The response to Steve Mulder and partner Jean-Louis Marechal’s Zoom Room dog training facility on Rockville Pike has been among the best the company has ever seen, Mulder said today.

Dog agility classes are filling up and the two have received more RSVPs for the grand opening (set for Saturday at 3 p.m.) than any other Zoom Room location in the country. Based on the crowd at today’s ribbon cutting ceremony, it’s easy to see why.

A number of attendees at today’s ribbon cutting, including County Councilman Roger Berliner (D-Bethesda-Potomac) and Greater Bethesda Chevy Chase Chamber of Commerce members, brought their furry, four-legged friends to the new business at 11771 Rockville Pike, near the White Flint Metro station.

The floor on the 1,700-square-foot main gym space isn’t finished, but after about six weeks of construction and preparation, the facility that will offer obedience training, dog parties and a place for dog owners to socialize is almost ready to debut.

The grand opening on Saturday will serve as a fundraiser for Lucky Dog Animal Rescue and Zoom Room will donate $10 for every advance RSVP received, plus 10 percent of the day’s retail and class sign-up sales.