Company lists · Data refreshed November 2026
Top 25 Water discharge permitting consultants worldwide
RevenueBase identified 729 company matches for water discharge permitting consultants worldwide as of November 2026 and tracks 5,601 professional contacts across them, including 2,297 with verified work emails. The United States is the largest market and Houston the largest hub.
This list covers company matches for water discharge permitting consultants worldwide, 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 November 6, 2026. Country and city lists for water discharge permitting consultants follow the table.
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 discharge permitting consultants worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 170 contacts → | ||||
Exact match “Herrera Environmental Consultants is a leading engineering and scientific consulting firm focused on restoration, water, and sustainable development.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 165 contacts → | ||||
Exact match “Since the passage of original environmental legislation nearly four decades ago, both private and public industry have turned to Mostardi Platt for guidance in complying with air…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 151 contacts → | ||||
Exact match “AQUALIS is the national leader in water management, compliance and engineering, helping businesses meet complex water regulations while protecting long-term infrastructure.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 142 contacts → | ||||
Exact match “Environmental insight for complex real-world decisions Spheros Environmental helps clients make clear, defensible decisions in complex environments.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 134 contacts → | ||||
Exact match “CMS Environmental Solutions is a stormwater compliance consultant providing NOI permitting, development, dewatering planning, site inspections, and custom stormwater management…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 128 contacts → | ||||
Exact match “America's #1 Stormwater Consultants Earthworks Environmental, LLC provides top of the line storm water pollution prevention (SWPP/NPDES), erosion control and dust control…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 109 contacts → | ||||
Exact match “Public agencies and businesses have been relying on Chambers Group to keep them in compliance with applicable federal, state, and/or local environmental laws, regulations, and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 106 contacts → | ||||
Exact match “Yorke Engineering, LLC (Yorke) was founded in 1996 and specializes in air quality, waste, storm water and industrial hygiene/safety services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 95 contacts → | ||||
Exact match “Established in 1969, Skelly and Loy is a privately owned, mid-sized corporation with 6 Mid-Atlantic offices.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 95 contacts → | ||||
Exact match “EEC Environmental is a national environmental consulting firm that specializes in water, wastewater, stormwater, regulatory compliance, safety, and assessment and remediation of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 94 contacts → | ||||
Exact match “Engineering a Sustainable Future, One Project at a Time Founded in Israel in 1996, DHV MED has become a leader in environmental engineering and consulting.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 81 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 79 contacts → | ||||
Exact match “As a leader in the environmental compliance services industry, AARC does more than just meeting the needs of clients today.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 73 contacts → | ||||
Exact match “We deliver quality solutions with integrity and expertise, every time.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 63 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 63 contacts → | ||||
Exact match “1998 yılından günümüze çevre koruma konusunda faaliyet gösteren Artemis Arıtım uluslararası bilgi ve tecrübeye sahip mühendisleri ve akademik danışmanlarıyla birçok başarılı…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 51 contacts → | ||||
Exact match “EcolSciences, Inc, was founded in 1973 in response to the growing need for responsible environmental planning, as mandated by NEPA, The National Environmental Policy Act.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 48 contacts → | ||||
Exact match “We Are a Full-Service Environmental Consultancy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 45 contacts → | ||||
Exact match “Contracted environmental services focused on freshwater resources.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 44 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 41 contacts → | ||||
Exact match “Founded in 2011, Sequoia is a California-based, woman-owned, small, and disadvantaged business (WBE | SBE | DBE) that provides environmental consulting services to public agencies…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 38 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 37 contacts → | ||||
Exact match “Catalyst Environmental Solutions Corporation is a full service environmental consulting firm, specializing in the energy sector, land development and remediation, and water…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 36 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 · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 36 contacts → | ||||
Exact match “A water resources and environmental engineering consulting firm based in the San Francisco Bay Area, with a second office location in Seattle, WA.” Recorded in the RevenueBase company graph · Nov 6, 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 discharge permitting 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 729 water discharge permitting consultants worldwide
See the full list, filter by size, metro and specialty, and access 2,297 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Water discharge permitting consultants worldwide at a glance
As of Nov 6, 2026Companies by employee count
Email recency is reported on each country list linked below.
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.
- Coverage
- Every country. Country and city lists for water discharge permitting consultants are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “water discharge permitting 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. 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 2,297 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 November 6, 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.
