The Coventry-based company, which deals with 100m items of mail a year, was pitted against previous contract holder Instant Help, along with Spirit and DP Direct, for the three-year contract.
As well as general direct mail, Inkfish will be responsible for mailing all 150,000 members with newsletters, learning resources and other institute materials.
Director of marketing at ICAEW Sue Best said: “With more than one million mailing items sent out annually, we are delighted to be working with Inkfish to deliver the highest standards of service to our members and stakeholders.”
Inkfish, which is part of the Domestic & General Group, will use its multi-million pound site in Coventry, which incorporates Pitney Bowes and Buhrs intelligent enclosing equipment, as well as Xerox and Océ digital printers, to fulfil the deal.
Have your say in the Printweek Poll
Related stories
Latest comments
"Thank you for the opportunity to comment on this Jo, and PrintWeek!
Please feel free to get in touch with the Howden Print Team to arrange your own Free of Charge Cyber Micro-Penetration Test to help..."
"I never quite understand the statements such as "achieved such a positive outcome for this well-established business".
The established business unfortunately failed and no longer exists, a..."
"Genuinely sorry to read this."
Up next...

Commitment, presence and energy will be much missed
Tributes paid to Lascelle Barrow

Around 300 roles may be affected
International Paper to close five UK packaging sites

Asset ownership delayed process
Reflections to be liquidated

'Start of a new era'