Our investments are headquartered in the US and Canada.  Their operations span five continents and 21 countries.

  • Healthcare

    42 North DentalUnrealized

    42 North Dental

    Waltham, Massachusetts

    42 North Dental is a leading dental practice management company in the New England region.

  • Accent Food Services

    Business & Consumer Services
    Business & Consumer Services

    Accent Food ServicesUnrealized

    Accent Food Services

    Austin, Texas

    A leading provider of customized fresh food, snacks, and refreshment services to businesses, educational institutions, and property management companies.

  • Healthcare

    Active DayUnrealized

    Active Day

    Trevose, PA

    Provider of adult day care health services at 90+ centers across the United States.

  • Acuant

    Software & Technology
    Software & Technology



    Los Angeles, CA

    Provider of an identity verification platform, including document authentication, facial recognition, and data capture solutions.

  • Healthcare

    Advanced DermatologyRealized

    Advanced Dermatology

    Maitland, Florida

    Advanced Dermatology & Cosmetic Surgery is a dermatology-focused physician practice management company, with clinics around the United States which provide clinical, cosmetic, and pathology services. ADCS also provides billing and coding services for third-party dermatology practices under the Ameriderm trade name.

  • AI Fire

    Business & Consumer Services
    Business & Consumer Services

    AI FireUnrealized

    AI Fire

    Long Beach, CA

    A leading provider of fire and life safety services, including inspection, service, customized work orders, and installation for fire alarms, sprinklers, fire extinguishers, and other fire suppression systems.

  • AllOver Media

    Business & Consumer Services | Software & Technology
    Business & Consumer Services | Software & Technology

    AllOver MediaUnrealized

    AllOver Media

    Minneapolis, MN

    Operates the largest alternative out-of-home media platform in the United States.

  • Alltran

    Business & Consumer Services
    Business & Consumer Services



    Houston, Texas

    Third-party contingency debt collection services for financial services, healthcare, and education end markets.

  • Healthcare

    Altasciences Clinical ResearchUnrealized

    Altasciences Clinical Research

    Laval, Quebec

    Leading early phase contract research organization (CRO) in North America.

  • Healthcare

    Axia Women’s HealthUnrealized

    Axia Women’s Health

    Voorhees, New Jersey

    Axia Women’s Health is a provider of women’s healthcare services with over 50 locations in Pennsylvania and New Jersey. Axia offers obstetrical, gynecological, laboratory, mammography, fertility, and general women’s health services.

  • Bridgeport Tank Trucks

    Business & Consumer Services | Industrials | Energy
    Business & Consumer Services | Industrials | Energy

    Bridgeport Tank TrucksRealized

    Bridgeport Tank Trucks

    Bridgeport, Texas

    Bridgeport Tank Trucks is a leading independent provider of fluid transport and disposal services and equipment rentals for oilfield production and drilling applications in the Barnett Shale. Primary services include completion and production-related saltwater transport and disposal, and frac tank and related equipment rentals at the well site.

  • Cadence Education

    Business & Consumer Services
    Business & Consumer Services

    Cadence EducationRealized

    Cadence Education

    Scottsdale, Arizona

    Cadence Education is a national operator of full and part-time early child care centers in North America.

  • Chartis Group

    Business & Consumer Services
    Business & Consumer Services

    Chartis GroupUnrealized

    Chartis Group

    Chicago, IL

    The Chartis Group is an advisory consulting and software analytics service provider to healthcare customers

  • Healthcare

    Chesapeake IRBRealized

    Chesapeake IRB

    Columbia, Maryland

    Chesapeake is a leading provider of independent institutional review board (“IRB”) services to major pharmaceutical, biotech and medical device companies, universities, academic medical centers, and hospital systems. Chesapeake performs independent reviews of proposed research projects and principal investigators to assure the protection and welfare of human subjects in clinical trials.

