Private Equity Firm Financial Services

Brookside Capital Partners

Stamford, Connecticut, United States

Formerly known as Brookside Equity Partners, Brookside Mezzanine Partners, Brookside Mezzanine Partners (mezzanine)

Brookside Capital Partners is a provider of flexible capital solutions to small and mid-sized companies across the United States, investing via subordinated debt, unitranche loans, structured junior capital, and minority equity to support buyouts, recapitalizations, strategic acquisitions, and growth capital.

Focus Areas
Mezzanine finance, Subordinated debt, Unitranche loans
Website
brooksidecp.com

Tracked deals

57

57 tracked deals across 2011-2026.

Recent pace

4

4 tracked deals announced in the last 12 months.

Deal mix

Buyout

24 buyout · 12 addon · 12 recapitalization

Brookside Capital Partners Acquisition Volume by Year

Last 8 years

Acquisition volume by year Annual acquisition counts for the last 8 years for Brookside Capital Partners. 6 2019 5 2020 12 2021 7 2022 8 2023 10 2024 4 2025 ~5 est. 3 2026
Actual Full-year estimate

Supporting Data

Recent Transactions

Showing the 12 most recent of 57 tracked deals for Brookside Capital Partners.

  • Gemini Investors and Brookside Capital Partners Invest in Winterberry Landscaping’s Acquisition of Willie C. & Sons Landscaping
    May 6, 2026
    Buyer
    Gemini Investors, Brookside Capital Partners, Winterberry Landscaping, LLC
    Target
    Willie C. & Sons Landscaping
    Industry
    Industrial Services
    Location
    Connecticut, United States
    Type
    Buyout

    Brookside Capital Partners provided subordinated debt and preferred equity co-investment to support Winterberry Landscaping, a portfolio company of Gemini Investors, in acquiring Willie C. & Sons Landscaping. The combined platform is intended to create a scaled landscaping operator across New England with offerings spanning landscaping, irrigation, and snow removal.

  • CQL Capital Leads Strategic Growth Investment in Erie Strayer
    February 11, 2026
    Buyer
    CQL Capital, Star Mountain Capital, UMB Private Investments, Tecum Capital, Brookside Capital Partners, Everside Capital Partners
    Target
    Erie Strayer
    Industry
    Industrial Services
    Location
    Pennsylvania, United States
    Type
    Growth capital

    CQL Capital led a strategic investment in Erie Strayer, a fourth-generation, family-owned concrete batching solutions company. The deal is intended to support Erie Strayer’s long-term growth, innovation, employee development, and expanded aftermarket service, with management led by CEO Kyle Strayer remaining in place.

  • CQL Capital and Star Mountain Capital Invest in Erie Strayer
    February 11, 2026
    Buyer
    CQL Capital, Star Mountain Capital, UMB Private Investments, Tecum Capital, Brookside Capital Partners, Everside Capital Partners
    Target
    Erie Strayer
    Industry
    Industrial Services
    Location
    United States
    Type
    Growth capital

    CQL Capital led a strategic investment in Erie Strayer, a fourth-generation, family-owned concrete batching solutions company. The investment (co-led with Star Mountain Capital) is intended to support long-term growth initiatives, including innovation, employee development, and expanded aftermarket service and parts capabilities.

  • Graycliff Partners Invests in Vytex
    September 16, 2025
    Buyer
    Graycliff Partners, Brookside Capital Partners
    Target
    Vytex, LLC
    Industry
    Building Products
    Location
    Maryland, United States
    Type
    Buyout

    Graycliff Partners has made an investment in Vytex, LLC, a Laurel, Maryland-based manufacturer and installer of vinyl windows and patio/storm doors. Brookside Capital Partners provided subordinated debt and an equity co-invest to support Graycliff's investment; Graycliff and Vytex management plan to pursue organic and inorganic growth, new product development and geographic expansion.

  • Valesco Industries and Brookside Capital Partners Complete Majority Recapitalization of Five Lakes Manufacturing
    July 9, 2025
    Buyer
    Valesco Industries, Brookside Capital Partners
    Target
    Five Lakes Manufacturing
    Seller
    Selling shareholders
    Industry
    Manufacturing
    Location
    Michigan, United States
    Type
    Recapitalization

    Dallas-based private equity firm Valesco Industries completed a majority recapitalization of Five Lakes Manufacturing, a Clinton Township, Michigan manufacturer of interior commercial and architectural wood doors. Brookside Capital Partners provided subordinated debt and an equity co-investment alongside the selling shareholders, with Comerica Bank as senior lender; the transaction will support growth, new machinery investments and geographic expansion.

  • Corridor Capital Invests in Dart Appraisal
    March 31, 2025
    Buyer
    Corridor Capital, LLC, Brookside Capital Partners
    Target
    Dart Appraisal, LLC
    Industry
    Professional Services
    Location
    Michigan, United States
    Type
    Growth capital

    Corridor Capital has made a growth investment in Dart Appraisal, a nationwide appraisal management company headquartered in Troy, Michigan, with Dart's management team (including CEO Michael Dresden) remaining as material owners. Brookside Capital Partners provided debt financing and an equity co-investment to support the transaction; Corridor will work with management to accelerate growth through investments in sales, technology, marketing and strategic acquisitions.

