Helo Commercial saunas are found in more US commercial saunas than any other brand:

From the first sauna ever designed and manufactured by Helo, we have been the leader in setting commercial sauna industry standards. The Helo commitment to client satisfaction, quality, professionalism and value has guided the way we've done business for decades. The following is a partial list of Helo clients:

YMCAs - Nationwide Xcel Energy Center - Minnesota Wild
YWCAs - Nationwide Target Field - Minnesota Twins
JCCs - Nationwide Target Center- Minnesota Timberwolves
Gold's Gyms - Nationwide Coors Field - Colorado Rockies
LA Fitness - Nationwide Pepsi Center - Denver Nuggets
Lifetime Fitness - Nationwide Core State Arena - Philadelphia 76ers/Flyers
Powerhouse Gyms - Nationwide Seattle Seahawks' Practice Facility
Dan Gable Museum and Training Center, Waterloo, IA Paul Brown Stadium - Cleveland Browns
Four Seasons Resorts - Nationwide American Airlines Arena - Miami Heat
Sandals Resorts - International Honda Center - Anaheim Mighty Ducks
Disney Resorts SAP Center - San Jose Sharks
Royal Pacific Resort - Universal Studios, Orlando, FL Nationwide Arena - Columbus Blue Jackets
GM World Headquarters, Detroit, MI Mariucci Arena - University of Minnesota
Hilton Hotels - Nationwide National Hockey Center - St. Cloud State University
Westin Hotels - Nationwide University of Michigan Hockey & Wrestling
Hampton Inn Hotels, Bronx, NY University of Tennessee Basketball Training Center
Embassy Suites - Nationwide University of Indiana Basketball
Marriott Hotels - Nationwide University of Kansas Football
Hyatt Hotels - Nationwide Little Caesar's Arena, Detroit Events & Entertainment Centers
Five Seasons Country Clubs - Nationwide Church of Scientology & Narcanon Facilities
Ritz Carlton Hotels - Nationwide Samsung Headquarters
New England Patriots - Gillette Stadium, Foxboro, MA Lodge Kohler - Green Bay, WI
Chicago Cubs Mercedes-Benz US International Inc
Pittsburgh Penguins US Military Bases - Nationwide & International
Chicago Blackhawks Tampa Bay Buccaneers
Detroit Red Wings Nashville Grizzlies
Detroit Pistons NY Jets Training Facility
Detroit Lions Miraval Resorts - Tucson, AZ
Minnesota Vikings Headquarters, Eagan, MN Houston Texans Stadium