Water discharge permitting consultants by location
1 lists · largest firstEvery Water discharge permitting consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 discharge permitting consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many water discharge permitting consultants are there worldwide?
RevenueBase identified 729 company matches for water discharge permitting consultants worldwide as of November 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?
Herrera Environmental Consultants tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most water discharge permitting consultants?
The United States leads with 340 companies. Every water discharge permitting consultants list by country and city is linked on this page.
Which city has the most water discharge permitting consultants?
Houston leads with 8 company records, followed by Austin (7) and Tampa (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 2,297 professional contacts with verified work emails tracked across these 729 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 729 water discharge permitting consultants worldwide. Start with a free account, no credit card.
Download this list →Related lists
Browse the directory
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
Company intelligence · public preview
Top 25 water discharge permitting consultants worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 729 matching company records for water discharge permitting consultants worldwide, with 5,601 tracked contacts and 2,297 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: November 6, 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 discharge permitting consultants worldwide
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 |  Herrera Environmental Consultantsherrerainc.comHQ: Seattle, OR, United StatesReported employees: 51-200 | Seattle, OR, United States | 51-200 | Exact match | 170 contacts → |
“Herrera Environmental Consultants is a leading engineering and scientific consulting firm focused on restoration, water, and sustainable development.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Mostardi Plattmostardiplatt.comHQ: Elmhurst, IL, United StatesReported employees: 51-200 | Elmhurst, IL, United States | 51-200 | Exact match | 165 contacts → |
“Since the passage of original environmental legislation nearly four decades ago, both private and public industry have turned to Mostardi Platt for guidance in complying with air…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Aqualisaqualisco.comHQ: Morrisville, CO, United StatesReported employees: 501-1,000 | Morrisville, CO, United States | 501-1,000 | Exact match | 151 contacts → |
“AQUALIS is the national leader in water management, compliance and engineering, helping businesses meet complex water regulations while protecting long-term infrastructure.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Spheros Environmentalspherosenv.comHQ: Denver, WA, United StatesReported employees: 201-500 | Denver, WA, United States | 201-500 | Exact match | 142 contacts → |
“Environmental insight for complex real-world decisions Spheros Environmental helps clients make clear, defensible decisions in complex environments.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  CMS Environmental Solutionscmsenviro.comHQ: Greenwood Village, CO, United StatesReported employees: 51-200 | Greenwood Village, CO, United States | 51-200 | Exact match | 134 contacts → |
“CMS Environmental Solutions is a stormwater compliance consultant providing NOI permitting, development, dewatering planning, site inspections, and custom stormwater management…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Earthworks Environmental, LLCearthworksenv.comHQ: Phoenix, IL, United StatesReported employees: 51-200 | Phoenix, IL, United States | 51-200 | Exact match | 128 contacts → |
“America's #1 Stormwater Consultants Earthworks Environmental, LLC provides top of the line storm water pollution prevention (SWPP/NPDES), erosion control and dust control…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Chambers Group, INCchambersgroupinc.comHQ: Costa Mesa, CA, United StatesReported employees: 51-200 | Costa Mesa, CA, United States | 51-200 | Exact match | 109 contacts → |
“Public agencies and businesses have been relying on Chambers Group to keep them in compliance with applicable federal, state, and/or local environmental laws, regulations, and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Yorke Engineering, LLCyorkeengr.comHQ: San Juan Capistrano, CA, United StatesReported employees: 51-200 | San Juan Capistrano, CA, United States | 51-200 | Exact match | 106 contacts → |
“Yorke Engineering, LLC (Yorke) was founded in 1996 and specializes in air quality, waste, storm water and industrial hygiene/safety services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Skelly And Loy, Inc., A Terracon Companyskellyloy.comHQ: Harrisburg, MD, United StatesReported employees: 51-200 | Harrisburg, MD, United States | 51-200 | Exact match | 95 contacts → |
“Established in 1969, Skelly and Loy is a privately owned, mid-sized corporation with 6 Mid-Atlantic offices.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  EEC Environmentaleecenvironmental.comHQ: Orange, CA, United StatesReported employees: 11-50 | Orange, CA, United States | 11-50 | Exact match | 95 contacts → |
