Latest update: October 2014. Thanks everyone for your comments!
Don’t spend any more time browsing desperately the internetz to find parts for your RepRap, Arduino kits or local sensors and PCBs distributors for your new project. I put together this worldwide list of online stores selling open source hardware. There is a big chance your country is in it and that you will finally find your favourite local online store to get open source electronics, robotics, parts, kits, materials and supplies for your hardware projects.
Leave a comment below the post if you own an online store that is not in the list or if you know a great online resource that should be in it.
a2aPrinter: RepRap 3D printers
eckertech: RepRap parts and printers
Cooking Hacks. Catalog of open hardware products and possibility of on-demand products.
Electric Stitches. Specialized in e-textiles
eMakerShop: RepRap shop
Evil Mad Science creates and sells open hardware kits and parts for world domination since 2007.
HobbyEngineering : science & engineering toys for education
HotEnds: RepRap hot ends supplier
LiquidWare. Engineering company selling open hardware products, with a focus on Android, sensors and Arduino environments.
Little Bits is an open source library of electronic modules that snap together with tiny magnets for prototyping and play. Many fun kits and parts available in the online store.
Lulzbot: RepRap 3D printer
MakerGear: RepRap shop
Maker Shed is the online hardware store of MAKE Magazine. A cool place to find all kind of kits, parts, toys, books, robots, wearables and goodies.
MendBot Shop: RepRap parts
Nedocon. Makes boards and kits. Incorporated in NYC, NY.
Parallax. Creators of the BASIC stamp.
The Future is 3D: RepRap parts
Robosprout: RepRap shop
SparkFun Electronics is the online retail store that sells +10 years around. Produce and distribute Open Electronics.
XESS. Open source boards.
Willow Garage: Robots
Central and South America
RepRap Austria: RepRap parts
Olimex. Design and distribute printed circuit boards, sub-assemblies, and complete electronic products.
Let-Elektronik. Danish online store for open hardware electronics.
Evola is a French distributor for Arduino shields, Seeed Studio and SparkFun.
Hackable Devices. French makers of Open Hardware projects, Makerbot and educational open source electronics distributor.
PAOparts: RepRap shop
Snootlab is a French company and online store distributing Arduino-based hardware, Adafruit, SparkFun and TinkerKits products. Snootlab team also creates and sells its own Arduino shields.
2printbeta: RepRap printers
RepRapFab: RepRap shop
RepRap Source: RepRap shop
Watterott. German based oshw store, worldwide shipping.
ac123dc: RepRap parts
Arduino store is the new online store of the Arduino project, selling all kind of Arduino shields, boards and accessories, tinkerkits, sensors and DIY books.
Open Picus. Italian company producing open hardware products and tools for the Web of Things
resco-research: RepRap shop
Mendel-parts: RepRap parts
SceneLight: specialized in hardware for theatres-related projects
xyzprinters: RepRap shop
Skb-Kiparis Ltd: RepRap parts
Elektromodely. Open source electronic store based in Slovak Republic, focusing on parts for flying devices.
Leap to 3D: RepRap parts
RepRapBCN: RepRap shop
Play-Zone. Switzerland based oshw online store.
RedWizard3D: RepRap shop
RepRapCentral: RepRap shop
RepRapKit: RepRap shop
RepRapPro: RepRap parts and more
Zeni Kinetic: 3D printing filament supplier
3D Industries Australia: RepRap parts
3DStuffmaker: RepRap parts
Bilby CNC: RepRap parts
Create3D: RepRap parts
Seeed Studio. Open Hardware distributor company based in Shenzen, China. Design also its own products under the name of Bazaar.
Romscraj: RepRap parts
Other useful resources:
This list of online open source hardware stores is brought to you by MakingSociety under the CC-by-SA license, which means that you can freely share, remix and make commercial use of this content as long as you attribute it to MakingSociety.com and keep the same license.