Downtime is nice, but are we getting enough done on trips? In its quest to maximize business travel productivity, one Germany-based startup is pulling from themes in pre-trip approval, return on travel investment and the pandemic- and sustainability-driven emphasis on fewer but longer excursions.

Called Tagtu and founded in 2021 by business travelers from outside the industry, the bootstrapped company is in a soft launch with a flock of friendly firms. 

It’s an address book-based planning tool. Who . . .