• Porterfield Enterprises
  1767 Placentia Ave
• Ltc Research
  1980 Placentia Ave
• J Penhall Fabrication
  1660 Babcock St # B
• Steve Ritchie Styling Dev
  1912 Pomona Ave
• Dne Motorsports Development
  1760 Monrovia Ave
• Bass Motor Sports
  1908 Pomona Ave # B
• Glaser Motors
  1032 W 18th St
• Burns Stainless
  1013 W 18th St