“EEC Environmental is a national environmental consulting firm that specializes in water, wastewater, stormwater, regulatory compliance, safety, and assessment and remediation of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Dhvmeddhvmed.comHQ: Kfar Saba, IsraelReported employees: 51-200 | Kfar Saba, Israel | 51-200 | Exact match | 94 contacts → |
“Engineering a Sustainable Future, One Project at a Time Founded in Israel in 1996, DHV MED has become a leader in environmental engineering and consulting.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Larry Walker Associateslwa.comHQ: Davis, CA, United StatesReported employees: 51-200 | Davis, CA, United States | 51-200 | Exact match | 81 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Aarc Environmentalaarcenv.comHQ: Houston, FL, United StatesReported employees: 51-200 | Houston, FL, United States | 51-200 | Exact match | 79 contacts → |
“As a leader in the environmental compliance services industry, AARC does more than just meeting the needs of clients today.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Cgrs INCcgrs.comHQ: Fort Collins, WA, United StatesReported employees: 51-200 | Fort Collins, WA, United States | 51-200 | Exact match | 73 contacts → |
“We deliver quality solutions with integrity and expertise, every time.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Bayland Consultants & Designers, INCbaylandinc.comHQ: Hanover, MD, United StatesReported employees: 11-50 | Hanover, MD, United States | 11-50 | Exact match | 63 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 |  Artemis Arıtımartemisaritim.comHQ: İstanbul, TürkiyeReported employees: 51-200 | İstanbul, Türkiye | 51-200 | Exact match | 63 contacts → |
“1998 yılından günümüze çevre koruma konusunda faaliyet gösteren Artemis Arıtım uluslararası bilgi ve tecrübeye sahip mühendisleri ve akademik danışmanlarıyla birçok başarılı…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Ecolsciences, INCecolsciences.comHQ: Rockaway, United StatesReported employees: 11-50 | Rockaway, United States | 11-50 | Exact match | 51 contacts → |
“EcolSciences, Inc, was founded in 1973 in response to the growing need for responsible environmental planning, as mandated by NEPA, The National Environmental Policy Act.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Enviroservices & Training Centergotoetc.comHQ: Honolulu, HI, United StatesReported employees: 51-200 | Honolulu, HI, United States | 51-200 | Exact match | 48 contacts → |
“We Are a Full-Service Environmental Consultancy.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Great Lakes Environmental Centerglec.comHQ: Traverse City, MI, United StatesReported employees: 51-200 | Traverse City, MI, United States | 51-200 | Exact match | 45 contacts → |
“Contracted environmental services focused on freshwater resources.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Sapphos Environmental, INCsapphosenvironmental.comHQ: Pasadena, CA, United StatesReported employees: 11-50 | Pasadena, CA, United States | 11-50 | Exact match | 44 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | Sequoia Ecological Consultingsequoiaeco.com HQ: Walnut Creek, CA, United StatesReported employees: 11-50 | Walnut Creek, CA, United States | 11-50 | Exact match | 41 contacts → |
“Founded in 2011, Sequoia is a California-based, woman-owned, small, and disadvantaged business (WBE | SBE | DBE) that provides environmental consulting services to public agencies…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  MLJ Environmentalmljenvironmental.comHQ: Sacramento, CA, United StatesReported employees: 11-50 | Sacramento, CA, United States | 11-50 | Exact match | 38 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Catalyst Environmental Solutions Corporationce.solutionsHQ: Santa Monica, CA, United StatesReported employees: 11-50 | Santa Monica, CA, United States | 11-50 | Exact match | 37 contacts → |
“Catalyst Environmental Solutions Corporation is a full service environmental consulting firm, specializing in the energy sector, land development and remediation, and water…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Stetson Engineers INCstetsonengineers.comHQ: San Rafael, OR, United StatesReported employees: 51-200 | San Rafael, OR, United States | 51-200 | Exact match | 36 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  SRT Consultantssrtconsultants.comHQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 36 contacts → |
“A water resources and environmental engineering consulting firm based in the San Francisco Bay Area, with a second office location in Seattle, WA.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 729 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Water discharge permitting consultants: dataset insights
November 6, 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
729 records in the displayed employee bands.
0 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 729 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: November 6, 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 ↗
Water discharge permitting consultants by location
1 lists · largest firstEvery Water discharge permitting consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for water discharge permitting 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 discharge permitting consultants did RevenueBase find worldwide?
