Treasure Island Wines
Treasure Island Wines is a privately held, founder-owned urban winery on San Francisco's Treasure Island producing small-batch artisan California wines, selling direct-to-consumer through an on-site tasting room, e-commerce shipping to four states, a tiered wine club, group tastings, and private events.
- Company typePrivate
- Founded2007
- HeadquartersSan Francisco, United States
- Headcount1–10
- GTM typeB2C
- OfferingHardware or Manufacturing
What Treasure Island Wines does
Treasure Island Wines (TIW) is a privately held, founder-owned urban winery established in 2007 by the Mirowski Brothers — Jim Mirowski and Paul Mirowski — on Treasure Island in San Francisco Bay. The firm produces hand-crafted small-batch wines from grapes sourced across established California viticulture regions including Bennett Valley, Sonoma County, Pine Mountain-Cloverdale Peak, Petaluma Gap, Chalk Hill, and Howell Mountain, deliberately avoiding vineyard ownership so founders can focus on the craft of winemaking rather than farming. Core products span varietals such as Cabernet Sauvignon, Malbec, Pinot Noir Rosé (Vin Gris), Chardonnay, Sauvignon Blanc, Zinfandel, and lesser-known blends, with featured bottles priced in the $29-$39 range.
The business operates a multi-channel direct-to-consumer model: an on-site tasting room on Treasure Island open weekends (Saturdays and Sundays, 1-5pm), group tasting reservations for 4-10 guests, private corporate and personal event hosting, e-commerce shipping to California, Arizona, Washington, and Oregon, and a three-tier wine club (Ensign 3-bottle, Lieutenant 4-bottle, Captain 6-bottle) offering biannual shipments and 20% discounts. The facility also hosts six partner wineries — Umbriaso, Alluvial Wines, Just Enough Wine Company, Sandar and Hem, Stagiaire, and William Lane Wines — in a co-tenancy collective model.
The five-person team includes the two co-founder winemakers plus assistant winemaker Danny Sullivan (UC Davis, BS in Viticulture) and the winemaker partners. Pricing is positioned as 'affordable luxury,' targeting Bay Area locals and tourists seeking artisan wines without the drive or pretension of Napa/Sonoma. The company is bootstrapped with no disclosed external funding rounds, parent company, or institutional ownership.
Treasure Island Wines firmographics
Firmographics- Name
- Treasure Island Wines
- Legal name
- Treasure Island Wines
- Website
- https://tiwines.com
- Company type
- Private
- Founded year
- 2007
- Operating status
- Operating
- Headcount range
- 1–10 employees
- Short description
- Treasure Island Wines is a privately held, founder-owned urban winery on San Francisco's Treasure Island producing small-batch artisan California wines, selling direct-to-consumer through an on-site tasting room, e-commerce shipping to four states, a tiered wine club, group tastings, and private events.
- Ownership category
- akta.pro rank
Treasure Island Wines industry classification
Industry- Product category
- Artisan Urban Winery
- NAICS
- Wineries (31213), Beer, Wine, and Liquor Retailers (4453), Drinking Places (Alcoholic Beverages) (7224)
- akta.pro primary industry
- Wineries & Vineyards (Tasting Rooms) (THAFALAE)
- akta.pro secondary industries
- Alcohol Subscription & Wine Clubs (Retail) (CRANABAF), Wine Bars (THAFAEAF)
Keywords
Where Treasure Island Wines is headquartered
LocationHeadquarters
- HQ city
- San Francisco
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Treasure Island Wines business model
Business model- GTM type
- B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Infrastructure, Marketing or Sales
Revenue model
- Direct Wine Sales: On-site tasting room sales and direct-to-consumer wine bottle purchases. Wines include Cabernet Sauvignon, Malbec, Pinot Noir Rosé, Chardonnay, Sauvignon Blanc, Zinfandel, and other varietals and blends. Pricing ranges from $29-$39 per bottle.
- Wine Club Membership: Free-to-join wine club offering 20% discount on all wines and event tickets. Three tiers: Ensign (3 bottles, $95-$150/shipment), Lieutenant (4 bottles, $120-$175/shipment), Captain (6 bottles, $195-$275/shipment). Members receive two shipments annually in Spring and Fall.
