Nearly 100 leaders have signed a letter urging other Fortune 500 companies to join them in furthering disability equality

About 100 company leaders are pressing their colleagues to improve the workplace for people with disabilities and evaluate their inclusion of people with disabilities, Disability:IN announced Thursday.

The letter’s newest signatories of the “CEOs Are IN” campaign include the heads of Micron Technology, Tripadvisor and other tech and health care professionals. Accenture, Intel and Microsoft are among the first companies to back the letter when it was first released in 2019. These companies pledged to make disability inclusion a business priority by participating in an assessment of their disability inclusion and equality practices.

Disability:IN CEO Jill Houghton said focusing on diversity, equity and inclusion efforts will help create sustainable companies, especially in light of the Great Resignation. “By encouraging CEOs to make disability inclusion a business priority, these 101 signatories are joining IN to positively transform lives and create financial and social impact,” Houghton said in a release.

The signatories pledged to take part in the Disability Equality Index, which is administered by Disability:IN and the American Association of People with Disabilities. Participants of the assessment receive a score between 0 and 100, with scores over 80 indicating that they are the “Best Places to Work for Disability Inclusion,” according to the release. The DEI looks at criteria within six categories including culture and leadership, community engagement and supplier diversity. The organization added questions related to board diversity this year, and the findings from those questions will be released in July, according to Disability:IN’s Houghton.

Of the 319 companies that took the examination last year, 272 scored 80 or above, Houghton said. Adobe, Dell and Cisco were among dozens of companies to receive a score of 100 in 2021; Amazon and VMware were given scores of 90%; and Snap, Micron and Workday received scores of 80%. Registration for the Disability Equality Index is currently open, and results are released in July.