WEX Inc. is a provider of payment processing and information management services to the United States commercial and government vehicle fleet industry.

The company is headquartered in Portland, Maine and provides services in the United States, Canada, South America, Europe, Asia, and Australia.

[7] In 2012, it adopted the name WEX, signaling a shift away from focusing on fuel cards and expanding into other payment solutions.

[8] In 2019, WEX opened a new 100,000-square-foot headquarters across from the Ocean Gateway International Marine Passenger Terminal in Portland, Maine.

[11] WEX Fleet also partners with GasBuddy,[12] OnDeck Capital,[13] and Chevron,[14] among other companies, to provide services to customers.

WEX Virtual launched in 2000[16] in support of customers including HitchHiker,[17] HotelTonight, Expedia, and Priceline.