Company lists · Data refreshed November 2026
Top 25 Sewer system operators based in the United States
RevenueBase identified 220 company matches for sewer system operators associated with the United States as of November 2026 and tracks 7,553 professional contacts across them, including 3,198 with verified work emails. Greenville is the largest hub.
This list covers company matches for sewer system operators 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 November 6, 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 sewer system operators based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,263 contacts → | ||||
Exact match “Established in 1918, WSSC Water is currently among the largest water and wastewater utilities in the nation, with a network of nearly miles of drinking water pipeline and over…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 488 contacts → | ||||
Exact match “The Northeast Ohio Regional Sewer District protects public health and the environment by leading effective wastewater and stormwater management.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 283 contacts → | ||||
Exact match “Toho Water Authority was established in 2003 by a special act of the Florida legislature and provides a full range of water, wastewater and reclaimed water services to its…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 248 contacts → | ||||
Exact match “ALCOSAN is one of the Pittsburgh region’s premiere environmental and public health organizations, treating wastewater for 83 Allegheny County communities, including the City of…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 177 contacts → | ||||
Exact match “S&L delivers long-lasting, reliable and easy-to-operate wastewater pumping and treatment systems for municipal, federal, and industrial-commercial applications.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 165 contacts → | ||||
Exact match “Middlesex Water Company (NASDAQ:MSEX) provides a full range of regulated and non-regulated water, wastewater utility and related services primarily in New Jersey and Delaware.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 108 contacts → | ||||
Exact match “Established in 1930 to protect the lakes and streams of the upper Yahara watershed, Madison Metropolitan Sewerage District is a wastewater collection and treatment utility serving…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 88 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 77 contacts → | ||||
Exact match “Little Rock Water Reclamation Authority exists to preserve and replenish the environment by reclaiming our most valuable resource, water.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 75 contacts → | ||||
Exact match “Approved Oil Company The Leading Energy Provider of NYC Approved is one of the largest independent energy suppliers in the Tri-State area, serving commercial and residential…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 74 contacts → | ||||
Exact match “The Douglasville-Douglas County Water and Sewer Authority (“WSA” or “the Authority”) has been delivering quality water and wastewater service to Douglas County residents since…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 71 contacts → | ||||
Exact match “Excellence in customer service and operations is why Municipal Operations & Consulting, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 68 contacts → | ||||
Exact match “AWWU employs close to 300 men and women who operate its treatment plants and other facilities, while spending $50 million annually to ensure Anchorage’s water and wastewater…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 66 contacts → | ||||
Exact match “The City of San Bernardino Municipal Water Department delivers high quality, economically priced water, sewer treatment, and sewer collection services to over residents in the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 65 contacts → | ||||
Exact match “Si Environmental, LLC, is a Texas-based company that leads the way in water and wastewater facility operations and maintenance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 58 contacts → | ||||
Exact match “Johnson County Wastewater (JCW) is responsible for the safe collection, transportation and treatment of wastewater generated by our community.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 53 contacts → | ||||
Exact match “Serving Municipalities & Utilities with Cleaning, Inspection, Maintenance, Repair, and Rehabilitation Services Across the Southeast U.S.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 46 contacts → | ||||
Exact match “Oro Loma Sanitary District provides wastewater collection and treatment services, and residential and commercial solid waste and recycling services to its customers.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 45 contacts → | ||||
Exact match “Infrastructure Alternatives, Inc.(IAI) provides contract operations, maintenance and management services for water and wastewater utilities, for municipal governments, industries…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 40 contacts → | ||||
Exact match “The Water System as an agency of Cobb County Government is a utility operation responsible for water distribution, wastewater collection and treatment, and stormwater management.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 40 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 39 contacts → | ||||
Exact match “West County Wastewater District is a company based out of 2910 Hilltop Drive, Richmond, California, United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 37 contacts → | ||||
Exact match “CAMDEN COUNTY MUNICIPAL UTILITIES AUTHORITY, THE is a company based out of 1645 FERRY AVE, CAMDEN, New Jersey, United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 34 contacts → | ||||
Exact match “The Metropolitan Commission, also known as MetCom, is the public water and sewer utility for St.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 25 | 34 contacts → | ||||
Exact match “West Knox Utility District is a water and wastewater utility provider encompassing a service area of seventy-two square miles.” 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 “sewer system operators”. 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 220 sewer system operators based in the United States
See the full list, filter by size, metro and specialty, and access 3,198 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Sewer system operators based in the United States at a glance
As of Nov 6, 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 220 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 “sewer system operators” 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 3,198 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.