- Event Hosting: Group reservations for 4-10 guests, private corporate and personal events, winemaker tastings, and special seasonal events. Minimum reservation requirements and event fees apply.
- E-commerce Shipping: Wine shipped directly to customers. Flat fee of $9.99 in California for orders of three or more bottles; $10.99 for Arizona, Washington, and Oregon.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | TIW 2019 Cabernet Sauvignon Pine Mtn - $39.00 |
| Unit Pricing | Pay-as-you-go | TIW 2021 Malbec Bennett Valley - $32.00 |
| Unit Pricing | Pay-as-you-go | TIW 2023 Sparkling Rose - $29.00 |
| Unit Pricing | Pay-as-you-go | Group Tasting - $10 per person |
| Subscription | Annual | Ensign 3 Bottle Club - $95-$150 per shipment |
| Subscription | Annual | Lieutenant 4 Bottle Club - $120-$175 per shipment |
| Subscription | Annual | Captain 6 Bottle Club - $195-$275 per shipment |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels5 records
Treasure Island Wines product offering
Product offeringCore offering
Treasure Island Wines is a small-batch urban winery that hand-crafts artisan wines from grapes sourced across established California viticulture regions, selling bottles through its on-site tasting room on Treasure Island in San Francisco, a direct-to-consumer e-commerce store, and a tiered wine club subscription program. The winery also generates revenue through group tastings, group reservations, and private corporate/personal event hosting at the facility.
Product overview
Treasure Island Wines is an urban winery offering a portfolio of hand-crafted small-batch artisan wines. The core product line includes varietals such as Cabernet Sauvignon, Malbec, and Sparkling Rose. The winery operates a tiered wine club membership program (Ensign, Lieutenant, and Captain tiers) providing discounts and shipments, alongside group tasting experiences and private event hosting. TIW also hosts partner wineries (Alluvial Wines, Just Enough Wine Company, Sandar and Hem, Stagiaire, Umbriaso, William Lane Wines) as part of its collective model.
Differentiator
Problem solved
Functional benefit
Products and services
- TIW 2019 Cabernet Sauvignon Pine Mountain-Cloverdale Peak A 750ml red wine produced from grapes sourced from the Pine Mountain-Cloverdale Peak region, sold at $39.00 per bottle to individual consumers.
- TIW 2021 Malbec Bennett Valley Sonoma County A 750ml Malbec red wine from Bennett Valley in Sonoma County, sold at $32.00 per bottle to individual consumers.
- TIW 2023 Sparkling Rosé (Pinot Noir Vin Gris) A 750ml sparkling rosé wine made from Pinot Noir grapes (Vin Gris style), sold at $29.00 per bottle to individual consumers.
- TIW Wine Club Membership Free-to-join wine club providing members a 20% discount on all wines and event tickets and 25% off full cases. Three membership tiers (Ensign 3 bottles, Lieutenant 4 bottles, Captain 6 bottles) at $95–$275 per shipment, with two customized shipments per year (Spring and Fall). Members choose between red-only or mixed red/white selections.
- Group Tastings Structured group wine tasting experience for 4–10 guests in which participants taste four wines (red and white) while discussing the wines with the winemaker on site at the Treasure Island tasting room.
- Group Reservations and Private Events Reservable table seating in the outside tasting area for groups of 4–10 guests, plus private corporate and personal event hosting at the urban winery location.
Companies that use Treasure Island Wines
Customer profileNamed customers5 records
Segments2 records
Treasure Island Wines technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature1 record
Treasure Island Wines partnerships and signals
Strategic signalPartnerships
Six partnerships are on record, tiered core.
- UmbriasocoreHosted winery partner in the TIW collective, sharing the philosophy of making affordable luxury artisan wines. Umbriaso produces wines including 2019 Cabernet Franc (Chalk Hill) and 2020 Howell Mountain Napa Zin Blend Rosé.
- Alluvial WinescoreHosted winery partner in the TIW collective, bringing their insights, knowledge, creativity and styles to the winery.
- Just Enough Wine CompanycoreHosted winery partner in the TIW collective, bringing additional variety and winemaking styles to the collective.
- Sandar and HemcoreHosted winery partner in the TIW collective, contributing to the synergy of the urban winery environment.
