ecosystem we study.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | PG Environmentalpgenv.com HQ: Golden, CO, United StatesReported employees: 11-50 | Golden, CO, United States | 11-50 | Exact match | 35 contacts → |
“PG Environmental (PG) is an environmental consulting firm offering specialized technical expertise to federal and state agencies tasked with protecting and restoring our nation’s…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Nv5 NET Zeronv5.com HQ: Hollywood, FL, United StatesReported employees: 11-50 | Hollywood, FL, United States | 11-50 | Exact match | 34 contacts → |
“NV5 Net Zero is a leading global energy efficiency consultancy.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Water Management INCwatermgt.com HQ: Alexandria, VA, United StatesReported employees: 11-50 | Alexandria, VA, United States | 11-50 | Exact match | 33 contacts → |
“Water Management, Inc.(WMI) is well established in the field of water efficiency and conservation and has developed a successful track record since its founding in 1980.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Waterwise Consulting, INCwaterwise-consulting.com HQ: Glendora, CA, United StatesReported employees: 11-50 | Glendora, CA, United States | 11-50 | Exact match | 33 contacts → |
“Conserving our Natural Resources for Future Generations." WaterWise Consulting Inc.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Ecotope, INCecotope.com HQ: Seattle, WA, United StatesReported employees: 11-50 | Seattle, WA, United States | 11-50 | Exact match | 30 contacts → |
“Ecotope has provided sustainable building design consulting and engineering services in the Pacific Northwest for over 40 years.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | SBW Consulting, INCsbwconsulting.com HQ: Bellevue, WA, United StatesReported employees: 11-50 | Bellevue, WA, United States | 11-50 | Exact match | 29 contacts → |
“SBW Consulting, Inc.(SBW) is a leader in energy and water efficiency.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Davids Engineering, INCdavidsengineering.com HQ: Davis, CA, United StatesReported employees: 11-50 | Davis, CA, United States | 11-50 | Exact match | 28 contacts → |
“Since 1993, Davids Engineering, Inc.” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Stetson Engineers INCstetsonengineers.com HQ: San Rafael, CA, United StatesReported employees: 51-200 | San Rafael, CA, United States | 51-200 | Exact match | 27 contacts → |
“Stetson Engineers is an environmental consulting firm which works with Department of Justice, Department of Defense, Department of Interior, Tribal, private, municipal, county…” Recorded description excerpt · September 22, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 390 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Water efficiency consultants: dataset insights
September 22, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
388 records in the displayed employee bands.
2 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 390 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 22, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Questions about this company list
What does Exact match mean for water efficiency consultants?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many water efficiency consultants did RevenueBase find based in the United States?
The saved snapshot records 390 matching company records, 5,941 tracked contacts and 3,260 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 22, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Water efficiency consultants by geography
- Water efficiency consultants based in Australia
- Water efficiency consultants based in Brazil
- Water efficiency consultants based in Canada
- Water efficiency consultants based in France
- Water efficiency consultants based in Germany
- Water efficiency consultants based in India
- Water efficiency consultants based in South Africa
- Water efficiency consultants based in Spain
- Water efficiency consultants based in the United Kingdom
Cite this list
RevenueBase Data Team. Top 25 water efficiency consultants based in the United States. Snapshot: September 22, 2026. https://revenuebase.ai/companies/water-efficiency-consultants/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Water efficiency consultants based in Australia
- Water efficiency consultants based in Brazil
- Water efficiency consultants based in Canada
- Water efficiency consultants based in France
- Water efficiency consultants based in Germany
- Water efficiency consultants based in India