The saved snapshot records 729 matching company records, 5,601 tracked contacts and 2,297 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: November 6, 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
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 water discharge permitting consultants worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/water-discharge-permitting-consultants.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 water discharge permitting consultants worldwide
RevenueBase records 729 matching company records for water discharge permitting consultants worldwide, with 5,601 tracked contacts and 2,297 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: November 6, 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 discharge permitting consultants worldwide
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 | Herrera Environmental Consultantsherrerainc.com HQ: Seattle, OR, United StatesReported employees: 51-200 | Seattle, OR, United States | 51-200 | Exact match | 170 contacts → |
“Herrera Environmental Consultants is a leading engineering and scientific consulting firm focused on restoration, water, and sustainable development.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Mostardi Plattmostardiplatt.com HQ: Elmhurst, IL, United StatesReported employees: 51-200 | Elmhurst, IL, United States | 51-200 | Exact match | 165 contacts → |
“Since the passage of original environmental legislation nearly four decades ago, both private and public industry have turned to Mostardi Platt for guidance in complying with air…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Aqualisaqualisco.com HQ: Morrisville, CO, United StatesReported employees: 501-1,000 | Morrisville, CO, United States | 501-1,000 | Exact match | 151 contacts → |
“AQUALIS is the national leader in water management, compliance and engineering, helping businesses meet complex water regulations while protecting long-term infrastructure.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Spheros Environmentalspherosenv.com HQ: Denver, WA, United StatesReported employees: 201-500 | Denver, WA, United States | 201-500 | Exact match | 142 contacts → |
“Environmental insight for complex real-world decisions Spheros Environmental helps clients make clear, defensible decisions in complex environments.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | CMS Environmental Solutionscmsenviro.com HQ: Greenwood Village, CO, United StatesReported employees: 51-200 | Greenwood Village, CO, United States | 51-200 | Exact match | 134 contacts → |
“CMS Environmental Solutions is a stormwater compliance consultant providing NOI permitting, development, dewatering planning, site inspections, and custom stormwater management…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Earthworks Environmental, LLCearthworksenv.com HQ: Phoenix, IL, United StatesReported employees: 51-200 | Phoenix, IL, United States | 51-200 | Exact match | 128 contacts → |
“America's #1 Stormwater Consultants Earthworks Environmental, LLC provides top of the line storm water pollution prevention (SWPP/NPDES), erosion control and dust control…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Chambers Group, INCchambersgroupinc.com HQ: Costa Mesa, CA, United StatesReported employees: 51-200 | Costa Mesa, CA, United States | 51-200 | Exact match | 109 contacts → |
“Public agencies and businesses have been relying on Chambers Group to keep them in compliance with applicable federal, state, and/or local environmental laws, regulations, and…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Yorke Engineering, LLCyorkeengr.com HQ: San Juan Capistrano, CA, United StatesReported employees: 51-200 | San Juan Capistrano, CA, United States | 51-200 | Exact match | 106 contacts → |
“Yorke Engineering, LLC (Yorke) was founded in 1996 and specializes in air quality, waste, storm water and industrial hygiene/safety services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Skelly And Loy, Inc., A Terracon Companyskellyloy.com HQ: Harrisburg, MD, United StatesReported employees: 51-200 | Harrisburg, MD, United States | 51-200 | Exact match | 95 contacts → |
“Established in 1969, Skelly and Loy is a privately owned, mid-sized corporation with 6 Mid-Atlantic offices.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | EEC Environmentaleecenvironmental.com HQ: Orange, CA, United StatesReported employees: 11-50 | Orange, CA, United States | 11-50 | Exact match | 95 contacts → |
“EEC Environmental is a national environmental consulting firm that specializes in water, wastewater, stormwater, regulatory compliance, safety, and assessment and remediation of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Dhvmeddhvmed.com HQ: Kfar Saba, IsraelReported employees: 51-200 | Kfar Saba, Israel | 51-200 | Exact match | 94 contacts → |
“Engineering a Sustainable Future, One Project at a Time Founded in Israel in 1996, DHV MED has become a leader in environmental engineering and consulting.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Larry Walker Associateslwa.com HQ: Davis, CA, United StatesReported employees: 51-200 | Davis, CA, United States | 51-200 | Exact match | 81 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Aarc Environmentalaarcenv.com HQ: Houston, FL, United StatesReported employees: 51-200 | Houston, FL, United States | 51-200 | Exact match | 79 contacts → |
