Hotel Engine
“Can a B2B hotel-booking platform become the financial OS for corporate travel spend?”
Founded2018
HQDenver, Colorado, USA
Total raised$221M
Latest roundSeries C, 2024
Valuation$2.1B
IndustryVertical SaaS / Business Travel
The story
Founded as Hotel Engine in 2018 after spinning out from Travelers Haven, focused on B2B corporate hotel booking. Rebranded to Engine in October 2024 to reposition as an all-in-one travel platform adding flights and car rentals. In 2026 launched Engine X — a business card program powered by Stripe Issuing and Fifth Third Bank — moving from pure travel software into embedded finance / spend management. Acquisition of Options Travel signals a push into enterprise online booking tools.
Product timeline
2018
Hotel Engine spins out of Travelers Haven as its own company· pivot
2019
Series A funding to scale hiring· funding
2021
Series B at $1.3B valuation· funding
2023
Launches FlexPro, Groups, and Partner Hub· product
2024
Rebrands from Hotel Engine to Engine; adds flights and car rentals· pivot
2024
Series C at $2.1B valuation led by Permira· funding
2026
Launches Engine X business card program with Fifth Third Bank and Stripe· card
2026
Acquires Options Travel to build Engine OBT (online booking tool)· acquisition
Acquisitions
The stack
5 layers disclosed in Hotel Engine’s embedded-finance stack
Card issuing
in the full report
Lending
in the full report
Open banking
in the full report
Sponsor bank
in the full report
Accounting gap: minor
5 more providers across 4 layers, with confidence-scored evidence and source URLs, are in the Embedded Finance Index report.