Sewer Sentry

What Sewer Sentry does

Sewer Sentry is a privately-held, U.S.-based environmental technology company that designs and sells patented mechanical devices to reduce stormwater inflow into sanitary sewer systems. The company's flagship product, The Sentry, is a manhole cover replacement system installed by municipalities that limits rainwater entry through rings, covers, and pick holes while simultaneously venting hydrogen sulfide gas safely to reduce corrosion and odor. Its secondary product, Clever Cleanout, is a relief valve installed on residential main sewage lines that prevents sewage backups during blockages and heavy rainstorms while blocking snakes and rodents.

The company operates a direct-to-customer go-to-market model with state-based sales representatives covering all 50 U.S. states, supported by membership and conference participation in six municipal and water industry associations (Louisiana Municipal Association, Texas Municipal League, Arkansas Rural Water Association, Florida Rural Water Association, Mississippi Rural Water Association, and the Water Environment Association of Texas). Revenue is generated through hardware sales to two distinct customer segments: municipal governments seeking to mitigate Sanitary Sewer Overflows, EPA fines, and treatment costs, and individual homeowners seeking residential backup protection via direct website purchase. Pricing is not publicly disclosed and is quote-based.

The company holds a granted patent on its inflow reduction system and emphasizes cost-of-treatment savings of $2.80 to $22 per 1,000 gallons of stormwater avoided as the core economic value proposition for utility buyers. Operational scale is limited, with a headcount of 1-10 employees, no disclosed revenue, no disclosed funding rounds, and only one named municipal customer reference (Richwood, LA), indicating an early-stage commercial footprint concentrated in the Southeast U.S.

Name

Sewer Sentry

Legal name

Sewer Sentry

Website

https://sewersentry.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

Sewer Sentry is a privately-held U.S. environmental technology company that sells patented manhole inflow reduction devices to municipal governments and residential sewage backup prevention valves to homeowners, generating revenue through direct hardware sales via state-based representatives across all 50 states.

Ownership category

akta.pro rank

Product category

Wastewater Infrastructure Hardware

NAICS

Water, Sewage and Other Systems (2213)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Gravity Sewer Collection Networks (Sanitary Sewers) (EUANACAA)

akta.pro secondary industry

Stormwater Collection & Conveyance (Inlets, Catch Basins, Pipes, Channels) (EUANAEAA)

Keywords

• Wastewater infrastructure
• Sewer overflow prevention
• Manhole inflow reduction
• H2S gas venting
• Stormwater management

Headquarters

HQ city

Calhoun

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Marketing or Sales, Operations, Technology or R&D

Revenue model

1. Manhole Device Sales: Sale of patented The Sentry manhole cover replacement devices to municipal governments for infrastructure protection and SSO prevention
2. Clever Cleanout Sales: Sale of homeowner-focused sewage backup prevention devices through municipal partnerships and direct homeowner channels

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Sewer Sentry manufactures and sells patented physical hardware devices that reduce excess stormwater inflow into sanitary sewer systems. The Sentry is a manhole cover replacement for municipal infrastructure that limits rainwater entry while safely venting hydrogen sulfide gas. Clever Cleanout is a residential relief valve that prevents sewage backup into homes during blockages and heavy rainstorms. Both products target the underlying problem of excess stormwater overwhelming sanitary sewer networks.

Product overview

Sewer Sentry offers a portfolio of patented inflow reduction technologies designed to prevent excess rainwater from overwhelming sanitary sewer systems. The portfolio consists of two core products: The Sentry (Manhole Device), a municipal-grade manhole cover replacement system for cities that reduces stormwater inflow while venting H2S gas; and Clever Cleanout, a residential relief valve for homeowners that prevents sewage backup during heavy rainstorms and blockages. Both products work together to protect infrastructure, reduce treatment costs, and prevent flooding.

