NBGI Private Equity

NBGI Private Equity - Ventures

Sound judgement and commercial insight drawing on our own management experience in a wide variety of businesses.

The Team

Aris Constantinides

Aris Constantinides

Aris is the founder and Investment Director of NBGI Ventures, responsible for its overall strategy and management, and leads its presence in the medical technology sector. Aris established NBGI Ventures in 2001, following five years in venture capital with Deutsche Bank’s venture capital team and CSFB’s Cabot Square Capital fund. He started his career at Bankers Trust as a derivatives specialist.

Aris holds a B.Eng from Imperial College and a SM from MIT in Mechanical Engineering and an MBA from INSEAD.


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Gerard Harper

Gerard Harper

Gerard joined NBGI Ventures from Nomura Code, where he was VP Corporate Finance and worked on a broad range of transactions including IPOs, secondary fundraisings, and M&A mandates mainly involving small-cap life science companies. Prior to that Gerard worked in communications and strategic planning consulting to the pharmaceutical and biotech industries.

Gerard received a BSc (Hons) in Pharmacology & Physiology from the University of Manchester and an MPhil in Bioscience Enterprise from the Judge School of Management at the University of Cambridge.

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John Milad

John Milad

John brings to NBGI Ventures an extensive track record in healthcare corporate finance and private equity. He joined from Insight Capital, which he founded to provide fundraising, strategy and M&A advisory services to life sciences companies and investors.

John’s previous roles include Special Advisor to Atlas Venture, Interim CFO at Nitec Pharma, and Associate Director at Nomura International plc, where he was involved in a number of high profile transactions. John started his career as an investment banker at Lehman Brothers, followed by three years at Kirkland Investors. John holds a BA in Political Science from University of Chicago.

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Stéphane Sallmard

Stéphane Sallmard

Stéphane is the Business Development Advisor at NBGI Ventures, assisting portfolio companies on commercial and strategic decisions. Most recently Stéphane was the CEO of Optos Plc, which he grew from $1M to $67M in sales over 5 years and listed on the London Stock Exchange in 2006. He started his career as a System Engineer at IBM Finance and has held several senior executive positions at Wang France and General Electric Medical Systems.

Stéphane holds a diploma form Ecole Supérieure d’ Electrcité Industrielle de Paris and completed the Executive Management program from Kellogg School of Management (Chicago).

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James Wong

James Wong

James joined NBGI Ventures in November 2009 and is responsible for evaluating investment opportunities in medical technology companies. He joined NBGI Ventures after three years with Cambridge Consultants, bringing experience from a variety of strategic consulting and due diligence projects with a technology focus in medical technology, biotechnology and pharmaceutical industries.

James holds a BSc (Hons) in Biochemistry from the University of London and an MPhil in Computational Biology from Wolfson College, University of Cambridge.

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