US Harbors

What US Harbors does

US Harbors is a privately held coastal information platform founded in 2009 and headquartered at The Wharf at Lyman Morse in Camden, Maine. The company operates usharbors.com, a web-based platform that aggregates tide forecasts, marine weather data, real-time buoy feeds, nautical charts, Coast Pilot information, harbormaster contacts, and high-tide flooding reports for more than 1,400 harbors across 30 coastal states (Atlantic, Gulf, Pacific, Great Lakes, and Nova Scotia). Users access the core platform for free with optional registration to save favorite harbors and receive a monthly newsletter, and the site also functions as a Progressive Web App on iPhone and Android devices.

The company's product surface spans printable monthly tide charts, interactive tide graphs, onshore and marine weather forecasts (wind speed/direction, humidity, alerts), high-tide flooding reports, a harbor business directory, event listings, and a coastal news feed curated from content partners including NOAA Fisheries and the Woods Hole Oceanographic Institution. US Harbors also operates two recurring community programs: the annual Best Harbor in the U.S. Contest and National Harbormaster Appreciation Day on October 8.

US Harbors monetizes through two channels: (1) Business Memberships at $45/month, providing coastal businesses (marinas, boatyards, fishing guides, lodging, restaurants) with featured placement on local harbor pages, directory listings across up to three categories, and 5,000 monthly ad impressions across all harbors in the member's state; and (2) Display Advertising sold via CPM-based packages (starting at $8 CPM for annual contracts, with a $200/month minimum covering 25,000 impressions) targeting hyperlocal (10 nearest harbors), state-by-state, or national audiences across 23 coastal states. The company is owned outright by co-founder Jamie Bloomquist following his March 2024 acquisition of full ownership from John Hanson, and operates with a small team that includes President Anastasia Fischer.

Name

US Harbors

Legal name

US Harbors LLC

Website

https://usharbors.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

1–10 employees

Short description

US Harbors operates a coastal information platform providing tide charts, marine weather forecasts, and high-tide flooding reports for 1,400+ harbors across 30 coastal states, serving boaters, fishermen, and coastal SMBs via free consumer access and paid business memberships.

Ownership category

akta.pro rank

Product category

Coastal Information Services

NAICS

Support Activities for Water Transportation (4883), Navigational Services to Shipping (488330)

SIC

Water Transportation (4400)

akta.pro primary industry

Harbor Master & Marine Traffic Control (VTS) (TLAHAFAA)

akta.pro secondary industries

Marine Sensors, Instrumentation & IoT (Condition Monitoring) (IMAJAJAI), Marine Safety & Navigation Electronics Retail (PFDs, EPIRBs, GPS, VHF) (CRAMAIAH)

Keywords

• Tide charts
• Marine weather
• Coastal information
• Harbor data
• Fishing forecasts

Headquarters

HQ city

Rockland

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2C

Offering type

Services

Cost components

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

Revenue model

1. Business Membership: Monthly subscription memberships for coastal businesses ($45/month Commander level). Includes featured placement on local harbor pages, listing in business directory and maps, and 5,000 monthly ad impressions across all harbors in the business's state.
2. Display Advertising: Banner advertising packages (Medium Rectangle, Desktop Leaderboard, Mobile Leaderboard) with CPM-based pricing starting at $8 CPM for annual packages. Base rate starts at 25,000 impressions for $200/month. Sold as hyperlocal (10 nearest harbors), state-by-state, or national targeting.

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels6 records

Core offering

US Harbors operates a web-based platform providing tide charts, marine weather forecasts, real-time buoy data, high-tide flooding reports, and local harbor information for over 1,400 harbors across 30 U.S. coastal states. The platform serves boaters, fishermen, and coastal travelers with free access to tide and weather data, while monetizing through paid business memberships ($45/month) and display advertising sold to coastal businesses such as marinas, boatyards, and restaurants.

