What Stonegate does

Stonegate Group LLC is a privately held real estate development and property management company headquartered in Natick, Massachusetts. Founded in 1988 by Sean McGrath as MR Properties, the firm owns and manages a portfolio of 31 properties exceeding $200 million in commercial, residential, mixed-use, and solar assets across Greater Boston and MetroWest Massachusetts, including 500+ residential units and over 400,000 sq ft of commercial space.

The company's core business spans three integrated lines: (1) full-service property management of commercial (retail, office, industrial), residential, and mixed-use properties with 24/7 maintenance; (2) real estate development including historic preservation and adaptive reuse projects such as the Penny Savings Bank, Piccadilly Place, and the Legion Condominium; and (3) solar energy installations totaling 3,218.84 kWDC across portfolio properties via Net Metering Credit sales (to HallKeen Management) and SREC programs. Revenue is generated through recurring rental income, one-time development project sales, and solar energy transactions.

Stonegate's go-to-market is sales-led and relationship-driven, with acquisitions handled directly by President Dean Calivas and leasing managed through the company's website and direct outreach. The company operates without institutional or PE backing and remains founder- and family-controlled, with Sean McGrath as CEO and James McGrath as VP/Senior Project Manager. Recent strategic activity has been concentrated in 2022, including the $26.75 million acquisition of 2 Newbury Street in Boston from Burberry Limited, the acquisition of 134 Flanders Road in Westborough, and the acquisition of 278-284 Grove Street in Worcester.

Name

Stonegate

Legal name

Stonegate Group LLC

Website

https://stonegatellc.com

Company type

Private

Founded year

1988

Operating status

Operating

Headcount range

11–50 employees

Short description

Stonegate Group LLC is a privately held real estate development and property management firm founded in 1988, managing 31 commercial, residential, mixed-use, and solar properties valued at over $200 million across Greater Boston and MetroWest Massachusetts.

Ownership category

akta.pro rank

Headquarters

HQ city

Natick

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Property Management and Leasing: Stonegate generates revenue through managing and leasing commercial, residential, and industrial properties. The company owns and manages a portfolio of over $200 million in properties, including retail, office, and industrial spaces.
2. Real Estate Development: Revenue from development projects including redevelopment of historic properties, mixed-use developments, and new construction. Projects include residential units, commercial spaces, and solar installations.
3. Solar Energy Systems: Stonegate generates revenue through solar energy installations on their properties, selling Net Metering Credits to entities like HallKeen Management for use by Affordable Housing buildings. The company has installed multiple solar systems including 1,070 kW at 92 Blandin Avenue and participates in Solar Renewable Energy Certificate (SREC) programs.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

Stonegate Group LLC is a real estate development and property management company that acquires, develops, and manages commercial, residential, mixed-use, and solar properties in the Greater Boston area. The company provides ongoing property management services including maintenance, leasing, and tenant relations, while also undertaking new development projects and integrating solar energy systems into its portfolio.

Product overview

Stonegate Group LLC is a full-service real estate development and property management company offering a portfolio of integrated services. The company operates as a unified real estate services platform combining property management (with 24/7 maintenance), commercial development (retail, office, industrial), residential development (luxury apartments and condominiums), and solar energy systems. Key named products include Park Village residential properties, the Legion Condominium at 13 West Central Street, Stonegate Industrial Park in Framingham, Piccadilly Place in Westborough, the Arcade Building rehabilitation, and 21 Summer Street mixed-use development. Solar offerings span rooftop installations and solar farms across multiple Massachusetts locations.

Differentiator

Problem solved

Functional benefit

Products and services

• Commercial Property Management

Quantifiable outcome

• Reduced carbon footprint equivalent to 199 cars commuting to work through 1,070 kW solar installation at 92 Blandin Avenue
• +2 more outcomes

Named customers9 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Seven partnerships are on record, tiered core and minor.

