Unofficial conventions

With Transformers being such a popular brand with a well-spread-out fan base, numerous unofficial conventions have sprung up over the years, often featuring many guests who worked on official Transformers projects.

Due to the COVID-19 pandemic, many of these conventions in 2020 and 2021 were cancelled or presented online instead of in-person.

Active Conventions

• BotCon (There have been unofficial BotCons.)
  • BotCon 2004: June 19th and 20th — Pasadena, California, USA
  • BotCon 2022: August 25-28 — Nashville, Tennessee, USA
  • BotCon 2023: August 24-27 — East Rutherford, New Jersey, USA
  • BotCon 2024: June 27-30 — Fort Wayne, Indiana, USA
  • BotCon 2025: June 12-15 — Fort Wayne, Indiana, USA

• Cybfest NW
  • Cybfest NW 2014: August 16th — Kent Commons Community Center, Kent, Washington
  • Cybfest NW 2015: August 22nd — Kent Commons Community Center, Kent, Washington
  • Cybfest NW 2016: August 20th — Kent Commons Community Center, Kent, Washington
  • Cybfest NW 2017: August 19th — Kent Commons Community Center, Kent, Washington
  • Cybfest NW 2018: August 18th — Kent Commons Community Center, Kent, Washington
  • Cybfest NW 2019: July 27th — Kent Commons Community Center, Kent, Washington
  • Cybfest NW 2020: August 1st — Kent Commons Community Center, Kent, Washington — Canceled due to COVID-19 pandemic.
  • Cybfest NW 2021: September 11th — Kent Commons Community Center, Kent, Washington
  • Cybfest NW 2022: July 23rd — Kent Commons Community Center, Kent, Washington
  • Cybfest NW 2023: July 8th — Kent Commons Community Center, Kent, Washington
  • Cybfest NW 2024: August 3rd — Kent Commons Community Center, Kent, Washington

• Dairycon
  • Dairycon 1.0 2001: November 24th — Fond du Lac, Wisconsin, USA
  • Dairycon 2.0 2002: September 14th — Fond du Lac, Wisconsin, USA
  • Dairycon 3.0 2003: October 18th — Fond du Lac, Wisconsin, USA
  • Dairycon 4.0 2004: April 10th — Fond du Lac, Wisconsin, USA
  • Dairycon 2005: April 9th — Fond du Lac, Wisconsin, USA
  • Dairycon 2006: April 8th — Fond du Lac, Wisconsin, USA
  • Dairycon 2007: April 14th — Fond du Lac, Wisconsin, USA
  • Dairycon 2008: March 29th — Fond du Lac, Wisconsin, USA
  • Dairycon 2009: April 24th and 25th — Fond du Lac, Wisconsin, USA
  • Dairycon 2010: April 9th and 10th — Fond du Lac, Wisconsin, USA
  • Dairycon 2011: April 15th and 16th — Fond du Lac, Wisconsin, USA
  • Dairycon 2012: April 27th and 28th — Fond du Lac, Wisconsin, USA
  • Dairycon 2013: April 5th and 6th — Fond du Lac, Wisconsin, USA
  • Dairycon 2014: April 25th and 26th — Fond du Lac, Wisconsin, USA
  • Dairycon 2015: March 27th and 28th — Fond du Lac, Wisconsin, USA
  • Dairycon 2016: April 1st and 2nd — Fond du Lac, Wisconsin, USA
  • Dairycon 2017: April 1st — Fond du Lac, Wisconsin, USA
  • Dairycon 2018: April 6th and 7th — Fond du Lac, Wisconsin, USA
  • Dairycon 2019: April 5th and 6th — Fond du Lac, Wisconsin, USA
  • Dairycon 2020: September 18th and 19th — Fond du Lac, Wisconsin, USA
  • Dairycon 2021: April 9th and 10th — Fond du Lac, Wisconsin, USA
  • Dairycon 2022: April 8th and 9th — Fond du Lac, Wisconsin, USA
  • Dairycon 2023: April 14th and 15th — Fond du Lac, Wisconsin, USA
  • Dairycon 2024: April 12th and 13th — Fond du Lac, Wisconsin, USA

