Our Vision

Our desire to maintain a strong and continued relationship with our clients is at the core of GIS.

We provide a dedicated, 24-hour service, 5 days a week to our clients across global markets.

By providing a full range of prime broker services from our offices in the heart of the City of London and Hong Kong, we’ve developed strong ongoing relationships with our clients. We’re always available to deliver the solution you need when you need it.

Our Values


We make transparency a key feature of all that we do. This helps to foster a two-way, mutually beneficial relationship with our clients. Good communication every step of the way helps to ensure a seamless client experience at all times. With a strong corporate governance culture through all of our 30+ strong team, our prime broker services are framed by a firm regulatory foundation.

GIS is owned by the holding company Octagonal PLC and is also a member of the London Stock Exchange.

GIS, an LSE member firm and regulated by the FCA, is a licenced payment services provider and an HMRC-approved provider of ISAs.

Our strong compliance culture is championed by every member of staff and is reflected in the fair and transparent service we deliver to our international client base. When you partner with GIS, you’re guaranteed a prime brokerage service that upholds the highest standards of compliance and professional integrity.


Trust is the bedrock of our client relationships and forms the foundation of a successful partnership from the moment you start to work with our team. For over ten years, we’ve been delivering a sector-leading service to over 500 financial services clients, many of whom have worked with us over a number of years to achieve their objectives. Through sound communication and a strong regulatory framework, we provide the best possible platform for a trusting, mutually beneficial partnership.

Our regulatory framework has been strengthened over the past ten years,  an expanding range of permissions. These are:

  • FCA Regulation (since 2005)
  • London Stock Exchange Members (since 2009)
  • GIS subsidiary GIS (FS) HK granted SFC approval (2019)
  • HMRC approved provider of Stocks & Shares ISAs.
  • Licenced payment services institution.
  • Participant in the Financial Services Compensation Scheme (FSCS).
  • GIS’ technological infrastructure has been recognised by the Government’s National Cyber Security Centre who granted us Cyber Essentials accreditation.
  • GIS FS (HK) (since 2019)
  • FATCA compliant
  • Qualified intermediary


Collectively, our team has amassed a diverse range of professional experience both within and outside GIS. Supported by our enthusiastic and committed company culture, we provide our clients with a detail-oriented and committed approach.

We put our knowledge and experience at the service of client objectives, providing a dynamic and supportive customer-centric approach. Having been in operation since 2004, we’ve delivered trade settlements and clearing solutions to our clients through both bull and bear markets. Through market turbulence and uncertainty, we’ve continued to gain strength and momentum year on year, reflecting the depth of experience our team brings to their decision making.

The prime brokers’ team at GIS bring with them over a century of combined experience at global tier-1 financial institutions. These include names such as Barings, LCF Rothschild, ICAP, European Bank for Reconstruction and Development (EBRD), Barclays, Blackrock, London Clearing House (LCH), BNY Mellon, Morgan Stanley, JP Morgan, UBS, Lehman Brothers, Oppenheimer, HSBC, Credit Suisse, Bank of America, BNP Paribas, ING, Scotiabank and Jefferies


Since our foundation, we have placed technological innovation at the heart of our business philosophy. We are always exploring ways to streamline and improve our service, making what we do more sensitive to the needs of our clients. As a result, we’re continually searching for new technologies and applications that can help us do just that.

Using a combination of outsourced solutions, internal R&D on technology and robotics plus integration with our tier-1 global counterparts, we’re embracing technological change to improve the service we offer to our clients. A disaster recovery site is on standby in a managed building just 25 minutes from the London Head Office. It’s primed and ready to go in the event of a major outage or other emergencies at GIS.

Some of the applications we use include:

  • Objectway / Altimis
  • Real Tick
  • Shark
  • Pro Quote
  • Bloomberg
  • Currenex
  • TT Futures Platform
  • RBS Bankline
  • Microsoft
  • LexisNexis