Ring O' Records

Ringo changed the name to Pyramid Records Ltd.. On April 4, 1975,
Ringo officially declared that RING O' RECORDS was open for business,
even though one single and an album had already been released! Just to
add more confusion to the paper trail, the RING O' name and logo were
trademarks of another Ringo company, Wibble Records Limited.

http://www.rarebeatles.com/ringorec/ringo.htm
That link has all the history of Ring O' Records.

It's quite odd, Ringo wasn't even signed onto it.