(Reuters) - Amber, a vehicle of infrastructure fund I Squared Capital Advisors and TDR Capital, submitted the highest bid for Spain's Applus+, Spanish regulator CNMV said on Friday, valuing the industrial testing firm at 1.65 billion euros ($1.77 billion).
Buyout fund Apollo and Amber filed tender offers last summer, kicking off a bidding war.
Amber offered 12.78 euros per share, topping the 12.51 offered by Apollo's Manzana Bidco.
Applus shares were up 10.5% after it resumed trading after being suspended shortly before the bid values were revealed.
The company's board said this month that it favoured Amber's bid.
($1 = 0.9329 euros)
(Reporting by Joao Manuel Mauricio in Gdansk, Editing by Emma Pinedo)