Product overview

US Harbors is a coastal information platform offering a unified suite of tools for boaters, fishermen, and coastal enthusiasts. The core platform consists of tide charts (printable monthly charts and tide graphs), marine weather forecasts with real-time buoy data, and high tide flooding reports covering over 1,400 harbors across 30 coastal states. Additional products include nautical charts, Coast Pilot information, harbor directories with business listings, event listings, and coastal news content. The platform supports free user registration with saved harbor preferences and offers a mobile Progressive Web App experience. Revenue products include Display Banner Advertising packages and a Business Membership program ($45/month) featuring directory listings and 5,000 monthly ad impressions. The company also operates two annual programs: National Harbormaster Appreciation Day and the Best Harbor Contest.

Differentiator

Problem solved

Functional benefit

Products and services

• Tide Charts
• Weather Forecasts
• High Tide Flooding Reports
• Nautical Charts & Coast Pilot Information
• Harbor Directory & Business Listings
• Coastal News
• Display Banner Advertising
• Business Membership

Named customers4 records

Segments5 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Lyman-MorseminorGTM or Marketing PartnerLyman-Morse marina in Camden, Maine is featured as a local business partner on US Harbors' Camden harbor page. Their facility photo appears on the About Us page showing US Harbors' office location. Provides marina services to US Harbors team.

Scale indicators6 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Surfline: Surfline is a subscription-driven marine forecasting platform delivering surf, tide, and weather reports for coastal users. It overlaps with US Harbors in serving coastal recreation enthusiasts with tide and weather data, though Surfline focuses more heavily on the surfing segment and on premium subscriptions rather than SMB advertising.
• Tide-Forecast.com: Tide-Forecast.com is a tide and sunrise/sunset prediction site covering locations globally. It is one of the closest functional competitors to US Harbors for tide-chart lookups, though it lacks the curated local harbor content, business directory, community events, and US-focused nautical information that US Harbors has built over 15+ years.
• On The Water Magazine: On The Water is a recreational boating media brand covering boats, fishing, and coastal lifestyles in the Northeast US and beyond. It overlaps with US Harbors on coastal content, audience, and SMB marketing, though it operates more as a magazine/subscription media outlet than an advertising-driven information platform.
• Windy (windy.com): Windy is a widely-used weather visualization platform that overlays wind, wave, tide, and buoy data on interactive maps. It competes directly with US Harbors for boaters, fishermen, and coastal users seeking marine forecasts, but operates globally with a much larger user base and richer mobile/web visualization features.
• Dockwa: Dockwa is a marina booking and discovery platform that helps boaters find and reserve transient slips, moorings, and moorings. It overlaps with US Harbors on the coastal business directory and harbor information side, but is more transactional (booking-focused) versus US Harbors' editorial/advertising model.

Emerging players

• Fishidy: Fishidy is a fishing-focused app and web platform delivering forecasts, maps, and catch reports for anglers. It serves a closely related user persona (recreational fishermen/anglers) to US Harbors and overlaps on weather and location-based fishing intelligence, but is more niche/specialist.

Broad incumbents

• ActiveCaptain (Garmin): ActiveCaptain, now a Garmin product, is a crowd-sourced marina and anchorage review platform with marine data overlays. It is comparable to US Harbors' harbor directory and community content but tightly integrated into Garmin's marine electronics ecosystem, giving it distribution advantages US Harbors lacks.
• NOAA Tides and Currents: NOAA Tides and Currents is the official US government source for raw tide, water level, and current data. It is the underlying data provider that US Harbors and competitors curate on top of; it is a partial substitute for users willing to navigate an unstyled government site, and a key upstream content partner for US Harbors itself.
• BoatUS: BoatUS is the largest recreational boating association in the US, providing towing, insurance, advocacy, and editorial content. It is a broad incumbent serving similar boater and coastal audiences as US Harbors with content and membership programs, though anchored around insurance and on-water services rather than tide/weather data.
• Navionics (Garmin): Navionics, owned by Garmin, provides marine navigational charts and tide/current data through native mobile apps and chart plotters. It is an incumbent that overlaps with US Harbors on tide and weather data but is bundled into a much wider marine-navigation ecosystem including chart plotters, depth contours, and turn-by-turn marine routing.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@USHarbors
• Facebookfacebook.com/usharbors
• Instagraminstagram.com/us_harbors
• Xx.com/usharbors
• LinkedInlinkedin.com/company/us-harbors

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 US Harbors