Kramer Sullivan was founded in 2015 by Daniel (Kramer) Tannenbaum and Matthew Sullivan and specialises in litigation finance, mediation and arbitration.

Kramer and Sullivan have a combined experience of 30 years working in litigation, helping individuals and companies of all sizes to make claims that may otherwise have been unaffordable.

Our passion for the legal system is to help those who have been hard done by the system and to provide a level-playing field, regardless of your background, history or case.

We treat every enquiry on a case-by-case basis and are able to reflect on years of experience to help you put together a strong case that is ready for litigation.

Kramer Sullivan is here to help you every step of the way and help you get the best possible outcome.


Daniel Kramer

Daniel Kramer studied history at the University of Nottingham before completing his law degree in London. Kramer worked in litigation for 10 years before working solo and contracting at numerous law firms in the UK. Kramer has a background in consumer finance and property litigation, whilst also dealing in arbitration and shareholder disputes.

Matthew Sullivan

Matthew Sullivan studied modern languages at the University of Oxford before completing his law degree in London. Sullivan worked for one of the UK’s largest law firms for over 20 years, covering arbitration, meditation and litigation. Sullivan has a background in sport, gambling and property litigation.