  • CIBT Global

    Business & Consumer Services
    Business & Consumer Services

    CIBT GlobalRealized

    CIBT Global

    McLean, Virginia

    CIBT Global is the world’s largest expeditor of travel documents for business and leisure travel, serving Fortune 500 companies, government agencies, travel management companies, and major tour and cruise line operators.

  • Cinelease

    Business & Consumer Services
    Business & Consumer Services



    Burbank, California

    Cinelease rents motion-picture lighting and grip equipment to the television, feature film, commercial, and music video industries.

  • Coast Crane Company

    Business & Consumer Services
    Business & Consumer Services

    Coast Crane CompanyRealized

    Coast Crane Company

    Seattle, Washington

    Coast Crane is a leading distributor of cranes and personnel lifts to the construction industry in the western United States.

  • CoolSys

    Business & Consumer Services
    Business & Consumer Services



    Anaheim, CA

    CoolSys provides refrigeration and HVAC maintenance and system installation services to grocery retailers, convenience store chains, telecommunication hubs, and other industrial customers in the United States.

  • Corepoint Health

    Software & Technology
    Software & Technology

    Corepoint HealthRealized

    Corepoint Health

    Frisco, Texas

    Corepoint Health is a provider of interoperability software to healthcare providers.

  • Healthcare

    Correct Care SolutionsRealized

    Correct Care Solutions

    Nashville, Tennessee

    Correct Care Solutions is a comprehensive healthcare solutions provider to local, county, and state correctional facilities. CCS provides daily healthcare to over 65,000 patients in correctional facilities throughout 21 states.

  • Corsearch

    Software & Technology
    Software & Technology



    New York, NY

    Provider of trademark establishment and protection software to large corporations and law firms worldwide.

  • Cozzini Brothers

    Business & Consumer Services
    Business & Consumer Services

    Cozzini BrothersRealized

    Cozzini Brothers

    Des Plaines, Illinois

    Cozzini is a leading provider of knife sharpening and rental services to the foodservice industry nationwide with 16 locations across the country. Cozzini’s 20,000 customers include national restaurant chains, independent restaurants, grocery stores, institutional and commercial kitchens, and other foodservice establishments.

  • Data Intensity

    Business & Consumer Services | Software & Technology
    Business & Consumer Services | Software & Technology

    Data IntensityRealized

    Data Intensity

    Bedford, Massachusetts

    Data Intensity is a leading provider of cloud services for enterprise applications such as the Oracle E-Business Suite, as well as surrounding technologies from other vendors. Primarily serving medium to large enterprises, Data Intensity offers end-to-end outsourcing solutions, disaster recovery, and professional services focused on enterprise applications and technologies from Oracle and Microsoft.

  • Endurance International Group

    Business & Consumer Services | Software & Technology
    Business & Consumer Services | Software & Technology

    Endurance International GroupRealized

    Endurance International Group

    Burlington, Massachusetts

    Endurance International Group is a leading provider of shared web hosting services to small businesses.

  • EnviroVac

    Business & Consumer Services
    Business & Consumer Services



    Savannah, GA

    Provider of cleaning and maintenance services to the power & utilities, pulp & paper, chemical, steel, and manufacturing industries.

  • Healthcare

    Great Expressions Dental CentersRealized

    Great Expressions Dental Centers

    Bloomfield Hills, Michigan

    Great Expressions Dental Centers is a dental practice management company providing professional corporations general and specialty services including endodontics, orthodontics, oral surgery, pedodontics, and periodontics.

  • HALO Branded Solutions

    Business & Consumer Services
    Business & Consumer Services

    HALO Branded SolutionsRealized

    HALO Branded Solutions

    Sterling, Illinois

    HALO Branded Solutions is a leading promotional products distributor offering innovative client solutions and branding expertise through a nationwide sales force.

  • Help/Systems

    Software & Technology
    Software & Technology



    Eden Prairie, Minnesota

    Help/Systems is a provider of automated operations and business intelligence software for the IBM System i market.

