Firma R - Bjølsen
- Riverfront AS
- Rooth
- Røverhistorier AS
- Røst
- Rna AS
- Renovex AS
- Renderblaze AS
- Rohdos Records DA
- Robin Hovind AS
- Ramstad Lyd
- Roohula Nematula
- Roness Trening
- Rune Andersen
- Roots Arkitekter
- Rein Blomquist
- Rebekka Rustad
- Roman Gumeniuk
- Ramasaukas Arunas
- Reidun Garthus
- Rudol Bygg
- Risberg Ada
- Ragni Indahl
- Rinora Jashari
- Raymond Stubberud
- Roman Bats
- Remi Eriksen
- Roya Shahibzadeh
- Romslo Productions
- Rein Oterholm
- Rørservice AS Bjølsen
- Riflegata Barnehage
- Romslo Holding AS
- Resaland Film
- Ragnhild Borgen
- Ruben Aas Arvesen
- Redd Barna Blindern
- Redd Barna Blindern
- Rebecca Marie Zeller
- Rise Sven-Erik
- Renhold - Natalia Bonasewicz
- Rainy Day Invest AS
- Rask & Ryddig AS
- Rullestad Eriksen Tekst
- Roland Pawel Galewicz
- Robert Ørevik Kiropraktor
- Robert Carter Brocklehurst
- Rørlegger 1 Oslo AS
- Ragnhild Bjørnebye Nes
- Ragnhild Nøst Bergem
- Ronoy Øyvind Rønning
- Rema 1000 Treschowsgate
- Reinton Wine Consult
- Raju Bhugyan Begum
- Radio Mangfold Norge 91
- Renan Franca Fernadnes SA
- Radio Mangfold Norge 91
- Rønnings Fair-Go Foretagende
- Robert Emil Berges Intuisjoner
- Risvold Bygg og Riv
- Ray-Tek Service Hubenov
- Rohde-Moe Musikk og Media
- Right Transport Aydarus O Jaylani
- Rom i Bilder Kristine Wilhelmsen