Question: Where is the company The Thompson/Center Contender  based?

Context paragraphs:
The Contender (season 2): The Contender 2 is a reality television show based on the sport of boxing, but with an element of the (welterweight) competitor's lives and relationships with each other within the show's living quarters, based in Pasadena, California.  Filmed in January and February 2006, the show began airing on July 18, 2006.  The winner of "The Contender Season 2" was decided in a bout at the Staples Center, Los Angeles, broadcast live on September 26, 2006, winning a purse of US$500,000.  The Contender 2 was shown on ESPN in the USA, in the UK on ITV4, in Canada on TSN, in Australia on FOX8, on TV2 in New Zealand and on AXN in Asia.

Robert D. Richards: Robert D. Richards is a Canadian-born space entrepreneur.  He is co-founder and CEO of Moon Express, Inc., a U.S. company awarded a $10M commercial lunar contract by NASA and a competitor in the Google Lunar X PRIZE.  He is also the founder and former CEO of Odyssey Moon Limited, an Isle of Man based commercial lunar enterprise and the first official contender in the $30M Google Lunar X PRIZE competition.  From 2002-2009 he was the Director of the Space Division at Optech Incorporated.

Thompson/Center Contender: The Thompson/Center Contender is a break-action single-shot pistol or rifle that was introduced in 1967 by Thompson/Center Arms.  It can be chambered in calibers from .22 Long Rifle to .45-70 Government.

7-30 Waters: The 7-30 Waters cartridge was originally a wildcat cartridge developed by author Ken Waters in 1976 to give better performance to lever-action rifle shooters than the parent .30-30 Winchester cartridge, by providing a higher velocity and flatter trajectory with a smaller, lighter bullet.  By 1984, Winchester introduced a Model 94 rifle chambered for the 7-30 Waters, establishing it as a commercial cartridge.  In 1986, Thompson/Center began chambering 10-inch, 14-inch, and 20-inch Contender barrels for the cartridge.

Thompson Media Group: Thompson Media Group, LLC, originally established as Thompson Publishing Group, Inc. was founded in 1972 by Richard E. Thompson.  Thompson Media Group is an American privately held media company that specializes in providing compliance, regulatory, and market information through its four operating units: Thompson Information Services, The Performance Institute & American Strategic Management Institute, AHC & BioWorld, and Sheshunoff Information Services, A.S. Pratt, & Alex Information (collectively, SIS).  Thompson Media Group, LLC, is based in Washington, DC.  Thompson Media Group LLC established their name during reorganization in 2011.

Larry King (musician): Larry King is an American singer-songwriter, music producer, and band leader based in Chicago, Illinois.  In the late 1980s King was the founder and lead singer of the Los Angeles glam rock band Human Factor, and after moving back to Chicago, founded the Larry King Orchestra in 1997.  He founded MFO Entertainment Group a year later, and remains as president of the company.  In 1999 King and John Blasucci founded Soleil Moon, an adult contemporary band that has since had two studio releases, and involved session musicians such as the London Symphony Orchestra, Kenny Aronoff, Todd Sucherman of Styx, Michael Thompson, Leland Sklar, Vinnie Colaiuta In 2012 Larry collaborated with Michael Thompson and became the new lead singer for the Michael Thompson Band under the Frontiers Records Label based in Italy.  Frontiers also picked up the 'Soleil Moon – On The Way To Everything' record for international release in 2013.

Barfoot &amp; Thompson: Barfoot & Thompson is New Zealand's largest privately owned, non-franchised real estate company, based in Auckland, New Zealand.  The company is family owned and operated and is still run by the same Barfoot and Thompson families that started the business in the 1920s.  The current Directors are Peter Thompson (Managing Director), Garth Barfoot and Kiri Barfoot, and the Chief Executive Officer is Wendy Alexander.

Thompson/Center Arms: Thompson/Center Arms is an American firearms company based in Springfield, Massachusetts.  The company is best known for its line of interchangeable-barrel, single-shot pistols and rifles.  Thompson/Center also manufactures muzzle-loading rifles and is credited with creating the resurgence of their use in the 1970s.

Thompson Group Inc.: Thompson Group was the parent company to Thompson Cigar that was based in Tampa, Florida and encompassed Casual Living and Linen Source.  Thompson Group's headquarters was located at 5401 Hangar Court in Town and Country, Florida.

Thompson/Center Ugalde: The Thompson/Center Ugalde, or TCU family of wildcat cartridges, was developed by Wes Ugalde of Fallon, Nevada, by necking up .223 Remington brass to accept larger bullets.  The cartridges were developed for the Thompson Center Arms Contender single shot pistol, and are widely used in handgun metallic silhouette competition and handgun hunting.

Supporting paragraphs: Thompson/Center Contender Thompson/Center Arms
Answer: Springfield, Massachusetts