Core team
Matthew Pike
Matthew Pike
Matthew Pike
Founder & Project Lead
Design-led entrepreneur who has built and scaled teams to over 100 people. After exploring how water systems fall short, he secured Innovate UK backing and brought Rainbox into development in 2025, leading direction, partnerships and delivery.
Ralph Wood
Matthew Pike
Matthew Pike
Product Lead
Product development leader with 25 years’ experience across design, engineering and manufacturing. Formerly senior at Dyson, with deep end-to-end experience taking complex products from concept through to production and scale.
Dr Peter Arnold
Dr Gaurav Nanajkar
Dr Gaurav Nanajkar
Science Lead
Thermal systems authority, physicist and mathematician with 35+ years in fluid dynamics, thermodynamics and modelling. Formerly at Dyson, leading the development of cyclone technology used in millions of products, and later a technical lead across renewable energy systems.
Dr Gaurav Nanajkar
Dr Gaurav Nanajkar
Dr Gaurav Nanajkar
Simulation Lead
PhD, CEng, thermo-fluids specialist spanning CFD, heat transfer and advanced modelling. Former Dyson thermal research engineer, now leading simulation and validation across complex thermal systems, with multiple patents and award-winning work.