Advantage Capital - invests in information technology and the Internet, telecommunications and media, health care and life sciences, and energy-related technologies.
Advent International - focuses on telecommunications, software, business services, health care, and life sciences.
Affinity Capital - invests in seed and early-stage health care companies.
Agio Capital Partners - private investment firm interested in buyouts, corporate divestitures and growth financings.
Allegra Partners - invests in Internet-driven telecommunications, software, and service companies.
Alliance Technology Ventures - early-stage venture capital firm specializing in life sciences and information technology startups.
Allison Johnson Venture Partners - invests in early stage biotech, Internet, and technology based companies in the Pacific Northwest and the Western US.
Alloy Ventures, Inc. - provider of seed and early stage funding to computer, network, Internet, and life science companies.
Alpine Technology Ventures - early stage investment in California-based information technology companies.
Alta Berkeley Associates - early stage financing across Europe for information technology, media, and healthcare companies. Offices in London, Geneva, Boston, and San Francisco.
Alta Communications - invests in service, software, hardware, and asset plays.
Alta Partners - invests in information technology and life sciences companies.
Altira Group LLC - focused on equity capital for seed and early stage companies that develop and commercialize technology for the oil and gas industry.
Altos Ventures - focuses on seed and early-stage investments in high-technology companies.
Amadeus Capital Partners Ltd. - venture capital firm investing in new technologies in the UK and continental Europe.
American Industrial Partners - private equity firm that has been investing in private and public companies since .
Ampersand Ventures - invests in communications, information technology, software, life sciences, and specialty materials and chemicals.
Atlantic Coastal Ventures - provides venture capital for technology, broadcast, telecommunications, and industry consolidations.
Atlas Venture - early stage venture capital firm investing in communications, IT, and life sciences companies.
Atrium Capital - provides capital to emerging growth companies and select private equity situations.
August Capital - invests in information technology companies.
Aurora Funds, Inc. - venture capital firm that invests primarily in emerging technology-based companies in the Southeastern United States.
Austin Ventures - invests in early-stage technology companies.
Avalon Investments - offers capital to emerging technology organizations.
AVI Capital, L.P. - partnership specializing in seed and early-stage investments in high-technology companies.
Aweida Capital Management - invests in companies focusing on data storage, software, and the life science industries.
BA Venture Partners - invests in broadband and wireless communications, internet infrastructure software and services, and biotechnology.
Barrington Partners - invests in early and seed stage companies in networking, Internet services and software, and digital media markets.
Batterson Venture Partners - invests in the telecommunications and information technology, Internet, software, medical devices, biotechnology, pharmaceuticals, and advanced materials industries.
Battery Ventures - invests in companies across the communications, software, and Internet/eCommerce industries.
Bay Partners - invests in providers of wireline and wireless communications equipment.
Bedrock Capital Partners - focuses on early stage investments in the Internet, communications, and healthcare markets.
Beer & Partners - specialises in helping clients to find investment capital.
Ben Franklin Technology Partners - promoting innovation and economic growth in Southeastern Pennsylvania by linking entrepreneurs and technology.
Benchmark Capital - manages a venture fund focused on early stage investments in the information technology and consumer related domains.
Bessemer Holdings - private equity firm building the long-term value of the businesses they invest in.
Bessemer Venture Partners - focused on building enterprises through investments in the information technology, healthcare, and retail market sectors.
BG Affiliates LLC - private equity investment firm that provides capital to high quality, middle-market operating companies.
BioAsia Investments - provides funding and consulting services to life sciences companies.
Birchmere Ventures - invests in information infrastructure, e-services, telecommunication software, enterprise software, and bioinformatics.
Blue Chip Venture Company - focuses on companies in the Internet infrastructure, e-commerce, information technology, telecommunications, and healthcare services areas.
Blue Rock Capital - investing in high-growth seed and early-stage companies from New England to the Carolinas.
Blue Water Capital - focuses on investments in information technology and services companies.
Blueprint Ventures - dedicated to early stage communications companies building next generation internet infrastructure.
BlueStar Ventures - focuses on early stage technology, Internet, and telecommunications start-up companies.
Boston Capital Ventures - manages private venture capital partnership funds in software and technology companies for individual and institutional investors .
Boston Millennia Partners - providing early stage private equity financing to companies in the telecommunications, information technology, and healthcare services industries.
Boulder Ventures - concentrates investments in information technology and life sciences companies.
Brentwood Venture Capital - invests equity capital in start-up, early stage and emerging growth high-technology companies.
BRM Capital - invests in Internet and communications infrastructure companies.
Brookstone Partners - private equity investment firm invests in early and mid-stage, public or private companies.
Canaan Partners - invests venture capital, private equity and subordinated debt in entrepreneurial companies in the information technology, medical and healthcare and distribution industries.
Capstone Ventures - early-stage venture capital firm with a focus on technology-enabled service companies, primarily in the outsourced business service and health care markets
Cardinal Partners Venture Capital - makes early-stage investments in healthcare, medical technology, healthcare services, and life sciences.