Mark Rober Speaking Fee: $200,000 to $300,000

Mark Rober has amassed over 8 billion views by creating incredible science-focused builds and pranks on his successful YouTube channel, with 65 million subscribers and counting. In the summer of 2022, Rober announced his secret project, called CrunchLabs, a massive Willy Wonka-style factory of creativity in the San Francisco Bay Area, where the team creates each original, buildable engineering toys and the super fun (and science-packed) videos from scratch with an express focus on getting as many brains as possible excited about science and engineering. Since its founding, CrunchLabs has offered a monthly subscription for kids that delivers original STEM toys and exclusive videos that entertain and teach STEM principles. Kids can’t get enough - the first run of Build Box sold out in under a week. Build Box's success paved the way for Hack Pack, the second product from CrunchLabs that demystifies coding and robotics for teens and adults with robot-in-a-box builds. Today, there are hundreds of thousands of subscribers and millions of boxes shipped. Plus, there are a few lucky subscribers each month who win an expenses-paid trip to hang out with Mark at his secret lab and more. Rober is also known for his YouTube videos, including glitter bombing porch pirates and phone scammers, making mazes for squirrels in his backyard, the world's largest and smallest Nerf gun, and more. In 2020, he hosted a Livestream with Jimmy Kimmel called Color the Spectrum, which raised over $3M to support Autistic Adults in their communities. In 2019 Rober co-founded #TeamTrees alongside fellow YouTube creator MrBeast, which raised $20 million to plant 20 million trees. In late 2021, they followed up with #TeamSeas, which raised $30 million to clean up 30 million pounds of trash and plastic from rivers, beaches, and oceans.