Proterra Inc. said it raised $23 million of Series B financing in a round led by Hennessey Capital and joined by existing investors Kleiner Perkins Caufield & Byers, GM Ventures, Mitsui & Co. Global Investment, Inc., 88 Green Ventures and Vision Ridge Partners. Rajiv Ghatalia, founder of Hennessey Capital, will join the board of the electric bus maker as an advisor.

Minneapolis-based chemicals company BioAmber Inc. has raised $30 million in Series C financing, the company announced Wednesday. Investors include Naxos Capital, Sofinnova Partners, Mitsui & Co. Ltd., the Cliffton Group and specialty chemicals company LANXESS. PRESS RELEASE BioAmber Inc. has completed its Series C round of financing with net proceeds of $30 million . The [...]

Energy storage company Prudent Energy has raised $29.5 million in new funding led by Mitsui. Vangoo Investment Partners, Idinvest Partners and Asia Clean Energy Limited also participated, as did existing investors Draper Fisher Jurvetson, DT Capital Partners, Northern Light Venture Capital and CEL Partners.

Proterra Inc. said on Monday it raised $30 million to accelerate the commercialization of its fast-charge electric transit buses and battery charging system. The investment is led by Kleiner Perkins Caufield & Byers and joined by GM Ventures, Mitsui & Co., Ltd., Vision Ridge Partners and 88 Green Ventures, LLC. PRESS RELEASE Proterra Paves Way [...]

Boingo Wireless Inc.’s initial public offering of 5.77 million shares was priced at $13.50 each. Shares of the provider of commercial mobile Wi-Fi Internet solutions will change hands on the NASDAQ Global Market under the symbol “WIFI” starting Wednesday. Boingo is offering about 3.85 million of the shares and selling stockholders are offering about 1.92 million. Credit Suisse and Deutsche Bank Securities are acting as joint book-running managers. Los Angeles, Calif.-based Boingo is backed by Evercore Partners, Mitsui & Co. and New Enterprise Associates Inc.