OneShoreline

What OneShoreline does

OneShoreline, formally the San Mateo County Flood and Sea Level Rise Resiliency District, is an independent California special district (non-profit, public government agency) founded in 2020 and headquartered in San Mateo, California. The agency plans and implements flood, sea level rise, and coastal erosion resilience projects and guidance across the municipalities of San Mateo County. It is governed by a seven-member Board of Directors — two San Mateo County Supervisors and five council members from Northern, Southern, Central, Coast, and At-Large regions — providing built-in coordination across the county's cities, towns, and unincorporated areas. The customer base is the county's municipalities and residents; the district does not sell commercially and is funded entirely through public sources including property assessments, taxes, and government grants.

The agency's core operational capability is the Countywide Flood Early Warning System, a maintained network of rain, stream, and tide gauges that provides real-time hydrological data to communities during major storms. Beyond this monitoring layer, OneShoreline delivers planning policy guidance, public-infrastructure resilience standards, and capital-project execution across an active portfolio: the Brisbane and Southern Bayside Cities Shoreline Resilience Plans, the Colma Creek Watershed Plan and Lower Colma Creek Resilience Projects, San Bruno Creek Resilience, the Millbrae and Burlingame Shoreline Resilience Project, the Bayfront Canal & Atherton Channel flood protection and ecosystem restoration project, Belmont Creek stormwater detention and creek restoration, the Redwood Shores Sea Level Rise Protection Project, the Pillar Point Harbor study, and a Bayside creeks routine maintenance program. The organization has also launched a Home Protection and Insurability Initiative that links flood and wildfire risk mitigation with insurance outcomes for residents — a deliberate extension beyond physical infrastructure into residential financial resilience.

OneShoreline runs with a lean core team of 1-10 employees and supplements delivery through multi-year Master Service Agreements with engineering, construction, and environmental partners (Goodfellow Bros. California; Yerba Buena Engineering & Construction; Haley & Aldrich; H.T. Harvey & Associates). It engages the public via Board and Citizens Advisory Committee meetings (with livestreams and Zoom participation), a newsletter, local press coverage, and an events calendar. As a public agency, the organization is not a PE/VC target; its scale, governance, and impact are best measured in program coverage, jurisdictional integration, and policy outcomes rather than revenue or equity value.

Name

OneShoreline

Legal name

San Mateo County Flood and Sea Level Rise Resiliency District

Website

https://oneshoreline.org

Company type

Private

Founded year

2020

Operating status

Operating

Headcount range

1–10 employees

Short description

OneShoreline is an independent California special district that plans and implements flood, sea level rise, and coastal erosion resilience projects for San Mateo County's municipalities and residents, funded by public assessments and grants.

Ownership category

akta.pro rank

Product category

Climate Resilience and Flood Management Services

NAICS

Administration of Environmental Quality Programs (9241)

SIC

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

akta.pro primary industry

Urban Flood Resilience & Adaptation Planning (Climate, Nature-Based Solutions) (EUANAEAJ)

akta.pro secondary industries

Flood Control & Protection Infrastructure (Levees, Floodwalls, Gates, Pump Stations) (EUANAEAI), Coastal & Marine Resources Administration (Oceans, Fisheries, Shorelines) (BPAIAMAI), Breakwaters, Seawalls & Coastal Defense Structures (IMAFAJAC)

Keywords

• Flood resilience planning
• Sea level rise adaptation
• Climate resilience services
• Watershed restoration
• Flood early warning

Headquarters

HQ city

San Mateo

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Technology or R&D, Others

Revenue model

1. Government Funding and Grants: As an independent government agency (special district), OneShoreline secures public funding through taxes, assessments, and government grants to fund resilience projects across San Mateo County.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

OneShoreline (San Mateo County Flood and Sea Level Rise Resiliency District) is an independent government agency that plans and implements regional climate resilience initiatives across San Mateo County. It provides planning policy guidance, public infrastructure resilience standards, countywide flood early warning monitoring, shoreline resilience planning, creek and watershed restoration, and routine maintenance services for bay-area creeks to mitigate flooding, sea level rise, and coastal erosion.

Product overview

OneShoreline (San Mateo County Flood and Sea Level Rise Resiliency District) is an independent government agency that provides regional climate resiliency services rather than commercial tech products. The organization offers planning policy guidance, coordinates infrastructure projects, and operates monitoring systems for flood and sea level rise preparedness across San Mateo County. Their programs include the Countywide Flood Early Warning System, various shoreline resilience planning initiatives, creek restoration projects, and routine maintenance services for bay-area creeks. Since these are government programs and infrastructure coordination services—not software products or SaaS offerings—no distinct commercial products with product pages, images, or pricing exist in the data.

