Barry Lynch

CEO, ηezo (formerly V-Quest)

Barry is the CEO of ηezo (formerly V-Quest), a design efficiency platform that helps architects and engineers slash cost and carbon through smart data and AI.

A Chartered Construction Professional and Fellow of the NZIQS, he brings over 25 years’ experience in construction, mastering tools like VDC, Digital Twins, and integrated data systems. Barry has started, scaled, and exited consultancies across Europe and New Zealand, delivering projects from high-rise and commercial to adaptive re-use, residential, and civil infrastructure.

Today, his focus is simple but transformative, helping designers save time, cut costs, and create more sustainable buildings. He strongly believes, decarbonisation isn’t just an environmental goal, it’s a financial opportunity to reset the cost inefficiencies baked into how we build.

Ravi Dwivedi

Sales Manager, Nauhria Reinforcing

Ravi currently holds the role of Nauhria Reinforcing Sales Manager with a focus on educating the market about the low embodied carbon nature of NAT Steel which Nauhria Reinforcing has been importing since 2003. He held the position of General Manager Property at Nauhria Group for nearly 4 years prior to taking the current role.

Ravi holds a M.B.A and PGDip in Business Management from University of Auckland, BCom (Hons) and PGDip Management in Finance from Delhi University, India. With over 20 years of NZ, AU and overseas experience in banking and financial services, he is also a Fellow of NZCFI. He also worked in numerous senior management and sales roles in the Fintech, Utilities, Solar and Building industry in the last decade.

An environmentalist by heart, Ravi cares deeply about sustainable building construction practices and wish to keep working in this sector to make a meaningful difference.

Saravanan Natarajan 

Asst. VP Marketing, NAT Steel

Saravanan Natarajan (aka Saran) holds a master’s degree in Structural & Geotechnical Engineering and has been working with NatSteel Holdings Pte Ltd for the past 25 years. Currently Asst. Vice President, Marketing responsible for development and marketing of new products and services. 

Saran is a senior member of the Institution of Engineers, Singapore, and Secretary of Singapore Standards SS560 working group. He plays an active role in SEAISI (South-East Asia Iron & Steel Institute) as the Chairman of the Committee on Steel Application in the construction industry and delivers guest lectures at BCA Academy, IES and Tertiary institutes in Singapore.

Matthew Cutler-Welsh

Business Development Manager - Residential, NZGBC

Matthew leads work on healthy lower carbon homes at the NZGBC.  Overseeing the auditing, research and for Homestar, the national standard for healthy lower carbon homes and buildings.
After completing his Honours Degree in Natural Resources Engineering Matthew now has 15 years of experience leading residential energy efficiency projects and education programmes in New Zealand and Australia. In 2016 he joined the Board of the Passive House Institute New Zealand.

An experienced presenter, facilitator and podcaster, Matthew has interviewed over 200 architects, builders and industry experts from around the World on the Home Style Green podcast.