Who is Rainbow Fin Co? not just a longboard fin company

50 years of making fins - A family owned business


Rainbow Fin Company – known to most as RFC 

     In 1968, a group of young Santa Cruz surfers started building fins to supply the needs of the surfing industry. For five decades, Rainbow Fin Company has been a leading manufacturer of performance fins. Nothing like celebrating the 50th anniversary to bring back memories of how far RFC has come. 

     Most people think of RFC as a longboard fin company. But the truth is that RFC has been making shortboard fins when twin fins were introduced in the late 60’s early 70’s. Not stopping there, they have been producing fins for many other sports like: windsurfing, kiteboarding, wakeboarding, kayaking and SUP. RFC has also had the opportunity to make products for sailboats and research submarines.

     “It has been a great ride for 50 years of fun projects.” says Glen De Witt, “can’t wait for the next 50.”

     Rainbow Fin Co is still located in Santa Cruz, California where Glen and Kathy De Witt, along with their daughter, Sarah Broome, continue to manufacturer, test and design the product line.

     “I am so lucky to be a part of this family business” says Sarah Broome.

     The Rainbow family thanks you for your continued support in doing what we love. 


Glen and Kathy De Witt

Sarah Broome

Glen De Witt - Owner

" I want to personally thank each and everyone one who has bought a RFC fin over the last 50 years.  I love what I do and I am proud to share my quality products with you.  I look forward to another 50 years."

Glen and Kathy De Witt

We appreciate your support for over the last 50 years

what is happening

It is a family affair

Glen and Kathy, along with daughter, Sarah Broome work closely together in their family business

Boardroom Trade Show

Never a dull moment at RFC. Always bright and colorful


Glen and Sarah with team rider Rachael Tilly showing off the custom color Wingnut Cutaway for her board.

Stained Glass 1 of a Kind

Some unique stained glass 1 of a kind custom fins

Not all work

Glen out doing a little fishing.  Dinner is served

RFC Fleet

The RFC van is always on the road visiting your local surf shop to make sure they have what you are looking for.

Honk and wave next time you see it 


United States

 West Coast - RFC # 831-728-2998                    info@rainbowfins.com

East Coast -  RDI  # 321-777-5936                    rain@rdistributing.com

left: Chris, Garrett, Logan and Carl


Europe: Classic Surf Supply  


Japan: Kyowa Trading