Differentiator

Problem solved

Functional benefit

Products and services

• Planning Policy Guidance Policy guidance program for local government agencies in San Mateo County on integrating climate resilience into land use and development planning.
• Public Infrastructure Resilience Guidance Guidance service to help local agencies plan, design, and maintain public infrastructure that performs reliably under changing climate conditions, including sea level rise and flood impacts.
• Home Protection and Insurability Initiative Program linking flood and wildfire risk mitigation efforts with improved insurance outcomes for San Mateo County residents.
• Countywide Flood Early Warning System Operated and maintained network of rain, stream, and tide gauges throughout San Mateo County that delivers flood early warning data to help communities make informed and timely decisions during major storms.
• Shoreline Resilience Planning (Brisbane and Southern Bayside Cities) Multi-jurisdictional shoreline resilience plans covering Brisbane and the Southern Bayside Cities, addressing sea level rise and coastal erosion along the San Francisco Bay shoreline.
• Colma Creek Flood Zone Program

Named customers1 record

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Ten partnerships are on record, tiered core and minor.

• San Mateo County Board of SupervisorscoreStrategic or Co-development PartnerTwo members of the San Mateo County Board of Supervisors serve on OneShoreline's Board of Directors, representing District 3 and District 4. This provides direct coordination between the county's governing body and the resiliency district.
• Northern San Mateo County CitiescoreStrategic or Co-development PartnerRepresented on the OneShoreline Board by a council member from cities in the northern part of the county, ensuring coordination on regional resilience initiatives.
• Southern San Mateo County CitiescoreStrategic or Co-development PartnerRepresented on the OneShoreline Board by a council member from cities in the southern part of the county for coordinated resilience planning.
• Central San Mateo County CitiescoreStrategic or Co-development PartnerRepresented on the OneShoreline Board by a council member from central county cities for regional coordination.
• Coast CommunitiescoreStrategic or Co-development PartnerRepresented on the Board by a council member representing the coastal areas of San Mateo County.
• At-Large RepresentativescoreStrategic or Co-development PartnerBoard positions representing At-Large areas ensuring broad geographic representation in county-wide resilience planning.
• Goodfellow Bros. California, LLCminorImplementation/ SI/ Consulting PartnerEngineering and construction firm engaged for as-needed routine maintenance services under a three-year Master Service Agreement.
• Yerba Buena Engineering & Construction, Inc.minorImplementation/ SI/ Consulting PartnerEngineering and construction firm engaged for as-needed routine maintenance services under a three-year Master Service Agreement.
• Haley & AldrichminorImplementation/ SI/ Consulting PartnerEngineering services and management of infrastructure maintenance under a 3-year agreement for $400,000.
• H.T. Harvey & AssociatesminorImplementation/ SI/ Consulting PartnerEnvironmental compliance services for maintenance and construction activities under a 3-year agreement for $200,000.

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• King County Flood Control District: Special purpose district in Washington State providing flood management services across the King County region. Comparable as a property-tax-funded regional flood control district with multi-jurisdictional scope.
• San Francisco Bay Restoration Authority: Regional authority administering the Measure AA parcel tax for shoreline restoration and flood protection around San Francisco Bay. Closely comparable in geographic proximity, funding mechanism (parcel tax), and shoreline resilience mandate.
• South Florida Water Management District: Regional special district governing flood control, water supply, and ecosystem restoration across a 16-county region in Florida. Highly comparable as a multi-jurisdictional governmental authority focused on flood and coastal resilience, but operating at much larger geographic scale.
• Sacramento Area Flood Control Agency (SAFCA): Joint powers authority coordinating flood control infrastructure across the Sacramento region. Comparable as a cross-jurisdictional flood resilience agency, though focused on riverine flooding rather than coastal/sea-level-rise risks.
• California State Coastal Conservancy: California state agency that works with local governments to protect and restore coastal resources, including shoreline resilience and climate adaptation. Comparable mission in coastal resilience but operates statewide rather than within one county.

Broad incumbents

• NYC Department of Environmental Protection: Municipal agency responsible for New York City's water supply, wastewater, and stormwater management. Comparable in operating large-scale water/flood infrastructure for a single metropolitan jurisdiction, though within a much larger city context.
• Bay Area Stormwater Management Agencies Association (BASMAA): Association of Bay Area municipal stormwater agencies coordinating regional stormwater management. Comparable in regional coordination scope around stormwater and flood resilience across the Bay Area.
• Metropolitan Water District of Southern California: Large regional water and flood-management special district serving six counties in Southern California. Comparable as a multi-county public agency focused on water/flood infrastructure, though primarily a water wholesaler rather than a coastal resilience coordinator.

Regional players

• Tampa Bay Water: Regional water supply authority in Florida coordinating water supply across multiple member governments. Comparable as a multi-jurisdictional special district, though focused on water supply rather than flood/sea-level-rise resilience.
• Marin County Flood Control and Water Conservation District: Neighboring Bay Area county district providing flood control services, explicitly referenced in news coverage as needing an 'OneShoreline-type' cross-jurisdictional coordination body. Closest geographic peer but lacks OneShoreline's broader resilience mandate.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@oneshoreline/featured
• Xx.com/OneShoreline
• LinkedInlinkedin.com/company/oneshoreline

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

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 OneShoreline