Disadvantaged relative to bigger companies that negotiate their own airfare discounts, small businesses mostly pay retail. TravelBank co-founder and CEO Duke Chung is out to change that. In a market full of business travel startups, one of his company's angles is rebates for users.

TravelBank introduced its first products in November. They are an expense app and budgeting tool, offered for free. This month it added flight bookings. In an interview last week, Chung described the company as a "corporate online travel agency."

TravelBank has an ARC number. It . . .

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David Jonas in 2006 co-founded business media firm ProMedia.travel after ten years as a journalist with Business Travel News. David rejoined BTN in 2010 as executive editor when its parent company acquired ProMedia, and in 2014 co-created The Company Dime. David has a bachelor's degree in communications from Cornell University.