Manchester-based broker is the 19th new joiner in the past 12 months.
Network services director Anne Hughes says 85% of N2 members have signed up to the new proposition.
New offering set to start trading in January 2016.
New additions are based in Lancashire and Greater Manchester as well as on the South coast of England.
Current CEO Alex Alway to move to a non-executive director role.
London-based brokers becomes 12th member of the alliance.
Leeds-based broker sets up Gauntlet Broker Partnership for directly authorised brokers.
Executive chairman says Una aims to grow business organically in 2016.
Network figures show declines in membership, turnover and profit in 2014.
Network services director Anne Hughes says members will have access to a unique version of iprism's online portal.
Additions bring total number of members to 119.
Leaders react to confirmation that Willis is set to complete the transition of its N2 model for smaller brokers by the beginning of 2016.
Members face buying decision as restructure set to complete by beginning of 2016.
Leeds broker also employs appointed representative manager following growth.
Head of networks at Marsh, Martyn Denney, says new additions bring GWP controlled by members up to £275m.
Network calls on brokers to help SMEs protect themselves against financial and technological risks.
Network says product will enable broker members to develop new products for the motor trade market.
Gallagher's networks division reports that nine brokers have joined since the start of the year.
CEO Andy Fairchild on strategy, products, insurer partners and profits.
Network plans to take on between 10 and 15 new appointed representatives in 2015.
Towergate-owned network aims to provide more support to Northern Irish members.
Network states it had a 24.5% rise in GWP and over 20 new members.
The Allianz owned business buys Willis's Businesscare as part of the deal.
Troubled Towergate's network division has faced challenges for years.