What We Represent

ACTAI Global is a group of extraordinary Athletes, Conservationists, Technologists, Artists and Innovators. Participants combine their energy, network and resources to help each other achieve professional success, pushing the limits of work and play while also fueling philanthropic activities around the world. The ACTAI Global community has an incredibly accomplished professional network who’s collective passion brings them together to positively change the world.


Less talk, more action. Collectively we combine our energy and resources to help each other achieve professional success.


Become part of an ethical tribe of professionals, helping to create, share and innovate collaboratively.


We love tech and embrace it whenever we can to support environmental causes related to the ocean and related ecosystems.


Work life balance is important to us and is an essential ingredient into our daily routine, lifestyle and culture.


Our mission is to support extreme innovators, entrepreneurs and athletes to influence and inspire a new world generation.


Bill Tai

VC, Kiteboarder

Bill Tai is a prolific investor, serving as the Founding Investor & Chairman of Treasure Data, Inc.; a Board Director of BitFury Group and also Voxer. He is a lead angel or seed investor in fun companies including Canva, Color Genomics, Shoes of Prey, Tango.me, Tweetdeck/Twitter, Wish.com and Zoom.us.

Bill established the Silicon Valley office for Charles River Ventures and is a Partner Emeritus. Previously he served as Partner at IVP, and was Founding CEO of iAsiaWorks (IPO 2000 via Goldman Sachs & Morgan Stanley), Founding Investor & Chairman of IPinfusion (Tokyo:4813) and past Board Director of 7 publicly listed companies. He holds a BSEE with Honors from the University of Illinois and an MBA from Harvard. He serves on the World Economic Forum’s Technology Pioneer Committee is an Adjunct Professor of Innovation at Curtin University in Perth Australia. He is the driving force behind Blockchain Summit, Extreme Tech Challenge and West Tech Fest.

Sabine Schindlbauer

COO ACTAI Global, COO Extreme Tech Challenge

Sabine has been working in the International Sports Marketing Department of Red Bull GmbH for 10 years; she was responsible for the company’s global Athlete and Event Management program as well as the strategic direction of Red Bull’s world wide sport marketing approach. She relocated from Austria to Maui in 2012 and is the personal assistant of the renown waterman Robby Naish.

Austin Stewart


Austin Stewart serves ACTAI Global as General Counsel, Corporate Secretary and as a member of its Board of Directors.

Austin has 25 years’ experience as a California attorney and maintains a solo law practice in addition to his work with ACTAI Global.

Otherwise, if the sport involves a board on your feet then he’s doing it and probably has too much old gear in the garage; surfing and kiteboarding
in particular have made a profound impact, and have fostered a lifelong passion to help protect our oceans.

Gokce Gizer

Creative & Event Production

GG is the founder of Onkaro Consulting & Design Agency in New York assisting startup founders, corporate teams and non-profit organizations in their business, communication and marketing strategies. Since moving from Istanbul in 2012 she has been actively involved in the organization of our community events as well as the Extreme Tech Challenge by coaching the startups in the competition and managing the creative aspects as well as the event production.

Maria Serafica-Stermer


Maria serves as a financial consultant to various companies.  She is currently the external CFO for Los Angeles-based real estate developer, Daniel Bernstein & Associates, and is responsible for financing all projects. Previously, she was the external CFO for Permacity, a leading solar company in California, and a partner at Hoffman, Stermer & Associates, a public accounting firm. Maria is a certified public accountant and has a B.A. degree in English Literature from UCLA, where she also studied Economics. She has worked with nonprofit organizations for over eighteen years, including starting her own from the ground up (LA-based ballet company called Aeolian Ballet Theatre), and has served on numerous boards.

Jill Meyer

Guest Services

Jill earned a BA in Communications followed by a Masters of Education from the University of Calgary, after which she moved to Cabarete, Dominican Republic to pursue a career as an educator. She has been a windsport addict her entire life, an avid kiteboarder for almost 15 years. For ACTAI Global, Jill is responsible for interviewing and researching new applicants.

Beep! Digital

Branding & Web Development

Beep is an agency collective of geeks, designers, kiters and innovators that deliver a suite of branding and digital solutions to tech companies around the world. Everyone from Startups to Enterprises benefit from their thought through creative work, including us, as they are responsible for our awesome branding and web work. Feel free to reach out to them.