The news is the latest in a string of legal difficulties hitting young agencies, owing to the increasingly restrictive contracts being handed to agency employees who subsequently leave to set up their own ventures.
Employment lawyer Dean Jones of Loch Associates told PRWeek: 'People being taken to court over the non-compete covenant are very much in vogue at the moment, and if they get to court the judges are cracking down on them.'
Contracts normally centre around three main covenants: non-solicitation of staff for a fixed period of time; non-solicitation of clients for a fixed period of time; and non-compete clauses that prevent people from working in competition for a fixed period.
However, Jones added that firms often take a 'one contract fits all' approach and rarely amend contracts for employees as they move up the ranks.
One agency figure, who has had legal issues with his former agency, said: 'For a creative industry, PR firms are notoriously unimaginative when it comes to settling disputes.' He added: 'Fighting on either side of the fence is only good for lawyers. Most cases don't make it to court because it is too damn expensive for one or the other side. Sadly, this means those with the deepest pockets win. It is a pointless game of poker fuelled by testosterone.'
Several industry sources noted the large multinational marcoms players were among those most likely to recourse to law. Currently, Weber Shandwick is locked in a legal wrangle with Hill+Knowlton Strategies in the US over claims that top H+K executives solicited clients, staff and confidential information (see below).
James Gordon-MacIntosh, who left Seventy Seven last September to launch Hope&Glory, said: 'If you take clients before the period stipulated in your contract, you will be turned over. If you entice staff before you are allowed to do so you will be done over.
'Although contracts apply to individuals, they do not apply to a future employer, so there is a degree of grey in that.'
How I see it
Nik Done, Co-founder, Unity
When I left to set up Unity, there were some oversights at the time with Band & Brown focusing on the sale of the agency and not the contracts of Gerry Hopkinson and myself.
It meant we did not have a non-compete clause, so the case against us collapsed. Agencies must renew contracts with people who move up the ranks to board positions.
Claire Bridges, Founder, Agency4Agencies
I deliberately set up an agency that would not be in competition with Cohn & Wolfe. Contracts in agencies are extremely tight and are created to actively discourage people from setting up on their own.
£100k How much a case in the High Court could cost a losing agency*
6 Average number of months for which people leaving cannot solicit staff *
1711 Year of Mitchel vs Reynolds case that established non-compete agreements**
3 Number of main covenants that make up employment contracts*
Source: *Loch Associates; **myemploymentlawyer.com
CASE STUDIES: Three high-profile cases involving non-compete agreements, two of which reached the courts
Weber Shandwick and Hill+Knowlton
Weber Shandwick, led by CEO Harris Diamond, is currently pursuing Hill+Knowlton Strategies through the Texas courts after two of its former executives moved to the rival agency.
WS claims that H+K global chief operations officer Ken Luce and executive vice-president Jody Venturoni solicited clients, staff and confidential information. The pair's former employer is looking for a jury trial amid claims that the defendants are guilty of breach of contract and fiduciary duty.
Newgate and Citigate Dewe Rogerson
Last September, Jonathan Clare helped launch Newgate Public Relations, having left his role as chief executive of Citigate Dewe Rogerson.
Clare is running the agency under the umbrella of Porta Communications, launched in 2010 by fellow Citigate co-founder David Wright.
Newgate is thought to have recruited a number of ex-Citigate figures and is understood to have been particularly careful in complying with any legal restrictions.
Band & Brown and Third City
Former Band & Brown directors Graz Belli and Mark Lowe faced being locked in a legal battle after launching Third City last year. Last June, Band & Brown chairman and CEO Nick Band publicly accused Belli of taking his staff and clients for the new venture.
At the time, Belli's agency had taken on Band & Brown clients ING and Ancestry, while senior account director Chris Blackwood had also moved to the agency. The dispute prompted a number of out-of-court settlements.