| 2i Capital | | Focus: investment and intellectual capital network. |
| 3i | | Focus: leading international venture capital company. |
| Abundance Venture Capital | | Focus: private equity and venture capital investments for International investors who need protection of capital and tax-free returns. |
| Advanced Technology Ventures | | Investment focus: startup, first-round and later-stage investments in electronics, communications, software and health care. |
| Advent International | | Investment focus: companies at all stages of development, including early-stage, and in virtually any industry. |
| Affiliated Managers Group | | Acquires majority interests in mid-sized investment management firms. Profiles the company, and affiliate products. Investor information. (NYSE: AMG) |
| Alliance Global Investments Inc. | | A private equity investment firm providing venture capital, investment banking, management consulting, and export development services. |
| Almeida Capital | | Focus: global venture capital research and advisory services. |
| Alpha Genesis Inc. | | Offering market analysis, due diligence, consulting and management services. Lists ventures, and presents the advisory board. |
| Ampal-American Israel Corporation | | Acquires interests in and/or invests in a broad variety of businesses located in the state of Israel or which are Israel-related. (Nasdaq: AMPL) |
| Ampersand Ventures | | Investment focus: early and expansion-stage companies in communications, information technologies, life sciences and specialty materials and chemicals. |
| Apax Partners | | Investment focus: start-ups to later-stage buyouts in a broad range of industries, most notably healthcare, information technology, telecommunications, specialty retailing and new media. |
| Arcturus | | Focus: acts as managing venturer and marketing in corporate joint ventures. |
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