• RetCon
  • RetCon 2017: April 29th — Helsingborg, Sweden
  • RetCon 2018: June 2nd — Helsingborg, Sweden
  • RetCon 2019: September 28th — Borås, Sweden
  • RetCon 2020: September 26th — Helsingborg, Sweden — Canceled due to COVID-19 pandemic.
  • RetCon 2022: April 30th — Helsingborg, Sweden
  • RetCon 2023: September 30th — Lund, Sweden
  • RetCon 2024: September 28th — Lund, Sweden

• TFcon
  • TransformersCon 2002: November 10th — Hamilton, Ontario, Canada
  • TransformersCon 2003: June 22nd — Burlington, Ontario, Canada
  • TransformersCon 2004: March 12th and 13th — Toronto, Ontario, Canada
  • TransformersCon 2005: March 25th and 26th — Toronto, Ontario, Canada
  • TransformersCon 2006: April 28th and 29th — Toronto, Ontario, Canada
  • TransformersCon 2007: April 27th and 28th — Toronto, Ontario, Canada
  • TFcon 2008: June 20th and 21st — Toronto, Ontario, Canada
  • TFcon 2009: April 25th and 26th — Toronto, Ontario, Canada
  • TFcon 2010: July 17th and 18th — Toronto, Ontario, Canada
  • TFcon 2011: July 30th and 31st — Mississauga, Ontario, Canada
  • TFcon 2012: July 27th and 29th — Mississauga, Ontario, Canada
  • TFcon 2013: July 26th to 28th — Mississauga, Ontario, Canada
  • TFcon 2014: July 11th to 13th — Mississauga, Ontario, Canada
  • TFcon 2015: July 17th to 19th — Mississauga, Ontario, Canada
  • TFcon 2016: July 15th to 17th — Mississauga, Ontario, Canada
  • TFcon 2017: July 14th to 16th — Mississauga, Ontario, Canada
  • TFcon 2018: July 13th to 15th — Mississauga, Ontario, Canada
  • TFcon 2019: July 12th to 14th — Mississauga, Ontario, Canada
  • TFcon 2020: September 4th to 6th — Mississauga, Ontario, Canada — Canceled due to COVID-19 pandemic.
  • TFcon 2021: December 10th to 12th — Mississauga, Ontario, Canada
  • TFcon Toronto 2022: July 8th to 10th — Mississauga, Ontario, Canada
  • TFcon Toronto 2023: July 14th to 16th — Mississauga, Ontario, Canada
  • TFcon Toronto 2024: July 12th to 14th — Mississauga, Ontario, Canada

• TFcon USA
  • TFcon USA 2014: October 24th to 26th — Hyatt Regency O'Hare, Chicago, Illinois, USA
  • TFcon USA 2015: October 16th to 18th — Embassy Suites Charlotte Concord, Charlotte, North Carolina, USA
  • TFcon USA 2016: October 21st to 23rd — Hyatt Regency O'Hare, Chicago, Illinois, USA
  • TFcon USA 2017: September 29th to October 1st — Hyatt Regency Reston, Reston, Virginia, USA (billed as "Washington, D.C.")
  • TFcon USA 2018: October 26th to 28st — Hyatt Regency O'Hare, Chicago, Illinois, USA
  • TFcon Los Angeles 2019: March 15th to 17th — Los Angeles Marriott Burbank Airport Hotel & Convention Center, Burbank, USA
  • TFcon DC 2019: October 25th to 27th — Hyatt Regency Reston, Reston, Virginia, USA (billed as "Washington, D.C.")
  • TFCon Orlando 2020: March 20th to 22nd — Double Tree Hilton, Orlando, Florida, USA — Canceled due to COVID-19 pandemic.
  • TFCon Chicago 2020: October 23rd to 25th — Crowne Plaza Chicago O'Hare, Illinois, USA — Canceled due to COVID-19 pandemic.
  • TFcon Baltimore 2021: October 22nd to 24th — Hilton Baltimore, Baltimore, Maryland, USA
  • TFcon Los Angeles 2022: March 11-13 — Los Angeles Marriott Burbank Airport Hotel & Convention Center, LA, USA
  • TFcon Chicago 2022: October 21-23 — Crowne Plaza Chicago O'Hare Hotel & Conference Center, Illinois, IL, USA
  • TFcon Los Angeles 2023: March 10-12 — Los Angeles Marriott Burbank Airport Hotel & Convention Center, LA, USA
  • TFcon Orlando 2023: October 20-22 — Doubletree by Hilton Hotel Orlando at Seaworld, Orlando, Florida, USA
  • TFcon Los Angeles 2024: March 8-10 — Los Angeles Marriott Burbank Airport Hotel & Convention Center, LA, USA
  • TFcon Baltimore 2024: November 1-3 — Hilton Baltimore Inner Harbor, Baltimore, Maryland, USA
  • TFcon Los Angeles 2025: March 7-9 — Los Angeles Marriott Burbank Airport Hotel & Convention Center, LA, USA