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 “sewer system operators”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many sewer system operators are there based in the United States?
RevenueBase identified 220 company matches for sewer system operators associated with the United States 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?
Wssc Water tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most sewer system operators?
Greenville leads with 3 company records, followed by Madison (3) and Atlanta (2).
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 3,198 professional contacts with verified work emails tracked across these 220 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 220 sewer system operators based in the United States. Start with a free account, no credit card.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
More company lists
Company intelligence · public preview
Top 25 sewer system operators 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 220 matching company records for sewer system operators based in the United States, with 7,553 tracked contacts and 3,198 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 sewer system operators 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 |  Wssc Waterwsscwater.comHQ: Laurel, MD, United StatesReported employees: 1,001-5,000 | Laurel, MD, United States | 1,001-5,000 | Exact match | 1,263 contacts → |
“Established in 1918, WSSC Water is currently among the largest water and wastewater utilities in the nation, with a network of nearly miles of drinking water pipeline and over…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Northeast Ohio Regional Sewer Districtneorsd.orgHQ: Cleveland, OH, United StatesReported employees: 501-1,000 | Cleveland, OH, United States | 501-1,000 | Exact match | 488 contacts → |
“The Northeast Ohio Regional Sewer District protects public health and the environment by leading effective wastewater and stormwater management.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Toho Water Authoritytohowater.comHQ: Kissimmee, FL, United StatesReported employees: 501-1,000 | Kissimmee, FL, United States | 501-1,000 | Exact match | 283 contacts → |
“Toho Water Authority was established in 2003 by a special act of the Florida legislature and provides a full range of water, wastewater and reclaimed water services to its…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Alcosanalcosan.orgHQ: Pittsburgh, United StatesReported employees: 201-500 | Pittsburgh, United States | 201-500 | Exact match | 248 contacts → |
“ALCOSAN is one of the Pittsburgh region’s premiere environmental and public health organizations, treating wastewater for 83 Allegheny County communities, including the City of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Smith & Loveless INCsmithandloveless.comHQ: Lenexa, KS, United StatesReported employees: 201-500 | Lenexa, KS, United States | 201-500 | Exact match | 177 contacts → |
“S&L delivers long-lasting, reliable and easy-to-operate wastewater pumping and treatment systems for municipal, federal, and industrial-commercial applications.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Middlesex Water Companymiddlesexwater.comHQ: Iselin, DE, United StatesReported employees: 201-500 | Iselin, DE, United States | 201-500 | Exact match | 165 contacts → |
“Middlesex Water Company (NASDAQ:MSEX) provides a full range of regulated and non-regulated water, wastewater utility and related services primarily in New Jersey and Delaware.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Madison Metropolitan Sewerage Districtmadsewer.orgHQ: Madison, WI, United StatesReported employees: 51-200 | Madison, WI, United States | 51-200 | Exact match | 108 contacts → |
“Established in 1930 to protect the lakes and streams of the upper Yahara watershed, Madison Metropolitan Sewerage District is a wastewater collection and treatment utility serving…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Montgomery, United StatesReported employees: 201-500 | Montgomery, United States | 201-500 | Exact match | 88 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 9 | HQ: Little Rock, AR, United StatesReported employees: 201-500 | Little Rock, AR, United States | 201-500 | Exact match | 77 contacts → |
“Little Rock Water Reclamation Authority exists to preserve and replenish the environment by reclaiming our most valuable resource, water.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Approved OIL Companyapprovedoil.comHQ: Brooklyn, United StatesReported employees: 51-200 | Brooklyn, United States | 51-200 | Exact match | 75 contacts → |
“Approved Oil Company The Leading Energy Provider of NYC Approved is one of the largest independent energy suppliers in the Tri-State area, serving commercial and residential…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Douglasville, GA, United StatesReported employees: 51-200 | Douglasville, GA, United States | 51-200 | Exact match | 74 contacts → |
“The Douglasville-Douglas County Water and Sewer Authority (“WSA” or “the Authority”) has been delivering quality water and wastewater service to Douglas County residents since…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Municipal Operations & Consulting, INCmunicipalops.comHQ: Cypress, TX, United StatesReported employees: 201-500 | Cypress, TX, United States | 201-500 | Exact match | 71 contacts → |