  • Herald Media

    Business & Consumer Services
    Business & Consumer Services

    Herald MediaRealized

    Herald Media

    Boston, Massachusetts

    Herald Media Holdings is the parent company of the Boston Herald, one of the leading major metropolitan daily newspapers in the U.S.  The company also publishes several daily papers for communities throughout eastern Massachusetts.

  • In The Swim

    Business & Consumer Services
    Business & Consumer Services

    In The SwimRealized

    In The Swim

    West Chicago, Illinois

    In The Swim is a multi-channel direct marketer of swimming pool supplies and equipment to the residential and commercial swimming pool markets in the United States. Products include chemicals, covers and liners, equipment, parts, and accessories, which are sold through catalog, internet, telesales, retail, and wholesale channels.

  • Infrastructure Services Holdings

    Business & Consumer Services
    Business & Consumer Services

    Infrastructure Services HoldingsRealized

    Infrastructure Services Holdings

    Infrastructure Services Holdings was formed by Audax through a strategic alliance among three leading regional site preparation companies in the Florida market.

  • Healthcare

    Injured Workers PharmacyRealized

    Injured Workers Pharmacy

    Andover, Massachusetts

    Injured Workers Pharmacy is a specialty mail order pharmacy focused on injured workers who qualify for workers compensation. As an advocate for those who have been injured, Injured Workers Pharmacy takes the financial burden out of the medication process by shipping medications directly to the patient and collecting payment from the insurance company.

  • Healthcare

    Lifemark HealthUnrealized

    Lifemark Health

    Toronto, Ontario

    Lifemark Health and Viewpoint Medical Assessments are leading providers in the physiotherapy, rehabilitation, and medical assessment markets in Canada. Lifemark and Viewpoint provide treatment and assessment services for patients in over 100 clinics, long term care centers, retirement homes and communities across Canada.

  • Liquid Environmental Solutions

    Business & Consumer Services
    Business & Consumer Services

    Liquid Environmental SolutionsUnrealized

    Liquid Environmental Solutions

    Irving, TX

    Liquid Environmental Solutions (“LES” or the “Company”) is a provider of non-hazardous liquid waste management and disposal services. LES collects, processes and beneficially recovers materials from a wide variety of waste sources, including grease traps, oil water separators, grit traps, general industrial, and used cooking oil. The Company provides these services for the restaurant, hospitality, automotive, manufacturing, power plant, petrochemical and other industries, as well as environmental services companies.

  • Healthcare

    Meridian Behavioral HealthUnrealized

    Meridian Behavioral Health

    New Brighton, Minnesota

    Meridian Behavioral Health is a provider of addiction treatment services at residential and outpatient facilities.

  • MNX Global Logistics

    Business & Consumer Services
    Business & Consumer Services

    MNX Global LogisticsUnrealized

    MNX Global Logistics

    Long Beach, CA

    Provider of customized transportation and logistics services for time critical, high-value goods.

  • Mobileum

    Software & Technology
    Software & Technology



    Santa Clara, California

    Headquartered in Santa Clara, California, Mobileum is a leading provider of mobile telecom roaming and analytics software.

  • Numotion




    Rocky Hill, Connecticut

    Numotion is a national supplier of complex rehabilitation equipment and assistive technologies with over 130 locations across the United States.  Numotion provides mobility and seating solutions including power wheelchairs, manual and lightweight wheelchairs, adaptive seating, and related rehabilitative equipment.

  • Questex Media Group

    Business & Consumer Services
    Business & Consumer Services

    Questex Media GroupRealized

    Questex Media Group

    Newton, Massachusetts

    Questex Media publishes and produces trade publications, exhibitions, conferences, and websites spanning five industries: technology, industrial and specialty products, beauty, travel, and entertainment.

