Ethan Choi

Invoca, Inc. provides call performance marketing solutions. Its products include call intelligence suite, integration partners and cloud infrastructure. The firm offers solutions to agencies, consumers, business-to-business, search and performance marketers. Invoca was founded by Colin D. Kelley and Jason S. Spievak in 2008 and is headquartered in Santa Barbara, CA.

Khosla Ventures LLC (Khosla Ventures) is a venture capital firm founded in 2004 by Vinod Khosla. The firm is headquartered in Menlo Park, California.

Accel Partners LLC is a venture capital firm founded in 1987 by Jim Swartz and Arthur Patterson. The firm is headquartered in California, the US.

Citigroup Asset Management is a registered investment advisor located in New York City with an additional office in Washington, DC. The firm is a subsidiary of Citigroup Financial Products, Inc. and their ultimate parent is Citigroup, Inc. (NYSE: C)

Spectrum Equity Management LP (Spectrum Equity) is an independent Private Equity firm founded in 1993 by Bill Peter Collatos and Brion Blackwell Applegate. The firm is headquartered in Boston, Massachusetts with an additional office in California.