Big investment round into multi-modal travel search company GoEuro, with $70 million from Silver Lake Kraftwerk and Kleiner Perkins Caulfield & Byers.
The latest capital-raise comes less than a year after it secured $45 million in Series B financing in December last year from Goldman Sachs and a string of personal investors.
GoEuro has broken its own previous record in pulling in the highest amount ever to be given to a multi-modal travel search engine.
The Germany-based company's Series A came in 2013 ($27 million), bringing its total funding to date to a hefty $145 million.
It says:
"GoEuro is now poised to join the small circle of European startups seen to have the potential to become multi-billion dollar companies."
CEO Naren Shaam says GoEuro's objective is to "connect every single location on the map with a click of a button".
GoEuro says it has ten million users a month and facilitates the sale of tickets in over 100 countries.
Shaam says:
"This new investment from such experienced investors will allow us to scale into many new markets and go deeper into the ones we already have, as well as accelerate development of the world’s most comprehensive reservations platform for trains, buses and flights."
The headcount at GoEuro is currently 180 people.
Shaam estimates the sector worldwide is somewhere in the region of a $150 billion market, with a heavy emphasis on Europe with its well-developed high-speed rail networks.
As well as its unicorn ambitions (worth $1 billion), GoEuro claims its mission is to become the "world's largest travel booking service".
It is one of a number of similar brands that have emerged in recent years with a strategy to allow users to search for routes and tickets that include air, rail, ferry and ground transportation.
Silver Lake Kraftwerk's parent venture firm Silver Lake has previously supported Alibaba, Ctrip and Sabre.
Kleiner Perkins was an early investor in Google and Airbnb, as well as having backed Uber, Waze and Twitter.
Rod Cuthbert, CEO of rival service Rome2Rio, says:
"This is fabulous. We've been telling anyone who'll listen that multi-modal is the next big thing for a few years now, and this investment is going to add a lot of weight to that message.
"As for that valuation... well, it will certainly make shareholders in Rome2Rio feel pretty good about their investment. Good luck to Naren and his team, and thanks, as well!"