Question: Which company has employed both Jeff Bonforte and Marissa Mayer?

Context paragraphs:
Ashfaq Munshi: Ashfaq Munshi is an entrepreneur and technology executive.  In 2012, Ashfaq served as the CTO of Yahoo!  before Marissa Mayer took over as CEO.  Before that he was the Interim Chief Executive Officer and President of MSC Software in 2009.  Ashfaq was an advisor to Kontagent, Inc. (now Upsight, Inc.) and has served as an advisor to a variety of startups.  He was also on the Dean's Leadership Council for the Division of Engineering and Applied Sciences at Harvard University.

The Gavin Newsom Show: The Gavin Newsom Show was a weekly one-hour talk show hosted by the Lieutenant Governor of California, Gavin Newsom, and airing on San Francisco-based Current TV.  The show featured one-on-one interviews with notable residents of California, past guests including Marissa Mayer and Sergey Brin.

Young Global Leaders: The Young Global Leaders, or Forum of Young Global Leaders, is an independent non-profit organization managed from Geneva, Switzerland, under the supervision of the Swiss government.  Launched by Klaus Schwab of the World Economic Forum in 2004, the Young Global Leaders are governed by a board of twelve world and industry leaders, ranging from Queen Rania of Jordan to Marissa Mayer of Yahoo! and Wikipedia co-founder Jimmy Wales.  Schwab created the group with $1 million won from the Dan David Prize, and the inaugural 2005 class comprised 237 young leaders.  Young Global Leaders participate in the Annual Meeting of the New Champions, established in 2007 and known informally as "Summer Davos", alongside Global Growth Companies and other delegations to the World Economic Forum.

Marissa Mayer: Marissa "Ann" Mayer ( ; born May 30, 1975) is an American information technology executive, formerly serving as the president and CEO of Yahoo!, a position she had held starting July 2012.  In January 2017, it was announced that she will step down from the company's board upon the sale of Yahoo!'s operating business to Verizon Communications.  She announced that resignation on June 13, 2017.  She is a graduate of Stanford and was a long-time executive, usability leader, and key spokesperson for Google.

Wienermobile: "Wienermobile" is a series of automobiles shaped like a hot dog on a bun which are used to promote and advertise Oscar Mayer products in the United States.  The first version was created in 1936 by Oscar Mayer's nephew, Carl G. Mayer, and variants are still used by the Oscar Mayer company today.  Drivers of the Wienermobiles are known as "Hotdoggers" and often hand out toy whistles shaped as replicas of the Wienermobile, known as "Wienerwhistles".

Peter Mayer: Peter M. Mayer (born 1936) is an American independent publisher who is president of The Overlook Press/Peter Mayer Publishers, Inc., a Woodstock, New York-based publishing company he founded with his father in 1971.  At the time of Overlook’s founding, Mayer was head of Avon Books, a large New York-based paperback publisher.  From 1978 to 1996, Mayer was CEO of Penguin Books, where he introduced a flexible style in editorial, marketing, and production.  Previously, while at Avon Books, he successfully launched the trade paperback as a viable alternative to mass market and hardcover formats.  Recently, Mayer financially revived both Ardis, a publisher of Russian literature in English, and Duckworth, an independent publishing house in the U.K.

Robby Stein: Robby Stein is director of product at Yahoo.  Previously he used to work for Google and was co-founder and CEO of Stamped, Marissa Mayer's first acquisition as CEO of Yahoo.

Jeff Bonforte: Jeff Bonforte is a Senior Vice President of Communications Products at Yahoo!, responsible for Yahoo! Mail, Yahoo! Messenger, Yahoo! Groups, Yahoo! Contacts and Yahoo! Calendar.  Before that he was Chief executive officer (CEO) of Xobni, a company that Yahoo! bought in July 2013.

Yahoo!: Yahoo! is a web services provider, wholly owned by Verizon Communications through Oath Inc. and headquartered in Sunnyvale, California.  The original Yahoo! company was founded by Jerry Yang and David Filo in January 1994 and was incorporated on March 2, 1995.  Yahoo was one of the pioneers of the early Internet era in the 1990s.  Marissa Mayer, a former Google executive, served as CEO and President of Yahoo until June 2017.

Oscar G. Mayer Jr.: Oscar Gustave Mayer (March 16, 1914 in Chicago, Illinois – July 6, 2009 in Fitchburg, Wisconsin) was an American business executive who served as chairman of the Oscar Mayer meat and cold cut production company headquartered in Madison, Wisconsin, the third Oscar Mayer to lead the family business, following his grandfather, company founder, Oscar F. Mayer, who died in 1955, and his father, Oscar G. Mayer Sr., who died in 1965.

Supporting paragraphs: Jeff Bonforte Yahoo!
Answer: Yahoo!