Grindstone Island Winery

What Grindstone Island Winery does

Grindstone Island Winery is a small, privately held family winery founded in 2011 on a 3.5-acre hillside site on Grindstone Island in the St. Lawrence River, within the Thousand Islands region of New York. The estate grows cold-hardy grape varieties — Baco Noir, Prairie Star, Frontenac, Marquette, and La Crescent — adapted to the maritime climate and limestone-rich soils of the Frontenac Islands, and produces a portfolio of 15+ wines including reds, whites, a rosé, a raspberry fruit wine, and port-style wines, with extended barrel aging (1-3 years in American and French oak) followed by 2-3 months of bottle aging.

The business operates seasonally (May-September) and earns revenue through four primary streams: direct-to-consumer sales at the on-island tasting room (wine tastings, glasses, bottles, local craft beer, cheese boards, and seasonal snacks); wholesale distribution to four off-island regional retail accounts in Watertown and Alexandria Bay, NY; paid shuttle services ($10/person round-trip from Upper Town Landing and Canoe Point State Park); and event hosting (private events Monday-Wednesday, plus public programming including live music, yoga at $18, food pop-ups, trivia, and open mic). The winery is accessible only by boat, which both defines its experiential positioning and constrains visitor throughput.

Go-to-market is event-driven and DTC, with marketing concentrated on the Squarespace website, organic social media, email newsletters, and partner-promoted boat services (RJ Marine Water Taxi, 1000 Islands Excursions, 1000 Islands Private Boat Tour). The winery explicitly positions itself as the de facto community hub for Grindstone Island's roughly 10 year-round and up to 700 seasonal residents, with wine SKUs named after island landmarks. Operations are lean at 6 employees, with no institutional funding, no parent company, and no disclosed financials.

Name

Grindstone Island Winery

Legal name

Grindstone Island Winery

Website

https://grindstoneislandwinery.com

Company type

Private

Founded year

2011

Operating status

Operating

Headcount range

1–10 employees

Short description

Grindstone Island Winery is a privately held, family-run estate winery founded in 2011 on Grindstone Island in the Thousand Islands, New York. It produces 15+ cold-climate wines from a 3.5-acre vineyard and sells seasonally through a boat-access-only tasting room, regional retail accounts, shuttles, and event programming.

Ownership category

akta.pro rank

Headquarters

HQ city

Grindstone Island

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Marketing or Sales, Infrastructure, Others

Revenue model

1. Wine Sales: Direct sales of estate-grown wines including red wines (Baco Noir, Frontenac, Merlot, Upper Schoolhouse Red, Backside Baco, Delaney Bay Red), rosé, white wines (Chardonnay, Riesling, Lower Schoolhouse White, Prairie Star), fruit wines (Round Island Raspberry), and port-style wines (Tawny Red Port, White Sail Port). Sales through on-site tasting room and off-island retail locations.
2. Shuttle Services: Provides shuttle transportation from mainland pickup points (Upper Town Landing and Canoe Point State Park) to the island winery for $10 per person round-trip during peak season.
3. Event Hosting: Private event hosting for celebrations (available Mondays-Wednesdays during summer), generating revenue from venue rental and associated food/beverage sales.
4. Food and Beverage: Offers wine tasting, glasses and bottles of wine, local craft beer, non-alcoholic options, local cheese boards, and seasonal snacks at the tasting room.

Pricing tiers

Go-to-market motion2 records

Distribution channels10 records

Marketing channels5 records

Core offering

Grindstone Island Winery is a small family winery that cultivates cold-hardy grape varieties on a 3.5-acre hillside estate vineyard on Grindstone Island and produces a portfolio of estate-grown red, white, rosé, fruit, and port-style wines barrel-aged in American and French oak. The winery sells its wines direct-to-consumer through an on-island tasting room and a small set of off-island regional retail accounts, and operates complementary services including seasonal shuttle transport, private event hosting, yoga, live music, and food pop-ups.

Product overview

Grindstone Island Winery is a small family winery established in 2011 on Grindstone Island in the Thousand Islands region. The winery produces a portfolio of estate-grown wines including Baco Noir, Frontenac, Merlot, and specialty wines such as Rosé, Riesling, Chardonnay, and Port-style wines (Tawny Red Port and White Sail Port). They also offer raspberry wine and unique blends like Upper Schoolhouse Red and Backside Baco. The winery operates a tasting room that serves as a community gathering space, offering wine tastings, glasses, bottles, local craft beer, and non-alcoholic options paired with local cheese boards and seasonal snacks. Additional services include daily shuttle service from mainland locations and private event hosting. The winery hosts seasonal events including live music, yoga sessions, food pop-ups, and trivia nights.

