According to the U.S. Census, by 2035 one in every five Americans will be of retirement age. So SeniorAdvice.com, an online senior housing and caregiver referral service, has compiled a list of the best 20 companies for seniors. It’s based on how companies support seniors by providing job opportunities, supplemental income during retirement, unique retirement benefits, special perks and discounts.

The senior-friendly companies and organizations include Rover, Kelly Services, Southwest Airlines, Lyft, Amazon Prime, Young Living Oils, Aerospace Corp., National Park Service, Kohl’s, Airbnb, T-Mobile, Regal Theaters, Etsy, All City Management Services (ACMS), Honeybaked Ham, Spectrum Cable Internet, Upwork, McDonald’s, H&R Block, and Orkin.

For example, Kelly Services offers temporary or transitional work plans for workers of retiring age; Aerospace Corporation older employees reduce worked hours over time; and the National Park Service offers full-time, part-time and seasonal ranger jobs