What Castle Island Brewing Company does

Castle Island Brewing Company is an independent craft microbrewery founded in 2015 and headquartered in Norwood, Massachusetts. The company brews and sells a portfolio of year-round and seasonal beers — including its flagship Keeper IPA, Hi Def Double IPA, Winner IPA, Bo' Shine Czech-style Pilsner, and rotating seasonal and collaboration SKUs — packaged in cans and distributed on draft. Operations span two owned taprooms (Norwood and South Boston), a weekend beer trailer at Ward's Berry Farm in Sharon, MA, and a wholesale distribution program that delivers packaged product to retail accounts. The company also operates private and public event programming at its taprooms and markets direct through Instagram and email newsletter channels.

The business runs on a hybrid D2C-plus-wholesale model: revenue is generated primarily through on-premise taproom sales (consumed on-site, with food via partner Bardo's pizza at Norwood), take-out online orders via Toasttab, a B2B wholesale portal for retail accounts, and seasonal/limited releases that drive scarcity-driven taproom traffic. The customer base is consumer-facing adults in the greater Boston and New England region seeking locally brewed craft beer across styles from IPAs to pilsners to sour ales; the company also engages in co-branded collaborations (Zero Gravity's High Note pale lager, Native Sun Cannabis's terpene-infused hazy IPA, Sullivan's Rickey Business) and charitable tie-ins (Music Drives Us). Leadership is held by founders Adam Romanow (President) and Matt DeLuca (Head Brewer); the company remains privately held with no disclosed parent or institutional investors and operates with 11–50 employees.

Castle Island has won industry recognition including Best IPA in New England at the USBTC 29th Annual Summer Competition for its flagship Keeper, signaling product quality credentials within the regional craft segment. The company is differentiated by its owned-taproom real estate, year-round SKU portfolio, and a steady cadence of collaborations and seasonal releases; it does not appear to operate outside Massachusetts or pursue interstate distribution, and there is no disclosed AI/ML or proprietary technology stack.

Name

Castle Island Brewing Company

Legal name

Castle Island Brewing Company

Website

https://castleislandbeer.com

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

11–50 employees

Short description

Castle Island Brewing Company is an independent Massachusetts craft microbrewery founded in 2015, operating two taprooms (Norwood and South Boston), a seasonal beer trailer, and a wholesale distribution program serving adult craft beer consumers in the New England region with year-round and seasonal SKUs.

Ownership category

akta.pro rank

Product category

Craft Beer / Microbrewery

NAICS

Breweries (312120), Drinking Places (Alcoholic Beverages) (722410)

SIC

Malt Beverages (2082), Retail-Eating & Drinking Places (5810)

akta.pro primary industry

Microbreweries & Craft Breweries (THAFALAC)

akta.pro secondary industries

Brewpubs & Taprooms (On-site Beer Service) (THAFALAA), Craft Beer Bars & Taprooms (THAFAEAG), Beer Brewing & Craft Brewing (AFAFAAAA)

Keywords

• Craft beer brewing
• Taproom operations
• Wholesale beer distribution
• Microbrewery production
• Seasonal beer releases

Headquarters

HQ city

Norwood

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Taproom and On-site Sales: Direct sales of freshly brewed beer consumed on-premise at taproom locations in Norwood and South Boston, Massachusetts.
2. Wholesale Distribution: Distribution of canned and bottled beer products to retail accounts through wholesale channels.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels4 records

Core offering

Castle Island Brewing Company is a Massachusetts-based craft microbrewery that brews and sells a portfolio of year-round and seasonal beers, including IPAs, a Czech-style Pilsner, Double IPAs, sour ales, and collaboration releases. The company distributes its beer through two owned taprooms in Norwood and South Boston, a seasonal beer trailer at Ward's Berry Farm in Sharon, wholesale distribution to retail accounts, and online to-go ordering via Toasttab. The brewery also hosts private and public events and partners with local charities through collaboration brews.

Product overview

Castle Island Brewing Company is a craft brewery offering a portfolio of year-round and seasonal/specialty beers distributed in cans and on draft. The core year-round lineup includes Keeper (flagship IPA), Winner (IPA), Hi Def (Double IPA), and Bo' Shine (Czech-style Pilsner). The seasonal offerings include Powder Gods (Hazy IPA), Gourd Vibrations (Pumpkin Beer), Instant Homies (Sour Ale), Surf Gods (Hazy IPA), and Boardwalk Creamsicle Sour. The company also produces collaboration beers including High Note with Zero Gravity and Rickey Business with Sullivan's Castle Island. Brewery operations include two taproom locations in Norwood and South Boston, Massachusetts, plus a wholesale distribution program.