• TFNation
  • TFNation 2016: August 19th to 21st — Hilton Birmingham Metropole, Birmingham, UK
  • TFNation 2017: August 11th to 13th — Hilton Birmingham Metropole, Birmingham, UK
  • TFNation 2018: August 17th to 19th — Hilton Birmingham Metropole, Birmingham, UK
  • TFNation 2019: August 16th to 18th — Hilton Birmingham Metropole, Birmingham, UK
  • TFNation 2020: August 14th to 16th — Hilton Birmingham Metropole, Birmingham, UK — Switched to a virtual con on YouTube due to COVID-19 pandemic.
  • TFNation 2021: August 13th to 15th — Hilton Birmingham Metropole, Birmingham, UK — Switched to a virtual con on YouTube due to COVID-19 pandemic.
  • TFNation 2022: August 12th to 14th — Hilton Birmingham Metropole, Birmingham, UK
  • TFNation 2023: August 11th to 13th — Hilton Birmingham Metropole, Birmingham, UK
  • TFNation 2024: August 9th to 11th — Hilton Birmingham Metropole, Birmingham, UK

• TFUKcon
  • TFUKcon 2022: May 14th 2022 — The Strathallan, Birmingham, UK
  • TFUKcon 2023: May 13th 2023 — The Strathallan, Birmingham, UK
  • TFUKcon 2024: May 11th 2024 — The Cobden Suite, Birmingham, UK

Historic Conventions

• Australian Conventions
  • Sabretron 2004: November 6th — Ashfield Catholic and Community Centre, Sydney New South Wales, Australia
  • OzToyCon 2006: September 23rd — King Street Wharf, Sydney New South Wales, Australia

• Auto Assembly
  • Auto Assembly 2000: 22 October 2000 — Ibis Hotel, Birmingham, England
  • Auto Assembly 2001: 4 March 2001 — Ibis Hotel, Birmingham, England
  • Auto Assembly 2003: 2 August 2003 — Britannia Hotel, Birmingham, England
  • Auto Assembly 2004: 8–9 May 2004 — Britannia Hotel, Birmingham, England
  • Auto Assembly 2005: 4 June 2005 — Clarendon Suites, Birmingham, England
  • Auto Assembly 2006: 3 June 2006 — Clarendon Suites, Birmingham, England
  • Auto Assembly 2008: 2 August 2008 — Clarendon Suites, Birmingham, England
  • Auto Assembly 2009: August 15th and 16th — Smallbrook Queensway, Birmingham, England
  • Auto Assembly 2010: August 13th to 15th — Smallbrook Queensway, Birmingham, England
  • Auto Assembly 2011: August 12th to 14th — Smallbrook Queensway, Birmingham, England
  • Auto Assembly 2012: August 3rd to 5th — Hilton Birmingham Metropole Hotel, Birmingham, England
  • Auto Assembly 2013: August 9th to 11th — Hilton Birmingham Metropole Hotel, Birmingham, England
  • Auto Assembly 2014: August 8th to 10th — Hilton Birmingham Metropole Hotel, Birmingham, England
  • Auto Assembly 2015: August 21st to 23rd — Hilton Birmingham Metropole Hotel, Birmingham, England

• Auto Assembly Europe
  • Auto Assembly Europe 2011: November 12th and 13th — Uppsala, Sweden

