Mailcom (UK) into administration on Friday (17 December) with FRP Advisory, which is understood to have sold the company's order book to OTM.
FRP Advisory could not be reached for comment at the time of writing.
OTM has confirmed that it has acquired assets representing around 35% of Mailcom's business and that around 30 members of Mailcom (UK)'s staff will transfer to OTM under TUPE regulations.
Linda Scott, chief executive of OTM said: "The business taken on by Opus Trust Marketing will be transferred to our Leicester operation as soon as practically possible. In the meantime we are doing our best to help those TUPE employees who do not wish to relocate."
According to records filed at Companies House, Mailcom (UK) chief executive Neil Shotton resigned as a director on 4 August 2010, while Michael Coles and Andrew Shotton were both appointed as directors on the same day.
Industry sources have cited the loss of a major contract with Santander as a potential contributing factor in the company's demise.
In April this year, the business and assets of Mailcom PLC were sold in a pre-pack deal for £1m to Mailcom (UK) after the entire business was places into administration. Nearly 80 staff lost their jobs at the company's other facility in Boldon, Tyne and Wear when administrators from Bond & Partners were appointed to the site.
Mailcom PLC left £1m worth of debt behind, taking the total amount of debt the entity had dumped to £4.5m. On 19 June 2009 Mailcom (North) went into administration, leaving £3.5m owed to unsecured creditors. It was sold to Mailcom PLC for £85,000.
Mailcom (UK) is not associated with franking machine business Mailcoms.