See how Sinewave replaced manual check-ins with the StaySafe lone worker app to protect field engineers, boost visibility, and support safe growth across the UK. 

Sinewave delivers innovative electrical engineering and infrastructure solutions across the UK, supporting large scale EV charging and Renewable energy infrastructure where safety, reliability, and sustainability are essential. As a market-leading Independent Connection Provider with a £30 million turnover (and recently recognised by The Sunday Times as one of Britain’s fastest-growing companies), Sinewave continues to scale its operations while maintaining a strong commitment to protecting its people.  

With more than 100 employees and field-based staff operating everywhere from the north of Scotland to Cornwall, the company’s work takes place in complex, high-risk environments, including live substations and remote outdoor locations.  

Protecting lone workers in these conditions demands visibility, swift communication, and systems that can adapt to unpredictable risks. For years, Sinewave used manual check-ins and phone calls to monitor lone worker safety. This hands-on approach worked well and kept operations running smoothly and safely, but as the team grew and demands increased, they recognised an opportunity to enhance their existing system with more automated solutions. 

Sinewave’s workforce is spread across the country, with engineers often working alone. As Sinewave’s operations expanded in scale and complexity, they recognised an opportunity to incorporate technology that could streamline their processes and take their commitment to worker safety to the next level. 

While their hands-on system had served them well, they identified some opportunities for improvement. The team felt that introducing automated systems could reduce staff workload, save their people time, and offer additional support for everyone. Investing in a robust digital safety solution became the natural next step in their commitment to worker welfare.  

After meeting the EcoOnline team at a UK Health & Safety Show, Sinewave explored the StaySafe Lone Worker app as an alternative to their manual check-ins. The solution stood out for its mobile-first design, ease of use, and seamless integration with Sinewave’s existing work phones and iPads, making it a natural fit for their field teams.  

Sinewave’s work can take workers into challenging settings. Protecting people in these conditions requires structure, consistency, and tools designed for rapid response.  

As their Head of SHEQ described it, “We really wanted an encompassing bubble wrap, if you like — and the app gives us that option.”  

EcoOnline’s Lone Worker solution provided real-time tracking, automated alerts, escalation through a professional alarm receiving centre, and a centralised dashboard that brought everything into one place. It aligned perfectly with how staff already operated.  

“We all carry a mobile phone because everything we do is mobile first… so it made perfect sense to do an app.”    

From day one, the system became part of daily routines. Staff activate the app during morning vehicle checks and throughout callouts, while a dedicated screen in the office displays live lone worker data, ensuring continuous oversight. Features like driving mode, low signal mode, and automated check-ins reduced administrative pressure and strengthened response capability.  

The decision was guided by Sinewave’s people-first ethos: “We did it for the people, not the policy,” they said.

The benefits were immediate. The mobile-first approach worked seamlessly with their existing workflow, while automated check-ins, location tracking and escalation features added advanced layers of protection. 

With more than 46 field-based staff using the app every day, the system is now embedded into the fabric of Sinewave’s operations, used during morning vehicle checks, callouts, and throughout the working day.  

Adoption was quick across the team. The combination of EcoOnline’s support and the app’s intuitive design made the rollout straightforward for everyone. Today, the app is used across the organisation. With interest growing in advanced features like geofencing, StaySafe and Sinewave continues to set new standards in lone worker protection.  

This was more than just a tech upgrade. It represented Sinewave’s continued investment in worker safety, adding new layers of automation and visibility to their already strong safety foundation. 

The shift was captured clearly:  

“Before we had the app, managers were manually checking in on lone workers. While this system worked, it was time-consuming. With EcoOnline’s solution we have an efficient system that we trust, it’s not about saving time, it’s about peace of mind.” 

The change has also strengthened Sinewave’s culture of care. New starters immediately recognise the system as a sign of genuine investment in their wellbeing.  

“It definitely has given us an overarching, more comfortable feeling of the wellbeing of our people out on their own.”  

The benefits reach across the organisation. Operational efficiency has improved, and teams have clearer visibility of lone workers across the UK. The app has made onboarding easier, supported more proactive follow-ups, and helped reduce risk in challenging environments. Lone workers themselves feel secure, knowing the system is always active in the background.  

Today, EcoOnline’s Lone Worker app plays a central role in creating resilient field operations, reinforcing Sinewave’s commitment to protecting its people as the organisation continues to grow.  

Sinewave demonstrates how the right tools can strengthen safety systems and reinforce a culture of protection.