MassChallenge is adding three new sponsors to its annual startup competition — raising the stakes for fledgling companies by $100,000 to $1.1 million — including a group that is looking to expand the competition’s focus to include New York.

The Perkins School for the Blind will offer an additional $25,000 of grants via the Perkins Assistive Technology Prize to encourage participants in MassChallenge to develop new devices that could make a significant impact on the quality of life for people with disabilities.

“Joining with MassChallenge is a natural for us,” Perkins President Steven Rothstein said in a statement. “It’s in everyone’s interest to urge entrepreneurs to consider accessibility because better access for people with disabilities means better access for all.”

MassChallenge is the largest-ever start-up accelerator and competition, and the first to support high-impact, early-stage entrepreneurs with no strings attached to this year’s total of $1.1 million in cash awards.