Differentiator

Problem solved

Functional benefit

Products and services

• Keeper Flagship India Pale Ale at 6.5% ABV and 58 IBU, smooth and balanced with colossal hops. Year-round distribution in cans and on draft. Won Best IPA in New England at the USBTC 29th Annual Summer Competition.
• Winner India Pale Ale at 6% ABV and 50 IBU, neither West Coast nor New England style. Features tangerine, lime, and pomelo aromas; positioned for supreme drinkability.
• Hi Def Double India Pale Ale at 8.4% ABV and 65 IBU. Features tropical hop flavors of fresh melon, papaya, and tangerine with honey malt backbone.
• Bo' Shine Czech-style Pilsner at 4.9% ABV. Crisp and clean with a hint of malt flavor and grassy aroma. Award-winning year-round offering, formerly known as Bohemian Shine.
• Powder Gods Hazy IPA at 7.2% ABV with Citra, Mosaic, Nelson Sauvin, and CTZ hops. New England-style seasonal release inspired by ski and snowboard season.
• Gourd Vibrations Pumpkin Beer at 5.0% ABV brewed with real pumpkin and spices including cinnamon, clove, nutmeg, and ginger for an authentic fall flavor profile.
• Instant Homies Strawberry mango sour ale at 4.8% ABV made with Mosaic hops and strawberry and mango purees. Super limited release available exclusively in taprooms.
• Surf Gods Hazy India Pale Ale at 6.9% ABV brewed with Riwaka, Citra Cryo, and Mosaic Cryo hops. Features notes of passionfruit, mango, papaya, and guava. Seasonally released.
• Boardwalk Creamsicle Sour Orange Creamsicle Sour Ale at 4.6% ABV made with Cara Cara orange and vanilla cream. Nostalgic summer-inspired flavor profile.
• High Note Pale Lager collaboration brew with Zero Gravity at 5.5% ABV. Brewed with New England-grown base malts, MA-grown Cascade hops, and VT-grown Crystal hops. Proceeds support Music Drives Us music education charity.
• Rickey Business Raspberry Lime Lager at 4.2% ABV. Crisp and refreshing with real raspberry and lime. Limited collaboration between Castle Island and Sullivan's Castle Island.

Segments1 record

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Three partnerships are on record, tiered minor.

• Native Sun CannabisminorStrategic or Co-development Partner · 19 April 2026Terpene-infused hazy IPA collaboration releasing on April 19th featuring the Meowzers strain-inspired beer. The collaboration was part of Native Sun Cannabis's third annual terpene-infused hazy IPA release, available at Castle Island's South Boston and Norwood taprooms.
• Zero GravityminorStrategic or Co-development PartnerCollaboration brewing partner for the 'High Note' pale lager, brewed with New England-grown base malts, Mass-grown Cascade hops, and Vermont-grown Crystal hops. Every pour helps support local music education through Music Drives Us.
• Music Drives UsminorGTM or Marketing PartnerCharitable partnership where proceeds from High Note beer sales support local music education programs.

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Direct peers

• Harpoon Brewery: Boston-based craft brewery operating taprooms and broad New England distribution. Directly comparable to Castle Island in geography (Greater Boston), product mix (flagship IPAs, pilsners, seasonals), and taproom-plus-wholesale go-to-market model, though at materially larger scale.
• Trillium Brewing Company: Massachusetts-based craft brewery renowned for IPAs and hazy IPAs with multiple taproom locations. Directly comparable product portfolio (IPAs, pilsners, sours), similar Boston-area retail footprint, and shared competition for USBTC and craft beer awards.
• Night Shift Brewing: Everett, MA craft brewery with taproom locations and broad distribution of IPAs, sours, and lagers. Directly comparable as a fellow Massachusetts craft brewery competing in the same on-premise and wholesale channels with overlapping product styles.
• Tree House Brewing Company: Massachusetts craft brewery famous for IPAs and hazy IPAs, operating destination taprooms. Directly comparable in core product focus (hazy IPAs, IPAs), Massachusetts geography, and emphasis on taproom-driven brand building.
• Lord Hobo Brewing Company: Massachusetts craft brewery producing IPAs and other styles with distribution and taproom presence. Directly comparable as a New England craft peer with overlapping IPA-focused product portfolio and similar go-to-market model.
• Wormtown Brewery: Worcester, MA craft brewery with taproom and New England distribution. Comparable regional craft peer with similar product mix (IPAs, pilsners, seasonals) and Massachusetts footprint, though operating further west of Castle Island's core.

Emerging players

• Idle Hands Craft Ales: Malden, MA craft brewery producing a range of ales and lagers with taproom and limited distribution. Comparable Massachusetts craft peer at smaller scale, sharing the same regional wholesale and taproom channels.

Broad incumbents

• Boston Beer Company (Samuel Adams): Public, large-scale Boston-based brewer (Samuel Adams, Twisted Tea, Truly). Operates as a broad incumbent in the same Massachusetts craft and premium beer category, with substantially greater distribution scale, marketing budget, and brand awareness.

Regional players

• Downeast Cider House: Massachusetts-based beverage producer (cider-focused) with taproom presence and broad distribution. Comparable as a fellow Boston-area craft beverage brand competing for similar on-premise and shelf space, though operating in cider rather than beer.

Others

• Bardo's Bar Pizza: Food service partner operating inside Castle Island's Norwood taproom. Adjacent ecosystem participant that enhances the taproom experience and differentiates Castle Island's on-premise offering.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/castleislandbeer
• Xx.com/cibrewing
• LinkedInlinkedin.com/company/castle-island-brewing-co-

Compliance1 record

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 Castle Island Brewing Company