2015 Winners

Class I (900+ members)

• Diamond: San Francisco Regional Mensa
• Emerald: North Texas Mensa, Chicago Area Mensa, San Diego Mensa, Metropolitan Washington Mensa, Boston Mensa, Mensa of Western Washington, Southeast Michigan Mensa, Gulf Coast Mensa, Oregon Mensa, Delaware Valley Mensa, Minnesota Mensa, Mensa In Georgia, Greater Los Angeles Area Mensa, Greater Phoenix Mensa, Greater New York Mensa

Class II (400 to 899 members)

• Diamond: Mensa of Wisconsin, Lonestar Mensa
• Sapphire: Mensa of Wisconsin, Lonestar Mensa, Columbus Area Mensa, Denver Mensa, Central Indiana Mensa, Orange County Mensa, Cincinnati Area Mensa
• Emerald: South Texas Mensa, Orange County Mensa, Central New Jersey Mensa, Mensa 76, Charlotte-Blue Ridge Mensa, Western Pennsylvania Mensa, Mid-America Mensa, Tampa Bay Mensa, Maryland Mensa, Connecticut/Western Massachusetts, Broward Mensa, Sacramento Regional Mensa, Central Pennsylvania Mensa, Cleveland Area Mensa, Mensa of Eastern North Carolina, St. Louis Area Mensa, Palm Becah County Mensa, Central Florida Mensa, Northern New Jersey Mensa, Richmond Area Mensa

Class III (200 to 399 members)

• Diamond: Northern Nevada Mensa
• Ruby: Northern Nevada Mensa
• Sapphire: Dayton Area Mensa, East Central Ohio Mensa, Nebraska-Western Iowa Mensa, New Hampshire Mensa, Mensa of Jacksonville, Memphis Mensa, Piedmont Area Mensa, Tucson Mensa
• Emerald: Channel Islands Mensa, Space Coast Area Mensa, Kentuckiana Mensa, Mensa Hawaii, Northwest Florida Mensa, Southern Nevada Mensa, Manasota Mensa, Tidewater Mensa, North Alabama Mensa, Plains and Peaks Mensa, Central Iowa Mensa, Eastern Oklahoma Mensa, Central Alabama Mensa, Mensa of Northeaster New York, Rhode Island Mensa, Southern Connecticut Mensa, Western New York Mensa, Redwood Empire Mensa, New Orleans Mensa, Thomas Jefferson Mensa, Middle Tennessee Mensa, Lehigh Pocono Mensa, Utah Mensa, Central Oklahoma Mensa, Central New York Mensa, New Mexico Mensa, North Florida Mensa, Southeast by South Florida Mensa, Miami Mensa

Class IV (100 to 199 members)

• Diamond: Monterey County Mensa
• Ruby: Monterey County Mensa
• Sapphire: Central South Carolina Mensa
• Emerald: French Broad Mensa, Blue Grass Mensa, Permian Basin Mensa, Sunflower Mensa, Mid-Michigan Mensa, Iowa-Illinois Mensa, Delaware Mensa, Boulder/Front Range Mensa, Vermont Mensa, Mensa of the Southern Tier of NY, High Mountain Mensa, Vandalia Mensa, Maine Mensa, Triad Mensa, Heart of Illinois Mensa, Coastal Carolina Mensa, Savannah Area Mensa of Georgia, Southern Idaho Mensa, Mid-Hudson Mensa, Missouri Ozarks Mensa, Rochester Area Mensa, Paso del Norte Mensa, Baton Rouge Mensa, East Texas Mensa, Mississippi Mensa, Chattanooga Mensa, Maumee Valley Mensa, Arkansas Mensa

Class V (fewer than 100 members)

• Diamond: Fort Wayne Mensa
• Ruby: Fort Wayne Mensa, Boarderline Mensa, Sangamon Valley Mensa
• Sapphire: North Dakota Mensa, South Coast Mensa
• Emerald: Tallahassee Mensa, Northern Michigan Mensa, Columbia River Mensa, South Mississippi Mensa, South Dakota Mensa, Montgomery/Wiregrass Mensa, Lubbock Mensa