R
- Rotary
- Ricoh
- RadioShack
- RCA
- Regency
- Rhino
- RIDGID
- Rothco
- Rainbow
- Rand McNally
- Rode
- Rycote
- Ram Mounts
- Ram
- Roland
- ROKINON
- Rollei
- Ross
- Realist
- RED
- Revere
- Raven
- Rogue
- REI
- RC
- RedHead
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- Roots
- Revo
- Roberu
- Royal
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- Ranger
- Rebel
- Reach
- Rapid
- RiDATA
- Rosewill
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- RDL
- Realistic
- Renegade
- Rush
- Renaissance
- Roundup
- Radio Shack
- Radiant
- Rosco
- Rolleiflex
- Replay XD
- Roku
- Raritan
- Rite Aid
- RAVPower
- RPS
- Rubicon
- Raymarine
- ROWI
- Recoton
- ReTrak
- Raynox
- Rodenstock
- Rokunar
- Rolev
- Reflecta
- Radiac
- RPS Studio
- RSP
- Rimowa
- Royal Limited
- Retevis
- roocase
- Reiko
- Ritz
- Redrock Micro
- RadioPopper
- Ravelli
- Redfield
- Renata
- Revolabs
- Rotatrim
- Red Rock
- Rerii
- Russian
- rivio
- Rudolph
- RL
- Regula
- RaySun
- Russia
- Roxant
- Rotolight
- RIBCAGE
- RAGECAMS
- RAM Mount
- Ricoh Rikenon
- RedrockMicro
- RetiCAM
- Rongland
- Rainbowimaging
- Ronford Baker
- REMOVU
- Rainbow Symphony
- RB
- Rangers
- R.J.
- RJ
- Replacement Part
- Rollei HFT QBM
- RFN
- Russell Optics
- Rolux
- Raynox Video
- RODE Microphones
- RICHO
- RucPac
- RELAUNCH AGGREGATOR
- Ricoh Pentax
- Rolev M.G.
- Rayqual
- Rare Adapters
- ragecams-contour
- Re-Fuel
- riseuk
- Ritek Ridata
- Ring Adapter
- RUITAI
- ROZOER
- ROLANPRO
- Rolev MG
- Rollei Germany
- Rollei QBM
- Rectilux
- rise
- Rokina
- RRS Really RightStuff
- Rolleicord
- Ring Light
- RoboSHOOT
- Rime Lite
- RT
- Ru
- Rowe Rathenowe
- Refuel
- Ra
- Rogue Photographic Design
- Rocolax
- Raika
- Ruggard
- Red Fox
- Recsea
- R.L.W.
- ReplayXD
- Revolution Imager
- Recesky
- Rocketek
- REIZ
- ROWA
- RILUMA
- RMF
- Rigel Systems
- RTS Telex
- Rogue Gels
- RS
- Rowland Edirol
- RPS Dallas
- Railblaza
- Rubylith
- Remote Audio
- RED ONE
- Really Right Stuff
- REMAX