Two Long Island companies earned perfect scores Monday for providing equal rights to employees of all sexual orientations, and two others received partial credit.

Broadridge Financial Solutions Inc. in Lake Success and Henry Schein Inc. in Melville both earned scores of 100 in the Human Rights Campaign Foundation’s 2017 Corporate Equality Index, which rates workplaces on equal treatment for lesbian, gay, bisexual and transgender employees. The Hain Celestial Group in Lake Success received a score of 90 out of 100. A fourth company, UBM PLC, a British business-to-business events organizer with operations in Manhasset, got a rating of 45.

Manhattan-based CA Technologies Inc., which was formerly based in Islandia and maintains about 10 percent of its workforce there, earned a score of 100.

At Henry Schein, Broadridge and CA Technologies, executives said inclusive policies helped further their business goals.

Stanley M. Bergman, board chairman and chief executive of Henry Schein, said in a statement that “an inclusive workplace environment built on ethics, open communication, and recognition of every . . . [employee’s] contributions offers everyone the greatest opportunity for success.”

Broadridge Financial Solutions Inc. in Lake Success also earned a perfect score. Photo Credit: Newsday / Alejandra Villa

At Broadridge, Julie Taylor, chief human resources officer, said the company’s practices allow it “to respond more effectively to the broad and diverse needs of our clients worldwide.”

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Beth Conway, vice president of human resources at CA Technologies, said in a statement that “diversity of perspective, experience and thought are imperative to driving better business outcomes.”

Hain and UBM did not immediately respond to requests for comment Monday.

The Washington, D.C.-based foundation is the nonprofit arm of the Human Rights Campaign, a civil rights organization. It gave official ratings to 887 companies across the nation, and gave perfect scores to 517 of them. In New York, the foundation officially rated 161 workplaces, with 102 earning perfect scores. The average rating in New York was 89. Nationwide, the average score was 78.5.

The foundation invited all companies listed in Fortune magazine’s list of the 1,000 largest publicly traded companies, as well as the nation’s 200 biggest law firms and other major employers, to participate in the survey. Scores ranged from 0 to 100.

Chad Griffin, president of the Human Rights Campaign, said in a statement that the “unprecedented expansion of inclusive workplaces across the country and around the globe not only reflects our progress, it helps drive it.”