“Excellence in customer service and operations is why Municipal Operations & Consulting, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HQ: Anchorage, AK, United StatesReported employees: 201-500 | Anchorage, AK, United States | 201-500 | Exact match | 68 contacts → |
“AWWU employs close to 300 men and women who operate its treatment plants and other facilities, while spending $50 million annually to ensure Anchorage’s water and wastewater…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  City Of SAN Bernardino Municipal Water Departmentsbcitywater.orgHQ: San Bernardino, CA, United StatesReported employees: 201-500 | San Bernardino, CA, United States | 201-500 | Exact match | 66 contacts → |
“The City of San Bernardino Municipal Water Department delivers high quality, economically priced water, sewer treatment, and sewer collection services to over residents in the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  SI Environmental, LLCsienv.comHQ: Rosenberg, TX, United StatesReported employees: 201-500 | Rosenberg, TX, United States | 201-500 | Exact match | 65 contacts → |
“Si Environmental, LLC, is a Texas-based company that leads the way in water and wastewater facility operations and maintenance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Johnson County Wastewaterjcw.orgHQ: Olathe, KS, United StatesReported employees: 201-500 | Olathe, KS, United States | 201-500 | Exact match | 58 contacts → |
“Johnson County Wastewater (JCW) is responsible for the safe collection, transportation and treatment of wastewater generated by our community.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Envirowaste Services Groupewsg.comHQ: Palmetto Bay, FL, United StatesReported employees: 201-500 | Palmetto Bay, FL, United States | 201-500 | Exact match | 53 contacts → |
“Serving Municipalities & Utilities with Cleaning, Inspection, Maintenance, Repair, and Rehabilitation Services Across the Southeast U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  ORO Loma Sanitary Districtoroloma.orgHQ: San Lorenzo, CA, United StatesReported employees: 11-50 | San Lorenzo, CA, United States | 11-50 | Exact match | 46 contacts → |
“Oro Loma Sanitary District provides wastewater collection and treatment services, and residential and commercial solid waste and recycling services to its customers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Infrastructure Alternatives, INCiaiwater.comHQ: Rockford, MI, United StatesReported employees: 51-200 | Rockford, MI, United States | 51-200 | Exact match | 45 contacts → |
“Infrastructure Alternatives, Inc.(IAI) provides contract operations, maintenance and management services for water and wastewater utilities, for municipal governments, industries…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Cobb County Water Systemcobbcounty.orgHQ: Marietta, GA, United StatesReported employees: 201-500 | Marietta, GA, United States | 201-500 | Exact match | 40 contacts → |
“The Water System as an agency of Cobb County Government is a utility operation responsible for water distribution, wastewater collection and treatment, and stormwater management.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Morgantown Utility Boardmub.org HQ: Morgantown, WV, United StatesReported employees: 11-50 | Morgantown, WV, United States | 11-50 | Exact match | 40 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 |  West County Wastewaterwcwd.orgHQ: Richmond, CA, United StatesReported employees: 51-200 | Richmond, CA, United States | 51-200 | Exact match | 39 contacts → |
“West County Wastewater District is a company based out of 2910 Hilltop Drive, Richmond, California, United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: Camden, NJ, United StatesReported employees: 51-200 | Camden, NJ, United States | 51-200 | Exact match | 37 contacts → |
“CAMDEN COUNTY MUNICIPAL UTILITIES AUTHORITY, THE is a company based out of 1645 FERRY AVE, CAMDEN, New Jersey, United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: California, MD, United StatesReported employees: 51-200 | California, MD, United States | 51-200 | Exact match | 34 contacts → |
“The Metropolitan Commission, also known as MetCom, is the public water and sewer utility for St.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  West Knox Utility Districtwkud.comHQ: Knoxville, TN, United StatesReported employees: 51-200 | Knoxville, TN, United States | 51-200 | Exact match | 34 contacts → |
“West Knox Utility District is a water and wastewater utility provider encompassing a service area of seventy-two square miles.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 220 company matches
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Sewer system operators: 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
220 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 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 220 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 ↗
Questions about this company list
What does Exact match mean for sewer system operators?
