Personal Information

Full Name: Guillaume Pousaz

Nickname: Guillaume

Country/State: Switzerland

Date of Birth: 1981-08-01

Languages Known: French, English

Zodiac Sign: Leo

Food Habit: Not publicly

Religion: Not public

Hobbies: Not publicly disclosed

Education

School: Not Publicly Known

College: Not Publicly Known

Degrees Obtained: Not Public

Physical Stats

Height: 175 cm

Weight: 70 kg

Family Information

Parents: Not Publicly Known

Siblings: Not publicly disclosed

Marital Status: married

Wife: Not Public

Children: 3

Career

Current Position: Founder and Chief Executive Officer (CEO)

Skills:

Net Worth: Forbes 2025 estimate places him around US$7.8B

Awards & Achievements: Founded Checkout.com (rebranded from earlier payments work; Checkout.com identity established in 2012). Built the company largely without outside capital until 2019 (commonly highlighted in profiles).

Biography Details

Guillaume Pousaz is a Swiss entrepreneur and the founder and CEO of Checkout.com, a global payments company that helps online businesses accept and optimize digital payments across markets. He began coding young and later studied at EPFL and HEC Lausanne before choosing entrepreneurship over a traditional finance career. Over the years, he built payments capability across regions and eventually launched Checkout.com with a focus on better performance, reliability, and local market coverage for enterprise merchants. After operating as a bootstrapped business for years, Checkout.com raised major external rounds and scaled globally, expanding product depth across acquiring, payment methods, fraud, and performance tooling. Pousaz is known for staying relatively low profile while driving long-term platform strategy and selective growth investments through his family office and philanthropic efforts.

• January 23, 2025: Checkout.com announced a profitable end to 2024 and highlighted strong growth in its core business as it positioned for a return to profitability. 

•  

• May 2025: Bloomberg reported that Pousaz shifted his residence from the UK to Monaco. 

•  

• September 26, 2025: Checkout.com announced an internal valuation of $12B, an employee share buyback, and said it expects to process more than $300B in eCommerce payment volume in 2025 while tracking toward full-year profitability.

Social Media & External Links