Differentiator

Problem solved

Functional benefit

Products and services

• Unfiltered Baco Noir Unfiltered red wine crafted from estate-grown Baco Noir grapes and aged with extra oak for added depth and complexity. Sold through the on-island tasting room and off-island retail partners.
• Baco Noir Elegant red wine from Baco Noir grapes with rich notes of blackberry, plum, and smoky oak, deep color, and a velvety finish. Sold to individual consumers through the tasting room and retail partners.
• Frontenac Red wine with deep color and robust tannins that expresses the maritime climate and limestone-rich soils of the Frontenac Islands. Sold to wine enthusiasts via the tasting room and off-island retailers.
• Merlot Estate Merlot with lush flavors of ripe cherry, plum, and a hint of chocolate, smooth velvety texture and well-balanced finish. Sold to individual consumers through the winery tasting room and retail partners.
• Upper Schoolhouse Red Deep, satin red table wine named after Grindstone Island's Upper Schoolhouse, marketed as a taste of the island's history. Sold to consumers through the on-site tasting room and off-island retail accounts.
• Backside Baco Smooth, blended table wine described as the winery's house favorite, with notes of dark cherry, plum, and subtle hints of spice. Sold to consumers at the tasting room and off-island retailers.
• Delaney Bay Red Red wine named after Delaney Bay on Grindstone Island, with a dry sophisticated start transitioning into smooth lingering sweetness. Sold through the winery tasting room and off-island retail locations.
• Baco Noir Rosé Crisp, ultra-dry rosé crafted from estate-grown Baco Noir grapes, offering a bold and refreshing take on tradition. Sold to consumers through the tasting room and off-island retailers.
• Chardonnay Oaky Chardonnay with buttery notes, hints of vanilla and toasted oak, full-bodied texture and creamy finish. Sold at the tasting room and through off-island retail accounts.
• Riesling 2017 semi-sweet Riesling balancing sweetness with crisp acidity and flavors of ripe peach, apricot, and zesty citrus. Sold to consumers at the tasting room and off-island retailers.
• Lower SchoolHouse White Straightforward white table wine named after the Lower White Schoolhouse, with crisp notes of green apple, citrus, and subtle floral undertones. Sold at the tasting room and through off-island retail partners.
• Prairie Star Estate white wine with crisp acidity and vibrant fruit flavors reminiscent of green apple and tropical fruits, made from hardy Prairie Star grapes suited for cold Grindstone winters. Sold to consumers via the tasting room and off-island retail accounts.
• Round Island Raspberry Raspberry wine with aromatic bouquet, vibrant raspberry flavors, a pleasantly dry finish, subtle tartness and balanced acidity. Sold to consumers through the tasting room and off-island retail accounts.
• Tawny Red Port Exceptionally sweet red port-style wine with intense flavors of ripe blackberries, figs, and a hint of dark chocolate, crafted outside Portugal. Sold at the tasting room and through off-island retailers.
• White Sail Port White port-style wine with lighter color and vibrant flavors of citrus, dried fruits, and honey, often enjoyed chilled as an aperitif or in cocktails. Sold to consumers at the tasting room and off-island retailers.
• Wine Tasting Experience On-island tasting-room service offering wine tastings, glasses, and bottles of estate wines to visitors during the seasonal operating window. Includes local craft beer, non-alcoholic options, local cheese boards, and seasonal snacks.
• Seasonal Shuttle Service Daily shuttle transport during peak season between mainland landings (Upper Town Landing and Canoe Point State Park) and the winery, priced at $10 per person round-trip. Provides required island access for visitors without private boats.
• Private Event Hosting Private event hosting at the winery tasting room for celebrations and special occasions, available Mondays through Wednesdays during the summer season, with associated food and beverage sales.

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• RJ Marine Water TaxicoreChannel Partner/ Reseller/ DistributorWater taxi service providing direct dock-to-dock transportation to the island winery. Maximum 6 passengers, charges $8/minute (0700-2000) or $10/minute (2000-0700). Book via phone at 315-777-6059. Essential transportation partner for island access.
• 1000 Islands ExcursionscoreChannel Partner/ Reseller/ DistributorPrivate boat tour service offering custom pickup and drop-off options right from waterfront rentals or homes. Captain Matt provides experienced, knowledgeable captain services with wildlife and landmark viewing. Dog, family, and friend friendly. Perfect for reunions, girls days out, anniversaries, clubs. Contact: (607) 592-6226 or book online.
• 1000 Islands Private Boat TourminorChannel Partner/ Reseller/ DistributorPrivate boat tour service with Coast Guard Certified Captain Jordan. Offers direct winery visits or multi-stop tours. Contact: (315) 775-8688.
• Wine SellarcoreChannel Partner/ Reseller/ DistributorOff-island retail location in Watertown, NY where winery wines are available for purchase.
• Ronson's Gold Star LiquorminorChannel Partner/ Reseller/ DistributorOff-island retail location in Alexandria Bay, NY where winery wines are available for purchase.
• Alexandria Bay wine & liquorminorChannel Partner/ Reseller/ DistributorOff-island retail location in Alexandria Bay, NY where winery wines are available for purchase.
• Bay SpiritsminorChannel Partner/ Reseller/ DistributorOff-island retail location where winery wines are available for purchase.

Scale indicators4 records

Recent moves5 records

Expansion highlights5 records

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Customer concentration

• LinkedInlinkedin.com/company/grindstone-island-winery

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Grindstone Island Winery