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 sewer system operators did RevenueBase find based in the United States?
The saved snapshot records 220 matching company records, 7,553 tracked contacts and 3,198 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
Sewer system operators by geography
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 sewer system operators based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/sewer-system-operators/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
Company intelligence · public preview
Top 25 sewer system operators based in the United States
RevenueBase records 220 matching company records for sewer system operators based in the United States, with 7,553 tracked contacts and 3,198 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 sewer system operators 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 | Wssc Waterwsscwater.com HQ: Laurel, MD, United StatesReported employees: 1,001-5,000 | Laurel, MD, United States | 1,001-5,000 | Exact match | 1,263 contacts → |
“Established in 1918, WSSC Water is currently among the largest water and wastewater utilities in the nation, with a network of nearly miles of drinking water pipeline and over…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Northeast Ohio Regional Sewer Districtneorsd.org HQ: Cleveland, OH, United StatesReported employees: 501-1,000 | Cleveland, OH, United States | 501-1,000 | Exact match | 488 contacts → |
“The Northeast Ohio Regional Sewer District protects public health and the environment by leading effective wastewater and stormwater management.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Toho Water Authoritytohowater.com HQ: Kissimmee, FL, United StatesReported employees: 501-1,000 | Kissimmee, FL, United States | 501-1,000 | Exact match | 283 contacts → |
“Toho Water Authority was established in 2003 by a special act of the Florida legislature and provides a full range of water, wastewater and reclaimed water services to its…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Alcosanalcosan.org HQ: Pittsburgh, United StatesReported employees: 201-500 | Pittsburgh, United States | 201-500 | Exact match | 248 contacts → |
“ALCOSAN is one of the Pittsburgh region’s premiere environmental and public health organizations, treating wastewater for 83 Allegheny County communities, including the City of…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Smith & Loveless INCsmithandloveless.com HQ: Lenexa, KS, United StatesReported employees: 201-500 | Lenexa, KS, United States | 201-500 | Exact match | 177 contacts → |
“S&L delivers long-lasting, reliable and easy-to-operate wastewater pumping and treatment systems for municipal, federal, and industrial-commercial applications.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Middlesex Water Companymiddlesexwater.com HQ: Iselin, DE, United StatesReported employees: 201-500 | Iselin, DE, United States | 201-500 | Exact match | 165 contacts → |
“Middlesex Water Company (NASDAQ:MSEX) provides a full range of regulated and non-regulated water, wastewater utility and related services primarily in New Jersey and Delaware.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Madison Metropolitan Sewerage Districtmadsewer.org HQ: Madison, WI, United StatesReported employees: 51-200 | Madison, WI, United States | 51-200 | Exact match | 108 contacts → |
“Established in 1930 to protect the lakes and streams of the upper Yahara watershed, Madison Metropolitan Sewerage District is a wastewater collection and treatment utility serving…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | HQ: Montgomery, United StatesReported employees: 201-500 | Montgomery, United States | 201-500 | Exact match | 88 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 9 | HQ: Little Rock, AR, United StatesReported employees: 201-500 | Little Rock, AR, United States | 201-500 | Exact match | 77 contacts → |
“Little Rock Water Reclamation Authority exists to preserve and replenish the environment by reclaiming our most valuable resource, water.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Approved OIL Companyapprovedoil.com HQ: Brooklyn, United StatesReported employees: 51-200 | Brooklyn, United States | 51-200 | Exact match | 75 contacts → |
“Approved Oil Company The Leading Energy Provider of NYC Approved is one of the largest independent energy suppliers in the Tri-State area, serving commercial and residential…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | HQ: Douglasville, GA, United StatesReported employees: 51-200 | Douglasville, GA, United States | 51-200 | Exact match | 74 contacts → |
“The Douglasville-Douglas County Water and Sewer Authority (“WSA” or “the Authority”) has been delivering quality water and wastewater service to Douglas County residents since…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Municipal Operations & Consulting, INCmunicipalops.com HQ: Cypress, TX, United StatesReported employees: 201-500 | Cypress, TX, United States | 201-500 | Exact match | 71 contacts → |
“Excellence in customer service and operations is why Municipal Operations & Consulting, Inc.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | HQ: Anchorage, AK, United StatesReported employees: 201-500 | Anchorage, AK, United States | 201-500 | Exact match | 68 contacts → |