• Taylor Consulting & ContractingcoreImplementation/ SI/ Consulting PartnerTaylor Consulting & Contracting facilitated the 1,070 kW solar project at 92 Blandin Avenue in Framingham. Bill Riordan, President of Taylor Consulting, helped evaluate, procure and realize solar investments across Stonegate's portfolio. The company provided expertise in green technology and solar panel decision-making.
• HallKeen ManagementminorOthersHallKeen Management purchased Net Metering Credits generated by Stonegate's solar installations for use by their Affordable Housing buildings in Massachusetts. Jesse Curll, Senior Asset Manager of HallKeen, noted the arrangement benefits buildings that could not go solar otherwise.
• The Center for Arts in Natick (TCAN)minorStrategic or Co-development PartnerStonegate pledged to match up to $50,000 in donations for TCAN's $1.7 million capital campaign to transform their Summer Street firehouse into a 120-seat art house movie theater. Sean McGrath serves as a TCAN neighbor and supporter, currently renovating the neighboring American Legion building.
• Lim Design StudiocoreTechnology or IntegrationBoston-based architectural firm partnered with Stonegate on multiple projects including Piccadilly Place renovation in Westborough and American Legion building redevelopment in Natick. Diane Lim, principal architect, worked on historic preservation aspects.
• Finegold Alexander ArchitectscoreTechnology or IntegrationArchitectural firm collaborated with Stonegate on St. Patrick's Parish redevelopment project, working on design that would fit aesthetically with the neighborhood.
• PointsNorth Construction ManagementcoreImplementation/ SI/ Consulting PartnerConstruction management company partnered with Stonegate on American Legion building renovation project, providing quality craftsmanship and superior design on the 2013 collaboration (Piccadilly Place) and subsequent projects.
• Green Street Power Partners (GSPP)coreTechnology or IntegrationDevelopment Inc., subsidiary of Green Street Solar Power, coordinated the panel installation on the 160,000 square foot rooftop at Stonegate Industrial Park. Swinerton Renewable Energy assisted with the 1 MW solar installation.

Scale indicators18 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• The Bulfinch Companies: A Greater Boston-focused real estate investment, development, and management firm with a comparable regional full-service platform spanning office, residential, and mixed-use properties in New England. Directly comparable business model and target submarket.
• The Grossman Companies: New England-based real estate developer and property manager operating commercial, residential, and mixed-use assets with a comparable mid-market owner/operator profile. Similar size and regional focus to Stonegate.
• Cronin Development Company: Boston-area real estate development firm active in mixed-use, residential, and commercial projects across Greater Boston and MetroWest. Comparable regional developer profile and project types to Stonegate.
• Northland Investment Corporation: Regional real estate investment and development company with a portfolio spanning multifamily, retail, and mixed-use properties in the Northeast. Comparable owner/operator model and mixed-use orientation.
• Trinity Financial: Boston-based developer of mixed-income, mixed-use, and affordable housing communities. Particularly comparable given Stonegate's solar partnership with affordable-housing operator HallKeen and shared focus on community-oriented development.
• Wingate Companies: Northeast-focused real estate investment and development firm specializing in multifamily, mixed-use, and value-add opportunities. Comparable mid-market owner/developer profile with similar geographic concentration.

Broad incumbents

• Beacon Capital Partners: Boston-headquartered institutional real estate investment manager focused on office and mixed-use assets in major U.S. markets. Larger institutional peer in the same regional real estate ecosystem, with overlap in commercial asset focus.
• AvalonBay Communities: Large publicly traded multifamily REIT with significant Greater Boston presence developing and operating apartment communities. Operates at vastly greater scale but competes for similar residential tenants and development sites.
• Lincoln Property Company: Large national multifamily and commercial real estate services firm with significant Boston/New England operations and third-party property management capabilities. Institutional peer providing property management competition in the same geography.

Regional players

• Atlantic Management Inc. Massachusetts-based commercial real estate management and brokerage firm serving owners and tenants across New England. Comparable regional third-party property management operations.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/StonegateGroupLLC
• LinkedInlinkedin.com/company/stonegate-group
• Instagraminstagram.com/stonegategroup

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Stonegate