- StagiairecoreHosted winery partner in the TIW collective, adding to the diversity of winemaking styles and perspectives.
- William Lane WinescoreHosted winery partner in the TIW collective, sharing TIW's philosophy of affordable luxury artisan wines.
Scale indicators3 records
Recent moves6 records
Expansion highlights4 records
Treasure Island Wines competitors and assessment
Company assessmentDirect peers
- Rock Wall Wine Company: Alameda-based urban winery housed in a former naval hangar offering estate and sourced wines, a tasting room, and wine club. Highly comparable as a Bay Area urban winery with a similar hosted-producer ethos.
- Bluxome Street Winery: San Francisco urban winery and tasting room producing small-batch wines from Northern California grapes with a DTC and wine club model. Directly comparable as a city-based, urban winery serving Bay Area wine enthusiasts.
- Donkey & Goat Winery: Berkeley-based small-batch natural winery with a tasting room and wine club focused on artisan, low-intervention wines. Directly comparable in scale, philosophy, and Bay Area urban winery positioning.
- Cornerstone Cellars: Napa-based boutique winery with tasting room, wine club, and DTC focus on Cabernet and Chardonnay. Comparable small-batch, wine-club-driven DTC model at a slightly higher price point.
- Broc Cellars: Berkeley urban winery producing small-lot, terroir-driven wines with a tasting room and DTC focus. Comparable artisan ethos, scale, and Bay Area urban distribution model.
- JC Cellars: Oakland-based urban winery with a tasting room, wine club, and small-lot California wines. Directly comparable Bay Area urban winery targeting local enthusiasts and DTC consumers.
- Tank18 Winery: Spreckels/Half Moon Bay urban-style winery with tasting room, wine club, and event hosting. Comparable urban tasting room model with wine club subscription revenue.
Broad incumbents
- St. Francis Winery & Vineyards: Established Sonoma County winery with broad portfolio, tasting room, and wine club. Comparable Sonoma-sourced wine offerings and tiered wine club model at larger scale.
Others
- Wine.com: Largest online wine retailer in the US, shipping to most states. Comparable as a DTC alcohol e-commerce channel but operates at vastly different scale across many producers.
Regional players
- Ruby Hill Winery: Livermore Valley winery with tasting room, events, and wine club. Comparable tasting-room-and-club model serving Bay Area consumers in a different AVA.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Treasure Island Wines social profiles
Digital presenceTreasure Island Wines financial estimates
Financial estimateRevenue estimate
Valuation estimate
Treasure Island Wines leadership team
Management profileNumber of profiles
Treasure Island Wines funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Treasure Island Wines M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Treasure Island Wines
What does Treasure Island Wines do?
Treasure Island Wines is a small-batch urban winery that hand-crafts artisan wines from grapes sourced across established California viticulture regions, selling bottles through its on-site tasting room on Treasure Island in San Francisco, a direct-to-consumer e-commerce store, and a tiered wine club subscription program. The winery also generates revenue through group tastings, group reservations, and private corporate/personal event hosting at the facility.
Is Treasure Island Wines a public or private company?
Treasure Island Wines is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Treasure Island Wines founded?
Treasure Island Wines was founded in 2007. It employs 1 to 10 people.
Where is Treasure Island Wines based?
Treasure Island Wines is headquartered in San Francisco, United States, in the North America region.
How does Treasure Island Wines make money?
Four revenue lines are on record. Direct Wine Sales are the primary driver. The others are wine Club Membership, event Hosting and E-commerce Shipping.
Who are Treasure Island Wines's main competitors?
Direct peers on record are Rock Wall Wine Company, Bluxome Street Winery, Donkey & Goat Winery, Cornerstone Cellars, Broc Cellars, JC Cellars and Tank18 Winery. St. Francis Winery & Vineyards is listed as a broad incumbent. Wine.com is listed as an others. Ruby Hill Winery is listed as a regional player.
Does Treasure Island Wines have an API?
No public API is recorded for Treasure Island Wines.
What industry is Treasure Island Wines in?
Treasure Island Wines's product category is Artisan Urban Winery. Its primary akta.pro industry code is THAFALAE, Wineries & Vineyards (Tasting Rooms), with a secondary code of CRANABAF, Alcohol Subscription & Wine Clubs (Retail). Its NAICS code is 31213.