“As a leader in the environmental compliance services industry, AARC does more than just meeting the needs of clients today.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Cgrs INCcgrs.com HQ: Fort Collins, WA, United StatesReported employees: 51-200 | Fort Collins, WA, United States | 51-200 | Exact match | 73 contacts → |
“We deliver quality solutions with integrity and expertise, every time.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Bayland Consultants & Designers, INCbaylandinc.com HQ: Hanover, MD, United StatesReported employees: 11-50 | Hanover, MD, United States | 11-50 | Exact match | 63 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 16 | Artemis Arıtımartemisaritim.com HQ: İstanbul, TürkiyeReported employees: 51-200 | İstanbul, Türkiye | 51-200 | Exact match | 63 contacts → |
“1998 yılından günümüze çevre koruma konusunda faaliyet gösteren Artemis Arıtım uluslararası bilgi ve tecrübeye sahip mühendisleri ve akademik danışmanlarıyla birçok başarılı…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Ecolsciences, INCecolsciences.com HQ: Rockaway, United StatesReported employees: 11-50 | Rockaway, United States | 11-50 | Exact match | 51 contacts → |
“EcolSciences, Inc, was founded in 1973 in response to the growing need for responsible environmental planning, as mandated by NEPA, The National Environmental Policy Act.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Enviroservices & Training Centergotoetc.com HQ: Honolulu, HI, United StatesReported employees: 51-200 | Honolulu, HI, United States | 51-200 | Exact match | 48 contacts → |
“We Are a Full-Service Environmental Consultancy.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Great Lakes Environmental Centerglec.com HQ: Traverse City, MI, United StatesReported employees: 51-200 | Traverse City, MI, United States | 51-200 | Exact match | 45 contacts → |
“Contracted environmental services focused on freshwater resources.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Sapphos Environmental, INCsapphosenvironmental.com HQ: Pasadena, CA, United StatesReported employees: 11-50 | Pasadena, CA, United States | 11-50 | Exact match | 44 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 21 | Sequoia Ecological Consultingsequoiaeco.com HQ: Walnut Creek, CA, United StatesReported employees: 11-50 | Walnut Creek, CA, United States | 11-50 | Exact match | 41 contacts → |
“Founded in 2011, Sequoia is a California-based, woman-owned, small, and disadvantaged business (WBE | SBE | DBE) that provides environmental consulting services to public agencies…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | MLJ Environmentalmljenvironmental.com HQ: Sacramento, CA, United StatesReported employees: 11-50 | Sacramento, CA, United States | 11-50 | Exact match | 38 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Catalyst Environmental Solutions Corporationce.solutions HQ: Santa Monica, CA, United StatesReported employees: 11-50 | Santa Monica, CA, United States | 11-50 | Exact match | 37 contacts → |
“Catalyst Environmental Solutions Corporation is a full service environmental consulting firm, specializing in the energy sector, land development and remediation, and water…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Stetson Engineers INCstetsonengineers.com HQ: San Rafael, OR, United StatesReported employees: 51-200 | San Rafael, OR, United States | 51-200 | Exact match | 36 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 · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | SRT Consultantssrtconsultants.com HQ: San Francisco, CA, United StatesReported employees: 11-50 | San Francisco, CA, United States | 11-50 | Exact match | 36 contacts → |
“A water resources and environmental engineering consulting firm based in the San Francisco Bay Area, with a second office location in Seattle, WA.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 729 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Water discharge permitting consultants: dataset insights
November 6, 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
729 records in the displayed employee bands.
0 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 across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 729 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: November 6, 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 ↗
Water discharge permitting consultants by location
1 lists · largest firstEvery Water discharge permitting consultants list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Questions about this company list
What does Exact match mean for water discharge permitting 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 discharge permitting consultants did RevenueBase find worldwide?
The saved snapshot records 729 matching company records, 5,601 tracked contacts and 2,297 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: November 6, 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
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 water discharge permitting consultants worldwide. Snapshot: November 6, 2026. https://revenuebase.ai/companies/browse/water-discharge-permitting-consultants.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