This is a member-editable list of suppliers, other than eBay…
Electronics
Components
- Rapid Electronics
- Farnell
- RS (Radio Spares)
- Cricklewood Electronics
- Toby Electronics
- TME
- Keytronics
- Mouser (USA)
- DigiKey (USA)
LEDs
Hobbyist Parts
- Proto-Pic
- SKPang
- #DigitalMeans
- Maplin
- Cool Components
- Oomlout
- Ooznest
- HobbyTronics
- Bitsbox
- 4tronics
- AB Electronics
- 13cm
- ModMyPi
- MeArm
- Adafruit (USA)
- Sparkfun (USA)
- Seedstudio (China)
- DF Robot (China)
- Linksprite (China)
Robotics
General / Other
- CPC
- Scientific Wire Company
- Mindsets (formerly MUTR / Middlesex University Teaching Resources)
- Tindie
- Northern Connectors
- WirelessThings
Tools
- Dancap (Hakko Distributor)
- Mega Electronics (PCB production supplies)
Services
PCBs & Stencils
- Seeedstudio Fusion
- OSH Park (formerly Dorkbot PDX / Laen’s PCB)
- Ragworm
- SMT Stencils
Hosting
Domain Registration
Laser Cutting
Die Cutting
3D Printing
Materials
Textiles
Model Making & Art Materials
Wood
- Moss & Co (rough sawn hardwoods & softwoods)
- Acrelane
- Whitten (wide range plus laser ply and laser MDF)
- Champion
- Travis Perkins
- B&Q
- DW Mouldings
- Creffields
- Catford
- Whitten Timber
Plastic
Metal
- Parkside Steel
- Metal Supermarkets
- IMS
- Aluminium Warehouse
- Metals 4u
- Smiths
- Noggin End Metals
- Click Metal
- Dore Metals
- Orion
Paper / Card
Consumables
Vinyl Cutter
3D Printer
Laser Cutting
Engineering
General
Model Making
Fixings
Bearings
- Simply Bearings
- Davall
- HPC
- SDP/SI
- Belting Online
- ondrives
- Bearing Station
- Direct Bearings
- Technobots
- Transdev
- McMaster-Carr (USA)
Fixings
Tools
- Walsh
- S&M Tools & Hardware
- Machine Mart
- Amadeal
- RDG Tools
- [Dieter’s Fine Tools] (http://www.fine-tools.com/) (EU)
- Micro Tools (DE)