Many firms have passed through the start-up map since it was first created in 1999. The companies have been taken off the map for a variety of reasons which are indicated here. These vary from moving beyond the "start-up" stage to being acquired and being shut down. Included here are links to the companies and links to stories about the firms.

Start-up map alumni

1Limited - Graduated
3G Lab - Changed name to Trigenix and then acquired by Qualcomm
4 Links - Graduated
Active Fasteners - Folded
Acuid - Folded
Afonics Fibreoptics - Folded
Alphamosaic - Acquired by Broadcom
AMCET - Diverted away from electronics
Amino Communications - Floated
Amphion - Acquired by Conexant
Anadigm - Moved to US
Ant - Graduated
Applied Generics - Acquired by TomTom
Argo Interactive Group - Graduated
ART VPS - Graduated
Artisan SW Tools - Graduated
Aspex Technology - Graduated
A-Tec International - Graduated
Axeon - Graduated
BlazePhotonics - Acquired by Crystal Fibre
Bookham Technology - Graduated
Braddahead - Acquired
Cambridge Positioning Systems - Acquired by CSR
Cambridge Silicon Radio - Graduated
Cavendish Kinetics - Graduated
CDT - Graduated
Celoxica - Floated
ClearSpeed Technology - Floated
Commtag - Acquired by Smartner
Cyan Technology - Floated
DCT - Graduated
Dinas Technology - Technology problems
Domain Dynamics - Folded
Ecertec - Folded
EDS Ireland - Graduated
ElectroTextiles - Graduated
Eleksen - Floated
Element 14 - Acquired by Broadcom
Enigmatec - Graduated
Equiinet - Graduated
Esgem - Folded
Essient - Folded
Fifteen Seven - Acquired
Fizzle - Folded
Frontier Silicon - Graduated
Global Silicon - Graduated
IFM - Company dormant
ilotron - Folded
Image Fusion Systems - Merged, formed new firm
Imerge - Graduated
Indigo Photonics - Acquired by Insensys
Infinite Designs - Acquired
iS3 - Folded
K9 Technology - Disappeared
Kamelian - Folded
Kymata - Acquired
Lammtara Multiserve - Floated, name changed to 2ergo                                                                       Lanergy - Folded
MetroCom - Folded
Microcosom - Acquired
MicroEmissive Displays - Floated
Micropix - Merged, formed new firm, 4th Dimension Displays
Microwave Photonics - Moved to USA
Nanomagnetics - Folded
nsine - Folded
Optical Micro Devices - Folded
Orthogon - Acquired by Motorola
Oxonica - Floated
Peratech - Graduated
Pogo - Disappeared
Polight Technologies - Folded, technology problems
Power X - Folded
Printable Field Emitters - Folded, IP reborn as Mimiv
pSiMedica - Acquired by pSividia
Pure Wafer - Floated
Radiant - Graduated
Radioplex - Disappeared
RadioScape - Graduated
Sarantel - Floated
Screen Technology - Floated
Sendo - Folded
SI Logic - Disappeared
Sigtronics - Disappeared
Siroyan - Folded
Softsound - Graduated
Southampton Photonics - Floated, changed name to SPI Lasers
Speech Machines - Acquired
Synad Technologies - Acquired by STMicroelectronics
Systolica - Disappeared
Systolix - Acquired by RadioScape
Tenison Technology - Moved to USA
Terahertz Photonics - Folded
The Crystal Consortium - Folded
Ubinetics - Split and acquired by CSR and Aeroflex
Virata - Merged with Globespan, acquired by Conexant
Vulcan Machines - Graduated
Westica - Graduated
Wireless Systems International - Folded