If ever there were two model ambassadors for Best Friends, it would have to be Mark Stefanowski and his wife Kristin Bresnan.

For the last several years, Stefanowski and Bresnan have been vigorously active in supporting the mission of Best Friends through Bikers for Best Friends, a community of motorcycle enthusiasts committed to raising money for, and awareness of, the organization in the biker community.

The couple went above and beyond in their support recently by purchasing 50 memberships—one for a Harley Davidson dealership in each state.

The Boulder, Colo. couple did the incredibly generous deed by participating in the Give the Gift campaign, whereby members and supporters purchase Best Friends memberships for friends, family, or—in Stefanowski’s case—a favorite franchise. The goal of the program, part of Best Friends 25th anniversary celebration, is to double membership by the end of the year.

“We were sitting around thinking, ‘we haven’t given any money to Best Friends in a while,’” Stefanowski says when asked what compelled him and his wife to give so many memberships.

They had decided they wanted to do more than just donate. They also wanted to help boost membership and expose Best Friends to a larger audience.

“The Give the Gift program gave us the opportunity to spread the word about Best Friends, and that’s what this year is all about,” says Stefanowski in reference to Best Friends 25th anniversary.

Owner of a mobile dog-grooming company, Bresnan made her first trip to Best Friends three years ago, just in time to volunteer with a group of dogs Best Friends rescued from Lebanon. She ended up adopting one of the dogs, named Louise. Since then she and her husband, a computer sales rep, have become regular volunteers at the sanctuary and have spearheaded their own fundraising campaigns for the organization.

Six months ago they raised $1,500 for Best Friends with Riders Pledging Miles (R.P.M.). Piloted by Stefanowski and Bresnan, R.P.M. brings motorcycle enthusiasts together in donating a certain amount to Best Friends for each mile ridden over the course of a trip, a weekend, or a season. The couple racked up 9,000 miles themselves in making their own pledge.

So what motivates such avid support?

“It doesn’t matter if you’ve given a dollar or just a minute of your time, everyone at Best Friends makes you feel part of the family,” Stefanowski says. “We really feel appreciated, and we love the organization. That’s what motivates us.”

Stefanowski and Bresnan are also big supporters of their local Longmont, Colorado Humane Society. Each winter Stefanowski joins other supporters in taking a winter plunge in a nearby lake, an event that raises money for the shelter.