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Why SI-Squared?

We’re not your typical digital health consultants.


SI-Squared is a team of former vendors, product leaders, technologists and health system experts who’ve spent decades in the trenches - building, scaling, and integrating health tech solutions in the UK and internationally.


We’ve lived through the procurement cycles, the “almost” partnerships, the crushing integration bottlenecks, the shifting standards, and the endless POCs.


And we’ve had the same thought you probably have now: “There has to be a better way.”


So we built SI-Squared - to be the kind of partner we always wished we’d had.


We work shoulder-to-shoulder with digital health and health tech vendors to help them:


  • Plug in faster to infrastructure
     
  • Build interoperability by design using FHIR, openEHR, and cloud-native architecture


  • Adopt AI both internally within the organisation and also intregrated into solutions
     
  • Future-proof their product and GTM strategy for the shift toward open platforms
     

We’re a deeply technical, commercially-minded team that helps vendors break through the system, win new business, improve user-experience, and drive loyalty in the their client-base.

Meet the team

Andy Meiner

Dr Lester Russell

Dr Lester Russell

Founder of SI-Squared and 'Chief Square'. Andy has over three decades of working in the digital health vendor space - from programmer to managing director and everything in between. Andy combines technical strategy with commercial drive. 


Current co-Chair of openEHR UK.

Dr Lester Russell

Dr Lester Russell

Dr Lester Russell

Digital health executive and clinician with expertise in healthcare innovation, machine learning, and stakeholder engagement. A proven leader, entrepreneur and MBA graduate, driving impactful solutions and creative disruption in the health IT sector.

Dr Gavin Ray

Dr Lester Russell

Professor Joseph Connor

Gavin is a senior technology leader with 25+ years of specialising in product strategy, system architecture, and marketing. He has driven innovation &  growth across multiple global tech industries + startups in leadership roles and expertise in go-to-market and business development.

Professor Joseph Connor

Professor Joseph Connor

Professor Joseph Connor

Professor Joseph Connor is a prominent figure in the field of artificial intelligence (AI), particularly concerning its application and validation in healthcare. In his role as Chair of Careful AI, he has been instrumental in developing frameworks to ensure the safe and effective deployment of AI technologies in medical settings.

Ian Williams

Professor Joseph Connor

Ian Williams

A proven leader in digital and data architecture, specialising in healthcare.​

 

Expertise in NLP and AI. Passionate about making information follow patients wherever they're cared for, putting the right tools in the hands of staff & using data to improve lives.

Sarah Dicker

Professor Joseph Connor

Ian Williams

Sarah is a certified IT professional with 25+ years of experience in delivering complex healthcare IT projects, specialising in NHS systems, interoperability, and digital change & transformation to improve patient care and operational efficiency

David Hancock

David Hancock

David Hancock

A leader in healthcare interoperability and digital transformation. Expertise in market entry, product strategy, and driving growth through trusted advisory, collaboration, and innovation-focused customer engagement.


Current Chair of INTEROPen.

Robin Breslin

David Hancock

David Hancock

Robin  leverages 30 years of expertise in healthcare interoperability, imaging, AI, and business development to foster innovation and successful healthcare information exchange globally.


Current co-Chair of IHE UK.

Jason Roberts

David Hancock

Dr Peter Collins

Jason has 25+ years' experience, specialising in NHS partnerships,strategic growth, and commercial improvement. Expertise in elective care, market strategy, stakeholder engagement, and delivering scalable solutions for providers, regulators, and commissioners.

Dr Peter Collins

Dr Peter Collins

Dr Peter Collins

Peter is an executive coach working with high-performing CEOs, MDs, and founders, helping them make better decisions and achieve meaningful results. 


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