“AWWU employs close to 300 men and women who operate its treatment plants and other facilities, while spending $50 million annually to ensure Anchorage’s water and wastewater…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | City Of SAN Bernardino Municipal Water Departmentsbcitywater.org HQ: San Bernardino, CA, United StatesReported employees: 201-500 | San Bernardino, CA, United States | 201-500 | Exact match | 66 contacts → |
“The City of San Bernardino Municipal Water Department delivers high quality, economically priced water, sewer treatment, and sewer collection services to over residents in the…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | SI Environmental, LLCsienv.com HQ: Rosenberg, TX, United StatesReported employees: 201-500 | Rosenberg, TX, United States | 201-500 | Exact match | 65 contacts → |
“Si Environmental, LLC, is a Texas-based company that leads the way in water and wastewater facility operations and maintenance.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Johnson County Wastewaterjcw.org HQ: Olathe, KS, United StatesReported employees: 201-500 | Olathe, KS, United States | 201-500 | Exact match | 58 contacts → |
“Johnson County Wastewater (JCW) is responsible for the safe collection, transportation and treatment of wastewater generated by our community.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Envirowaste Services Groupewsg.com HQ: Palmetto Bay, FL, United StatesReported employees: 201-500 | Palmetto Bay, FL, United States | 201-500 | Exact match | 53 contacts → |
“Serving Municipalities & Utilities with Cleaning, Inspection, Maintenance, Repair, and Rehabilitation Services Across the Southeast U.S.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | ORO Loma Sanitary Districtoroloma.org HQ: San Lorenzo, CA, United StatesReported employees: 11-50 | San Lorenzo, CA, United States | 11-50 | Exact match | 46 contacts → |
“Oro Loma Sanitary District provides wastewater collection and treatment services, and residential and commercial solid waste and recycling services to its customers.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Infrastructure Alternatives, INCiaiwater.com HQ: Rockford, MI, United StatesReported employees: 51-200 | Rockford, MI, United States | 51-200 | Exact match | 45 contacts → |
“Infrastructure Alternatives, Inc.(IAI) provides contract operations, maintenance and management services for water and wastewater utilities, for municipal governments, industries…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Cobb County Water Systemcobbcounty.org HQ: Marietta, GA, United StatesReported employees: 201-500 | Marietta, GA, United States | 201-500 | Exact match | 40 contacts → |
“The Water System as an agency of Cobb County Government is a utility operation responsible for water distribution, wastewater collection and treatment, and stormwater management.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Morgantown Utility Boardmub.org HQ: Morgantown, WV, United StatesReported employees: 11-50 | Morgantown, WV, United States | 11-50 | Exact match | 40 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 22 | West County Wastewaterwcwd.org HQ: Richmond, CA, United StatesReported employees: 51-200 | Richmond, CA, United States | 51-200 | Exact match | 39 contacts → |
“West County Wastewater District is a company based out of 2910 Hilltop Drive, Richmond, California, United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: Camden, NJ, United StatesReported employees: 51-200 | Camden, NJ, United States | 51-200 | Exact match | 37 contacts → |
“CAMDEN COUNTY MUNICIPAL UTILITIES AUTHORITY, THE is a company based out of 1645 FERRY AVE, CAMDEN, New Jersey, United States.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | HQ: California, MD, United StatesReported employees: 51-200 | California, MD, United States | 51-200 | Exact match | 34 contacts → |
“The Metropolitan Commission, also known as MetCom, is the public water and sewer utility for St.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | West Knox Utility Districtwkud.com HQ: Knoxville, TN, United StatesReported employees: 51-200 | Knoxville, TN, United States | 51-200 | Exact match | 34 contacts → |
“West Knox Utility District is a water and wastewater utility provider encompassing a service area of seventy-two square miles.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 220 company matches
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Sewer system operators: 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
220 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 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 220 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 ↗
Questions about this company list
What does Exact match mean for sewer system operators?
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 sewer system operators did RevenueBase find based in the United States?
The saved snapshot records 220 matching company records, 7,553 tracked contacts and 3,198 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
Sewer system operators by geography
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 sewer system operators based in the United States. Snapshot: November 6, 2026. https://revenuebase.ai/companies/sewer-system-operators/united-states.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