The acquisition history of privately held conglomerate Rigby Group makes interesting reading, with much of it in recent years focused on building up the services side of its reseller business, SCC.Such is the rationale behind Rigby Group's latest investment, a minority stake in London-headquartered comms service provider, SIPCOM. Founder and CEO Daniel Allen remains SIPCOM's majority shareholder. Terms were not disclosed.This looks all very sensible will undoubtedly push SCC further up the rankings in the UK infrastructure Services market (and see SCC: Services investment paying off).