I bought an old Volkswagen Magazine that was published in 1969. In the back it tells you who was building Dune Buggies back in that year. Here they are. Very interesting if you don't know this already. It had addresses too, but I left them out.
Sports Buggy Manufacturers
Action Fiberglass
Santa Ana, CA
Allied Fiberglass Mfg
Riverside, CA
“Fun Buggyâ€
A.T.V. Industries
(formerly Diana Imports)
Dearborn, Mich
“Sand Sharkâ€
Auto Craft, Inc
Portland, OR
“Ottokrossâ€
Autodynamics Corp
Marblehead, Mass
Bermoco, Inc.
Berkeley, CA
“HTVâ€
Berry Plasti-glass
Long Beach, CA
“Berry Mini-T
Bob’s Motor Body
Sunnyvale, CA
“Llamaâ€
Burro, Co.
Santa Ana, CA
“Burroâ€
Bushmaster
Austin, Texas
“Bushmasterâ€
Crusader Cars
Stockton, CA
“Crusaderâ€
Cyclone Automotive Products
Burbank CA
“Road Runnerâ€
Dearborn Automobile Co., Inc.
Marblehead, Mass.
“Deserterâ€
Eisert Racing Enterprises
Costa Mesa, CA
“Bugettaâ€
EMPI
Riverside, CA
“Imp†and “Sportsterâ€
Fibercraft
Reno, NV
Fiberfab
Santa Clara, CA
“Clodhopperâ€
Fiberglass Products Co.
Los Angeles, CA
Funco
Cucamonga, CA
“Wampuskittyâ€
Fun Hugger
San Bernardino, CA
“Fun Huggerâ€
Haddock Conversions Co.
Santa Ana, CA
“Dunemasterâ€
Hooker Industries
Ontario, CA
“Wallabugâ€
R.B. Irwin Equipment, Inc.
Buffalo, NY
“Wranglerâ€
Dean Jeffries Automotive Styling
Hollywood, CA
“Kyoteâ€
Kellison, Inc.
Lincoln, CA
“Sand Piperâ€
Lincoln Industries
Lincoln, CA
“Sharkâ€
B.F. Meyers & Co.
Newport Beach, CA
“Manx†and “Tow’dâ€
Playboy Mfg. Co.
San Mateo, CA
“Playboyâ€
Joe Poty Enterprises
Santa Fe Springs, CA
“Sand Roverâ€
Revmaster
Riverside, CA
Safari Enterprises, Inc.
Garden, CA
“Safariâ€
Sand Chariots
Fullerton, CA
“Ocelot II,†“Super Sportâ€, and “Brush Buggyâ€
Sand Mfg.
Ft. Worth, Texas
Sand Techniques/ Hot Rod Hardware
Rosemead, CA
“Sandbuggyâ€
Stevens Co.
Gardena, CA
VWX Specialty Co.
Kermit, Texas
“Paisano†and “Fieraâ€