  • Reed Group

    Business & Consumer Services | Healthcare
    Business & Consumer Services | Healthcare

    Reed GroupRealized

    Reed Group

    Westminster, Colorado

    Reed Group is a provider of proprietary, evidence-based return-to-work guidelines and outsourced absence and clinical case management services that assist in the reduction of disability and absence costs for employers.

  • RelaDyne

    Industrials | Chemicals
    Industrials | Chemicals



    Cincinnati, OH

    RelaDyne is a leading distributor of lubricant, fuel, and diesel exhaust fluid providing customers with integrated reliability management services for industrial and commercial businesses.  RelaDyne’s distribution platform spans more than 40 locations serving customers across the Central, Mid-Atlantic, and Southern U.S.

  • RESA Power Solutions

    Business & Consumer Services | Industrials | Materials
    Business & Consumer Services | Industrials | Materials

    RESA Power SolutionsRealized

    RESA Power Solutions

    Houston, Texas

    RESA Power Solutions is a provider of life extension solutions for electrical distribution and control equipment.

  • Rogue Wave Software

    Software & Technology
    Software & Technology

    Rogue Wave SoftwareRealized

    Rogue Wave Software

    Louisville, Colorado

    Rogue Wave Software is the largest independent provider of cross-platform software development tools and embedded components in the world. Rogue Wave tools, libraries, and services enable developers to write better code, faster.

  • Smart Care Equipment Solutions

    Business & Consumer Services
    Business & Consumer Services

    Smart Care Equipment SolutionsUnrealized

    Smart Care Equipment Solutions

    St. Paul, MN

    Provider of commercial kitchen repair, maintenance services, and parts to the U.S. commercial food service industry.

  • TMP Directional Marketing

    Business & Consumer Services
    Business & Consumer Services

    TMP Directional MarketingRealized

    TMP Directional Marketing

    New York, New York

    TMP Directional Marketing is a leading certified marketing representative, placing advertising for its national clients into Yellow Pages and Internet based digital directories.

  • Healthcare

    TridentUSA Health ServicesUnrealized

    TridentUSA Health Services

    Sparks, MD

    Trident USA is the leading national provider of bedside diagnostics services offering mobile x-ray, ultrasound, teleradiology and laboratory services to skilled nursing home, assisted living, home healthcare, hospice and correctional markets.

  • Healthcare

    United Urology GroupUnrealized

    United Urology Group

    Owings Mills, MD

    United Urology Group is a urology physician practice management company with clinical offices and ambulatory surgical centers across Maryland and Tennessee. The company provides general urologic care and has ancillary service lines including surgical centers, pharmacy, radiation therapy, and a pathology lab.

  • US Security Associates

    Business & Consumer Services
    Business & Consumer Services

    US Security AssociatesUnrealized

    US Security Associates

    Atlanta, Georgia

    US Security Associates is a provider of private security and risk mitigation services to the entertainment, high-end retail, financial services, commercial property management, and education verticals.

  • Van Pool Transportation

    Business & Consumer Services
    Business & Consumer Services

    Van Pool TransportationUnrealized

    Van Pool Transportation

    Wilbraham, MA

    Van Pool Transportation, headquartered in Wilbraham, MA, is a leading provider of outsourced transportation services to K-12 students with special needs in Massachusetts, Connecticut, and New Hampshire. Van Pool, which serves over 100 school districts and 5,000 students today, strives to fulfill its mission of positively and significantly contributing to the success of the students, schools and communities it serves.

  • Healthcare

    Vision Group HoldingsUnrealized

    Vision Group Holdings

    West Palm Beach, FL

    Leading provider of refractive surgery with over 120 locations across North America.

  • WellSpring Consumer Healthcare

    Business & Consumer Services
    Business & Consumer Services

    WellSpring Consumer HealthcareUnrealized

    WellSpring Consumer Healthcare

    Sarasota, FL

    Marketer of iconic over-the-counter (“OTC”) personal health brands in the skin care, feminine hygiene and gastrointestinal care categories.