[7][8] Sacca held several positions at Google Inc.,[5] where he led the alternative access and wireless divisions[9] and worked on mergers and acquisitions.

[12] Sacca's parents exposed him to a variety of interests, and he recalls being pulled out of school to attend science museums and book-readings.

[15] He was a member of The Tax Lawyer law review and was honored as the school's Philip A. Ryan and Ralph J. Gilbert Memorial Scholar.

[17] In 2000[5][17] Sacca began his career as an associate at Fenwick & West in Silicon Valley where he handled venture capital, mergers, acquisitions, and licensing transactions for technology clients including Macromedia, VeriSign, and Kleiner Perkins.

[5][21] As part of the legal and business development team,[6] his first mandate was to find large amounts of data space, by negotiating and signing agreements around the world.

Among his projects were the 700 MHz and TV white spaces spectrum initiatives,[9][19] Google's data center in Oregon, and the free citywide WiFi network in Mountain View, California.

[6][16] Entrepreneur Evan Williams had started a microblogging service called Twttr in 2006, and asked Sacca if he wanted to invest.

[24] Sacca left Google in December 2007 after he had fully vested and sought additional opportunities to work with early-stage companies.

[6] Sacca has stated that a turning point in his angel investing was in 2007, when he moved to the town of Truckee in the mountains close to Lake Tahoe.

[26] Without the corporate backup funding available to many venture capitalists, Sacca became very involved in his portfolio companies on a personal level.

By February 2011 Sacca's funds had purchased about $400 million worth of Twitter shares, giving it "a stake of roughly 9 percent.

[29] Sacca had a 4% stake in Uber by March 2015, and Lowercase was "sitting on" investments in Stripe, Lookout and WordPress parent Automattic.

[10][30] Subsequently, appearing in three other season 7 episodes,[10] Sacca invested in HatchBaby, Bee Free Honee, Rent Like a Champion, and Brightwheel.

"[19] According to Forbes, he "bought his first [cowboy shirt], impulsively, at the Reno airport en route to a speech, and the reaction prompted him to buy out half the store on his return.

"[43] Sacca completed an Ironman in 2008,[44] and in 2009 rode his bicycle from Santa Barbara, California to Charleston, South Carolina over 40 days for charity.

[22] In 2017 the New York Times reported that a woman had accused Sacca of touching her face at a Las Vegas gathering in 2009 without consent, making her uncomfortable.

[45] Sacca denied the allegation,[46][47] but did apologize for contributing to a business atmosphere that was "inhospitable" for women in technology and venture capital.

[51] Sacca has served as an Associate Fellow of the Saïd Business School at Oxford University and as an MIT Enterprise Forum Global Trustee.

[19] During the 2016 U.S. presidential election, Sacca was a vocal supporter of Democratic Nominee Hillary Clinton,[54] appearing in various fundraisers around the country.

[56] Sacca donated to the Lincoln Project, a Republican-led super PAC opposing the re-election of Donald Trump and Republican Senators who supported him.