Holzman and his team persuaded 70 celebrities and luxury brands into donating meet-and-greets, VIP tickets, vacations and other gifts for the company's first auction.

[7] Holzman ran Charitybuzz part-time until the fall of 2007, when he committed to operating the business full-time and moved the company out of his home and into an office space.

[21] As of 2022, Charitybuzz reports to have raised funds for 4,500 beneficiaries, and hosted campaigns involving SpaceX, Ford, Reebok, IWC, Corona, Warner Bros Discovery, and Mattel/Barbie, along with nonprofits such as St. Jude Children's Research Hospital, Code.org.

[22] By auctioning luxury items and celebrity-backed experiences through the internet to bidders and shoppers worldwide, Charitybuzz is able to raise funds for foundations and nonprofits.

[24] In 2011, the following auctions took place: spend a day shadowing former President Bill Clinton;[25] meet-and-greet with Oprah Winfrey before the last taping of her talk show;[25] attend both the Elton John AIDS Foundation Dinner and the Vanity Fair Oscar Party;(2011)[26] idea pitch to Rupert Murdoch;[25] a private singing with Paul Simon;[25] front-row VIP seats to a Paul McCartney concert at Yankee Stadium;[25] behind-the-scenes tour of Facebook's headquarters with Company Director Blake Ross;[25] meet German designer Karl Lagerfeld at the Chanel Couture fashion show in Paris;[25] join Harrison Ford as his co-pilot during a flight over California;[25] walk-on role on AMC's Mad Men;[25] sit in on The Howard Stern Show at Sirius Radio and meet the host;[25] Lady Gaga's signed Steinway Piano, used during her performance for the Robin Hood Foundation gala;[27] courtside seats with Jay-Z at a Nets vs. Knicks game;[27] meet Taylor Swift backstage at a concert.

[27] In 2012, the following auctions occurred: spend a day with President Bill Clinton in New York City;[28] meet-and-greet with Bono after backstage show of U2;[28] meet-and-greet with Taylor Swift in Ottawa with two VIP concert tickets and round trip airfare;[28] sit ringside with Mike Tyson at the Pacquiao vs. Marquez fight;[28] lunch with George Clooney and Dace Karger;[28] lunch with Michael R. Bloomberg;[29] lifetime membership to all Current and future Trump National Golf Courses;[30] meet Jeremy Lin after watching the Knicks at Madison Square Garden from VIP seats and take home his game-worn jersey;[31] private one-hour tennis lesson with Andre Agassi and Stefanie Graf.

CEO Marissa Mayer at Yahoo!´s headquarters;[34] cameo role in the Superman vs. Batman film with Ben Affleck, Henry Cavill and Amy Adams;[34] lunch date with Julia Robert at the Soho House West Hollywood;[34] sit in on The Howard Stern Show;[34] meet-and-greet with Katy Perry.

[34] In 2014, the following auctions occurred: coffee date with Steve Perry in Los Angeles;[35] meet-and-greet with Justin Timberlake,[35] backstage meet-and-greet with Paul McCartney at a US concert;[35] lunch date with Apple's CVP of Software and Services Eddy Cue at Apple Headquarters;[35] meet-and-greet with Jim Carrey at the Dumb and Dumber To premiere;[35] visit the Fast Money set and meet Melissa Lee;[35] signed guitar used by Dave Matthews in 1991 – 1992;[35] lunch date with Ben Bernanke, the former chairman of the Federal Reserve to benefit the Robert F. Kennedy Center for Justice and Human Rights.

The same year, a lunch with Apple CEO Tim Cook was auctioned to benefit the Robert F. Kennedy Center for Justice and Human Rights.

[38] A caddy for Rickie Fowler at the Farmer's Insurance Open Pro-Am in La Jolla, CA was also auctioned to benefit Communities in School and DonorsChoose.