Contact & Company

What we do

NeutronGate Oy is a Finnish process instrumentation company established in 2014. We offer elemental analysis measurements for industrial customers.

We are system integrators: We combine neutron sources with detectors to create measurement systems. We build and use our proprietary neutron generators to offer flexibility to our customers.


Sepänkatu 5 H
11710 Riihimäki, Finland

Customer service and inquiries

Phone : +358 40 025 9163
Email :

Contact us!


Neutron technologies are an emerging field and they will disrupt the utilization of current measurement technologies in several different industries. NeutronGate seeks to be a major actor in this process.


Leverage neutron technologies to offer industrial companies accurate, prompt and representative data.



We deliver what we promise from project planning to implementation and do not over commit. We are relentless in solving the customer problem.

Meet the team

Our Team

Portrait of Hannes Vainionpää

Hannes Vainionpää

Founder, CEO,
Hardware development

Hannes is the founder and CEO of Neutrongate, and responsible for hardware development and sales.

He has done post-graduate studies at Berkley national lab on ion source and accelerator technology. Hannes has 15+ years of experience in the development of neutron generators and neutron based measurement systems.

Portrait of Sakari Ihantola

Sakari Ihantola

Software & Hardware development

Sakari works both with the theoretical basis of measurements and the implementation.

Sakari holds a doctoral degree in nuclear physics, with post-graduate studies at Imperial College London. He has 15+ years of experience in nuclear physics and detector technology. Sakari is a partner at NeutronGate.

Portrait of Pekka Salmi

Pekka Salmi

Mechanics and engineering, hardware development

Pekka is responsible for manufacturing parts for neutron generators together with developing mechanical parts of hardware.

Pekka is an inventor and has a background of 30+ years in four previous startups. Pekka is a partner at NeutronGate.

Photo of Teemu Sipilä

Teemu Sipilä

General counsel, Investor

Teemu is our legal advisor and a board member.

Teemu has 20+ years of experience in legal counseling and managment from both large and small corporations.

Photo of Jens Kyllönen

Jens Kyllönen

CO-lead investor

Jens is a board member.

Jens has been a professional poker player for 14+ years, having won a WSOP bracelet in 2016.

Currently Jens is an enterpreneur.

Jens holds a M.Sc (Economics & business administration) degree.

Picture Rakesh

Rakesh Dubey

Sales representative: Asia, Africa

Rakesh Dubey is NeutronGate consultant acting in South Asia, South-East Asia, and African region.

He recieved Ph.D. degree in experimental nuclear physics from Inter University Accelerator Centre. He has 10+ years experience in nuclear  physics and accelerator technology.  

Portrait of Markku Paaso

Markku Paaso

Software development

Markku is responsible for software development of neutron generator. Additionally, Markku is a partner.

Markku is a medical doctor.