• B.O.T.S. (Was briefly known as TF-Conversions)
  • B.O.T.S. 2007: June 10 — Nieuwegein, Netherlands
  • B.O.T.S. 2008: June 8 — Nieuwegein, Netherlands
  • TF-Conversions 2009: June 14 — Nieuwegein, Netherlands
  • B.O.T.S. 2011: May 22nd — Can Dance Studios, Aaslsmeer, Netherlands
  • B.O.T.S. 2012: June 3rd — Can Dance Studios, Aaslsmeer, Netherlands
  • B.O.T.S. 2013: June 9th — Can Dance Studios, Aaslsmeer, Netherlands
  • B.O.T.S. 2014: May 25th — Can Dance Studios, Aaslsmeer, Netherlands
  • B.O.T.S. 2015: June 7th — Can Dance Studios, Aaslsmeer, Netherlands
  • B.O.T.S. 2016: June 5th — Can Dance Studios, Aaslsmeer, Netherlands
  • B.O.T.S. 2017: June 18th — Can Dance Studios, Aaslsmeer, Netherlands

• Charticon
  • Charticon 2013: August 9th to 11th — Charlotte, North Carolina, USA

• Cybcon
  • Cybcon 2000: July 29th — hosted at the event organizer's house Washington state, USA
  • Cybcon 2001: July 14th — hosted at the event organizer's house Washington state, USA
  • Cybcon 2002: July 27th — hosted at the event organizer's house Washington state, USA
  • Cybcon 2003: July 19th — Les Gove Park Multi-Purpose Building, Auburn, Washington, USA
  • Cybcon 2004: July 10th — Les Gove Park Multi-Purpose Building, Auburn, Washington, USA
  • Cybcon 2005: July 9th — Auburn Parks and Rec Admin Building, Auburn, Washington, USA
  • Cybcon 2006: September 2nd — The King Oscar convention center, Tacoma Washington, USA
  • Cybcon 2007: July 14th — The King Oscar convention center, Tacoma Washington, USA
  • Cybcon 2008: August 23rd — The King Oscar convention center, Tacoma Washington, USA
  • Cybcon 2009: July 25th — The King Oscar convention center, Tacoma Washington, USA
  • Cybcon 2010: August 21st — The King Oscar convention center, Tacoma Washington, USA
  • Cybcon 2011: September 3rd — The King Oscar convention center, Tacoma Washington, USA
  • Cybcon 2012: August 18th — The King Oscar convention center, Tacoma Washington, USA
  • Cybcon 2013: August 10th — The King Oscar convention center, Tacoma Washington, USA

• Cybercon Expo
  • Cybercon Expo I 2003: April 5th — Holiday Inn, Cherry Hill, New Jersey, USA
  • Cybercon Expo Wave 2 2003 : November 1st — Radisson Hotel, Mt. Laurel, New Jersey, USA
  • Cybercon Expo Act 3 2004: April 10th — Radisson Hotel, Mt. Laurel, New Jersey, USA
  • Cybercon Expo 2005: July 29th and 30th — New York City, New York, USA

• Cybertrome
  • Cybertrome 2017: May 6th & 7th — SGM Convention Center, Rome, Italy
  • Cybertrome 2018: May 5th & 6th — SGM Convention Center, Rome, Italy

• C.O.N.S.
  • C.O.N.S. 2009: July 19th — Viersen, Germany
  • C.O.N.S. 2010: July 25th — Mönchengladbach, Germany
  • C.O.N.S. 2011: July 24th — Willich, Germany
  • C.O.N.S. 2012: July 22nd — Lobberich/Nettetal, Germany
  • C.O.N.S. 2013: July 21st — Lobberich/Nettetal, Germany
  • C.O.N.S. 2014: October 5th — Lobberich/Nettetal, Germany
  • C.O.N.S. 2015: October 4th — Lobberich/Nettetal, Germany
  • C.O.N.S. 2016: October 9th — Kolpinghaus, Viersen, Germany
  • C.O.N.S. 2017: October 8th — Kolpinghaus, Viersen, Germany
  • C.O.N.S. 2018: September 2nd — Kolpinghaus, Viersen, Germany
  • C.O.N.S. 2019: September 8th — Kolpinghaus, Viersen, Germany
  • C.O.N.S. 2020: October 11th — Mönchengladbach, Germany — Postponed due to COVID-19 pandemic until April 18, 2021.
  • C.O.N.S. 2022: August 7th — Dülken, Viersen, Germany

