Who We Are

Onyx AI is a different kind of organisation. We aim to work with founders and CEOs at start-ups and SMEs to enable them to realise their ambitious business goals. Equally, our skills were developed in the Corporate world so leading and advising cross-functional teams in large organisations is also part of our DNA. Who our clients are is important to us. We would like to work with talented and driven teams who have similar values to ourselves : High integrity, Digital technology driven, High performance, Collaborative and Benefiting society whilst realising growth and profitability. Our combined functional expertise in Commercial and Financial backed up by solid Leadership experience enables us to deliver an end to end service to support all aspects of the growing business.  Onyx AI - Strengthening your will power to succeed.   

Subhashis Ghosh


Subhashis is an experienced Commercial leader in the Healthcare industry, leading cross-functional product teams and sales organisations in national and international markets.  His expertise is in strategy and product commercialisation, having led and managed through all phases of the product life cycle. Subhashis can deliver in Onyx AI's Commercial and Leadership services.

Sarah Ghosh FCMA, CGMA


Sarah is a proven Finance leader with more than 25 years experience gained in Technology, Finance and Organisational change.   With a blue chip, corporate and SME background Sarah has held leadership positions including at C-Suite level, directing Finance and Operational teams to deliver ambitious revenue, efficiency and growth targets. Sarah can deliver in Onyx AI's Finance and Leadership services.

Some of the organisations Sarah has worked with:

Electronic Data Systems (EDS), General Motors, NatWest Bank, PwC, Lloyds Register, St George’s NHS Trust, KBR, Central Surrey Health, SweetTree Home Care Services / Connect.

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