​Light Futuristic Infrastructure

​LightFi's goal is to make all buildings smarter, greener and healthier. We make buildings that can adapt to the way people use them and our unique sensor solution can be installed into any building over a coffee break. With the money you save by automating your HVAC with our long-range occupancy sensor we give you a return on your investment 6-9 months, every year. Our holistic approach to Space Optimisation, Sustainability and Health & Productivity, means that while you are saving energy you are freeing resources in the building where you need them, improving the comfort, productivity and well-being of occupants.

Space Optimisation

people coming in and out of office over time and energy being used

​Occupancy analytics & affordable space utilisation data


energy use, seen on a iPad screen, goes down when LightFi device is plugged in

Reduce energy consumption and lower carbon emissions by freeing up HVAC capacity

​Health & Productivity

fan keeping a person cool in the office, making them smile

​​Improve indoor air quality and thermal comfort levels

Large energy savings, 10% - 24%, with a 6 – 9 month payback every year

Quick and non-intrusive install, only 20 sensors for 10,000m2 building

Saves time and enables proactive FM with easy web access to live data

Measurable carbon savings and regulatory compliance

I​mproved staff health & productivity due to better indoor air quality

​Improved thermal comfort & reduced complaints, with balanced air delivery

I​ncreased asset value via green premium, BREEAM and WELL

​Affordable occupancy analytics for space utilisation and collaboration


Cambridge uni logo

Get in touch for more information: contact@lightfi.io

who we are

It is environmentally harmful and expensive to light, heat & cool a room that no one is using - and this is happening in almost every building we have encountered. As a result, we have identified a need for a low cost real-time occupancy detection solution to optimise building controls and reduce energy waste.

Using wireless signals and machine learning LightFi gives you a detailed view of how, where and when your space is being used in real-time:
- LightFi’s sensors anonymously detect WiFi and Bluetooth enabled portable devices;
- Plug-and-play install takes 10 minutes for each sensor and covers 200m2 to 400m2;
- Our 3G capability means LightFi does NOT access your network or WiFi

We want to make energy efficient and healthy buildings easily accessible to everyone. Our mission is to tackle climate change by helping to reduce wasted energy in all spaces and accelerate the movement towards net zero carbon buildings.


We have around 100+ devices installed for live pilots across the UK with 5 commercial client sites. We are in the early stages of beta deployment, piloting our solution with clients for HVAC building control.

news and awards
Solar Impulse
Rushlight awards winner for energy efficiency 2018
shell springboard regional 2018 winners
LightFi at the Energyst
Ignite social enterprise
InsightsSuccess top 10 automation tech of 2017
climate kic logo, EIT