• Iacon One
  • Iacon One 2006: July 7th and 8th — Grand Wayne Convention Center, Fort Wayne, Indiana, USA

• Ia-Con Online
  • Ia-Con Online 2021: January 30th to 31st — Worldwide, Online

• NTFA Conventions
  • NTFA Mini-Con 2007: November 3rd to 5th — Arlöv, Sweden
  • NTFA NordCon 2010: June 19th to 20th — Aalborg, Denmark
  • NTFA NordCon 2011: Cancelled. They have joined up with Auto Assembly to create Auto Assembly Europe.

• RoboCon
  • Pete's Robot Convention 2017: June 23rd–24th — Covington, Kentucky, USA
  • Pete's RoboCon 2018: June 9th–10th — Covington, Kentucky, USA
  • Pete's RoboCon 2019: June 14th–15th — Covington, Kentucky, USA
  • Pete's RoboCon 2020: July 24th–25th — Louisville, Kentucky, USA — Switched to a virtual con on Facebook due to COVID-19 pandemic.
  • Pete's RoboCon 2021: June 18th–19th — Louisville, Kentucky, USA

• Slag-a-con
  • Slag-a-con 2010: October 9th — Chesterfield, Indiana, USA
  • Slag-a-con 2011: October 15th — Chesterfield, Indiana, USA
  • Slag-a-con 2012: October 13th & 14th — Chesterfield, Indiana, USA
  • Slag-a-con 2013: October 26th & 27th — Florence, Kentucky, USA

• Savcon
  • Savcon 2012: June 23rd & 24th — Savannah, Georgia, USA
  • Savcon 2014: June 27th–29th — Savannah, Georgia, USA

• TFExpo
  • TFExpo 2011: July 30th — Wichita, Kansas
  • TFExpo 2012: August 4th — Wichita, Kansas
  • TFExpo 2013: August 3rd — Wichita, Kansas
  • TFExpo 2014: August 1st–3rd — Wichita, Kansas
  • TFExpo 2015: August 14th–15th — Wichita, Kansas
  • TFExpo 2016: August 5th–6th — Wichita, Kansas
  • TFExpo 2018: August 3rd–4th — Kansas City, Missouri
  • TFExpo 2019: July 26th–27th — Kansas City, Missouri
  • TFExpo 2020: July 31st–Aug 1st — Stoney Creek Hotel and Conference Center, Kansas City, Missouri — Canceled due to COVID-19 pandemic.
  • TFExpo 2022: July 22nd–23rd — Kansas City, Missouri

• TraFest
  • TraFest 2010: November 28 — Higashi Betsuin Kaikan, Tachibana, Naka-ku, Nagoya, Japan
  • TraFest 2012: May 5th — Higashi Betsuin Kaikan, Tachibana, Naka-ku, Nagoya, Japan
  • TraFest 2013: May 5th — Higashi Betsuin Kaikan, Tachibana, Naka-ku, Nagoya, Japan
  • TraFest 2014: February 9th — Higashi Betsuin Kaikan, Tachibana, Naka-ku, Nagoya, Japan

• Transcon (organized by Men in Black Productions)
  • Transcon II: July 1997 — Chicago, IL, USA
  • Transcon III: September 1998 — Toledo, OH, USA

(Held simultaneously with "Microcon", a Microman convention, and "Megocon".)

• Transforce
  • Transforce 1999: 6 June 1999 — A Place in Space / Otaku World, Croydon, England
  • Transforce 2000: 22–23 April 2000 — Connaught Hall, London, England
  • Transforce 2001: 25 August 2001 — Beckenham Public Hall, Beckenham, England
  • Transforce 2002: 10 August 2002 — Fairfield Halls, Croydon, England
  • Transforce 2004: 28 August 2004 — Canons Leisure Centre, Mitcham, England

• TransForMarket (トランスFORマーケット, organized by Hayato Sakamoto)
  • TransForMarket 2014: April 20 — Tokyo, Japan

• Transformers Cybercon
  • Transformers Cybercon 2007: June 23rd and 24th — Shangri La Mall, Philippines

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