| 1928 | Allied Radio founded in Chicago |
| 1937 | Radiospares founded in London by JH Waring and PM Sebestyen |
| 1947 | Radiospares establishes an export link with the newly founded Radionics in Dublin |
| 1954 | Radiospares products are aimed at industry and product range is extended beyond radio and television spares |
| 1967 | Radiospares floats on the London Stock Exchange as Electrocomponents plc Over 50% of sales are now to industry |
| 1971 | Radiospares changes its name to RS Components |
| 1984 | Corby warehouse opened |
| 1989 | Corby warehouse expanded RS purchasing office opened in Taiwan |
| 1990 | Verospeed, with operations in France and Austria acquired: renamed Radiospares in France and RS in Austria RS Australia launched following acquisition of former RS distributor |
| 1991 | RS start-up opens in Germany |
| 1992 | RS start-ups open in Italy and Denmark |
| 1994 | Radioparts in Denmark acquired and merged with RS Denmark Distributor acquired to form RS New Zealand |
| 1995 | Distributors acquired to form RS Singapore and RS Amidata ( Spain) |
| 1996 | Distributor acquired to form RS South Africa RS start-up opens in Chile |
| 1997 | RS opens an additional facility in Nuneaton, adding half a million square feet of warehouse space Regional distribution centre opens in Singapore to serve Asia Distributor acquired to form RS Hong Kong 6 regional offices opened in China |
| 1998 | Award-winning internet trading channel launched in the UK New warehouse in Beauvais doubles capacity in France Distributors acquired to form RS Benelux, RS Malaysia and RS Sweden |
| 1999 | Allied Electronics (formerly Allied Radio) acquired. In the year, Allied’s sales are $178m and it has 69 sales offices RS opens in Japan, the first business of its type in Japan |
| 2001 | Distributor acquired to form RS Norway |
| 2004 | Same day despatch offer launched in China |
| 2008 | Production Packaging offer launched across UK, Continental Europe and Asia Pacific |