Autonomous Transportation-as-a-Service (TaaS) provider May Mobility has announced that it has closed a $50 million Series B round.

Toyota Motor Corporation led the Series B round, and the automotive manufacturer has also selected May Mobility as one of its partners in the autonomous TaaS segment for future open mobility platforms.

To date, May Mobility has raised a total of $84 million. This latest funding round will be used for strategic hires across the engineering and operations functions, as well as to expand the company’s vehicle fleet to meet growing demand.

“We are extremely excited to partner with Toyota and our other investors in this next phase of growth for our company,” says Edwin Olson, president and chief executive officer of May Mobility.

“This round will help us accelerate our path to executing our vision, leveraging our best-in-class software stack and continuing to tap into the $28 billion U.S. first and last mile transportation market.”

May Mobility’s current focus is the US first-mile-last-mile transportation market, specifically in urban areas. The service routes are in high-density areas, and help riders, as well as cities, solve issues related to gridlock, wait times, accessibility and availability.

Thus far, May Mobility’s current fleet of vehicles has provided more than 170,000 revenue-generating rides. Its enterprise service works with both public and private customers in Detroit and Grand Rapids, Michigan, as well as in Providence, Rhode Island.

“May Mobility already has a track record of commercializing autonomous driving shuttles in the U.S., and we see this as an exciting opportunity to collaborate with a seasoned partner in this area,” says Keiji Yamamoto, Toyota operating officer and president of Toyota's in-house Connected Company.

“By working together, we hope to accelerate our efforts at Toyota aimed towards realizing 'Mobility for All'.”