Whilst acting for Chris Eubank and Eubank Jr, Jonathan advised on the incorporation of their own production company. He negotiated co-promotional deals for the fighter from 2014 after only 11 contests. This trailblazing approach enabled Jr to benefit from the promotional fees, rights fees, broadcast fees and sponsorship fees from his own contests rather than just the fighter purse. He kept Jr as a free agent enabling him to work with different co-promoters and broadcasters this notably enabled him to challenge and win the WBA interim title in his 20th fight on Box Nation, fight on Sky Sports and then challenge Nick Blackwell for the British title on Channel 5. These cutting edge deals enabled Jr to win the IBO world title on ITV Box Office in his 26th contest. Jonathan also negotiated the deal for Jr's participation on the first eight man knock out boxing competition the World Boxing Super Series.

Whilst acting for Anthony Yarde, Jonathan advised on sponsorship deals with Foot Asylum, Addidas and others. He also negotiated promotional agreements with Frank Warren and Queensberry promotions, rights to footage and IP, arrangements surrounding co-promotion, broadcast agreements and more

Whilst acting for Daniel Dubois, Jonathan negotiated one of the most high value brand sponsorship deals with Adidas for any professional boxer in the UK. He also advised on PPV agreements

Jonathan has negotiated television revenue agreements with a number of broadcasters including Sky Sports Box Office, BT Sport, ITV Box Office, HBO and Channel 5. As a boxing advisor Jonathan is directly involved with negotiating broadcast arrangements for his clients which cover PPV splits and upside/backend along with general revenue distribution. Jonathan has negotiated increased fighter PPV revenue shares. The formula negotiated by Jonathan is still used to this day when implementing PPV models for fighters. Jonathan negotiated the deal for ITV to come back into boxing over 30 years after the Big Fight Live was first launched, with the new Pay Per View Channel ITV Box Office in 2017.

Jonathan is renowned for protecting the boxers rights in their intellectual property, clip and footage, branding and sponsorship etc. Such negotiations have included co-promotional terms, budgets and revenue share arrangements. Jonathan has negotiated deals with all major promoters - Matchroom Sport, Eddie Hearn, Queensberry, Frank Warren, Mick Hennessy, Poxon Sports, Sauerland Brothers, World Boxing Super Series (WBSS), Roc Nation, Premier Boxing Champions and Golden Boy. Jonathan is also actively advising a number of entities following the growth of the youtuber/celebrity boxing formats.

Jonathan had advised Stamina 4 Sale, a ground breaking and innovative boxing management and promotional company. Stamina is headed up by the master genius Tunde Ajayi and Jonathan works closely with him and other members of the team to ensure that the boxing services are unbeatable and at the very highest level.