Differentiator

Problem solved

Functional benefit

Brands

• The Sentry: Manhole device that replaces standard manhole covers to limit stormwater inflow into sewer networks while venting hydrogen sulfide gas safely.
• Clever Cleanout

Products and services

• The Sentry (Manhole Device)

Quantifiable outcome

• Treatment cost savings of $2.80 to $22 per 1,000 gallons of stormwater not treated
• +1 more outcomes

Named customers1 record

Segments2 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Six partnerships are on record, tiered minor.

• Louisiana Municipal AssociationminorOthersIndustry membership organization representing Louisiana municipalities. Sewer Sentry participates in their annual conferences and events.
• Texas Municipal LeagueminorOthersIndustry membership organization for Texas municipalities. Sewer Sentry participates in their annual conferences and events.
• Arkansas Rural Water AssociationminorOthersRural water association serving Arkansas communities. Sewer Sentry participates in their annual conferences and events.
• Florida Rural Water AssociationminorOthersRural water association serving Florida communities. Sewer Sentry participates in their annual conferences and events.
• Mississippi Rural Water AssociationminorOthersRural water association serving Mississippi communities. Sewer Sentry participates in their annual conferences and events.
• Water Environment Association of Texas (WEAT)minorOthersProfessional organization for water environment professionals in Texas. Sewer Sentry participates in their annual conferences and events.

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• AP/M Permaform: Specializes in manhole and sewer-structure rehabilitation products and methods, including structural liners and corrosion-resistant systems sold to municipalities — directly competing with Sewer Sentry for the same manhole-rehabilitation budget.
• ADS Environmental Services (IDEX): Provides inflow-and-infiltration monitoring, flow measurement, and sewer-system analytics for municipalities; operates in the same SSO/I&I diagnostic and reduction niche that drives demand for Sewer Sentry's hardware.
• Hydro International: Designs and manufactures stormwater and CSO management equipment — including screening, separation, and grit-removal systems — sold to municipal wastewater utilities to address overflows caused by excess stormwater, the same problem Sewer Sentry's Sentry device targets.
• Aegion Corporation: Provides sewer rehabilitation services and products (Insituform CIPP lining, manhole rehab) to municipal wastewater utilities; competes for the same infrastructure-protection and inflow-reduction capital that Sewer Sentry's customers allocate.
• ConShield Technologies: Manufactures an antimicrobial concrete admixture used in new manholes and sewer structures to inhibit H2S-induced corrosion — directly addressing one of the two problems (corrosion + inflow) that Sewer Sentry's manhole device is designed to solve.

Broad incumbents

• Mueller Water Products: Major NYSE-listed supplier of water and wastewater infrastructure (hydrants, valves, pipe, and Echologics leak detection) to municipal utilities; broader portfolio but addresses the same municipal buyer and adjacent I&I problems.
• Advanced Drainage Systems: Large NYSE-listed manufacturer of drainage and stormwater management products (HDPE pipe, chambers, structures) sold to municipalities and developers; serves the broader stormwater-management category in which Sewer Sentry participates.
• Xylem: Global water-technology company offering pumps, smart meters, treatment, and analytics for water and wastewater utilities; much broader than Sewer Sentry but serves the same municipal procurement channel with adjacent overflow-management solutions.
• Itron: Provides smart water metering, AMI, and analytics for municipal utilities; broader portfolio but overlaps with Sewer Sentry's municipal buyer relationships and increasingly competes in the same 'smart water network' category that touches SSO/I&I management.

Emerging players

• Reliner / Duran Inc. Smaller specialty manufacturer of manhole and sewer-structure rehabilitation products (drop inlets, liners, inflow reduction); more directly comparable in scale and niche focus to Sewer Sentry than the large incumbents.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/sewersentry?s=11
• YouTubeyoutube.com/@SewerSentry
• Facebookfacebook.com/SewerSentryLA
• LinkedInlinkedin.com/company/sewer-sentry
• Instagraminstagram.com/sewer.sentry

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Sewer Sentry