  • Champlain Capital Partners Acquires Agam Group, Ltd.; Brookside Provides Financing
    January 7, 2025
    Buyer
    Champlain Capital Partners, Brookside Capital Partners
    Target
    Agam Group, Ltd.
    Industry
    Manufacturing
    Location
    Maryland, United States
    Type
    Buyout

    Champlain Capital Partners has acquired Agam Group, Ltd., a turnkey manufacturer of adaptable structures for trade shows, events and retail interiors headquartered in Elkridge, Maryland. Brookside Capital Partners provided senior debt and an equity co-investment to support Champlain's acquisition and to back Agam's management team as the company pursues growth.

  • Paramount Mechanical (Stonebridge) Acquires Math Mechanical
    November 21, 2024
    Buyer
    Paramount Mechanical Corporation, LLC, Stonebridge Partners
    Target
    Math Mechanical, Inc.
    Industry
    HVAC & Mechanical
    Location
    Virginia, United States
    Type
    Addon

    Paramount Mechanical Corporation, a Stonebridge Partners portfolio company, acquired Math Mechanical, Inc. on November 21, 2024. The add-on expands Paramount’s HVAC, plumbing and medical-gas capabilities in southern Virginia and strengthens relationships with hospital and commercial customers in the Newport News/Norfolk/Virginia Beach region.

  • Branford Castle Partners Acquires Hoffman Engineering
    November 12, 2024
    Buyer
    Branford Castle Partners, Brookside Capital Partners, O2 Sponsor Finance
    Target
    Hoffman Engineering
    Seller
    Trident Maritime Systems, J.F. Lehman & Company (investment affiliates mentioned)
    Industry
    Aerospace & Defense
    Location
    Connecticut, United States
    Type
    Buyout

    Branford Castle Partners has acquired Hoffman Engineering, a Stamford-based maker of night-vision test equipment, imaging lighting systems and commercial aviation LED specialty lighting, from Trident Maritime Systems. The transaction was financed with senior debt from O2 Sponsor Finance and mezzanine debt and an equity co-investment from Brookside Capital Partners; Hoffman’s management team will remain in place and terms were not disclosed.

  • Brookside Capital Partners and Mason Wells Provide Growth Capital to SWAT Environmental
    October 16, 2024
    Buyer
    Brookside Capital Partners, Mason Wells
    Target
    SWAT Environmental
    Industry
    Environmental Services
    Location
    Wisconsin, United States
    Type
    Growth capital

    Brookside Capital Partners has invested in SWAT Environmental, partnering with Mason Wells to provide subordinated debt to accelerate the company's growth and market expansion. SWAT Environmental, founded in 1988, is the largest radon mitigation services firm in the United States and serves customers across more than 30 states.

  • Sound Growth Partners Acquires Stueve Construction
    October 1, 2024
    Buyer
    Sound Growth Partners, Brookside Capital Partners, Capitala Group, Other investors (unnamed)
    Target
    Stueve Construction
    Industry
    Agriculture
    Location
    Iowa, United States
    Type
    Buyout

    Seattle-based private equity firm Sound Growth Partners acquired Stueve Construction, a leading U.S. designer and builder of bulk fertilizer storage facilities, with capital provided by Brookside Capital Partners, Capitala Group and other investors. The transaction will support Stueve's next phase of growth and innovation as the company continues to serve major fertilizer manufacturers, distributors, retailers and cooperatives.

  • Adams Flavors Acquires Goodman's Vanilla
    September 29, 2024
    Buyer
    Adams Flavors, Foods & Ingredients, LLC, Midwest Growth Partners, Valesco Industries, Deason Capital Services (Deason Capital), Brookside Capital Partners
    Target
    Goodman's Vanilla (Goodman's Flavorings)
    Industry
    Food & Beverage
    Location
    Missouri, United States
    Type
    Addon

    Adams Flavors, Foods & Ingredients, a portfolio company backed by Midwest Growth Partners and partners, completed the acquisition of Goodman's Vanilla (Goodman's Flavorings) on September 29–30, 2024. Goodman's, a Marshfield, Missouri manufacturer of vanillas, flavor extracts and colors, is Adams' first add-on and will support regional expansion of Adams' branded products and the addition of spice offerings under the Goodman's banner.

Related Acquisition Pages

Manufacturing Buyers & Acquisitions 13 tracked deals by Brookside Capital Partners. Industrial Services Buyers & Acquisitions 6 tracked deals by Brookside Capital Partners. Building Products Buyers & Acquisitions 5 tracked deals by Brookside Capital Partners. Marketing & Advertising Buyers & Acquisitions 4 tracked deals by Brookside Capital Partners. Acquisitions in Pennsylvania 7 tracked deals by Brookside Capital Partners. Acquisitions in Florida 5 tracked deals by Brookside Capital Partners. Acquisitions in Texas 5 tracked deals by Brookside Capital Partners. Acquisitions in California 3 tracked deals by Brookside Capital Partners.

Selling a company? Get in front of buyers like Brookside Capital Partners

Turn tracked acquisition activity into an outreach-ready buyer list.

Find buyers like these →