Welcome to Sirenum

Sirenum helps organisations meet the evolving needs of the rapidly expanding dynamic workforce. Our technology leverages mobile and the cloud to streamline the management of part-time, temporary, and hourly workers.

Built from the ground up to handle the complexity common to temporary staffing agencies, Sirenum is also well suited to help employers in complex work environments like transport, care, construction, and security. Sirenum helps these organisations in scheduling shifts, monitoring staff, and processing key financial processes including payroll.

With Sirenum, employers drastically reduce costs while growing revenue, increasing staff utilisation and improving health and safety.

Our Story

In 2009, Sirenum founder Benjamin Rubin and his wife landed in Mumbai on their honeymoon. Together they had been running a staffing agency in London, focused on the transportation industry. It was just after midnight as they passed through passport control when Benjamin’s mobile rang and he learned that one of their employees had been hit by a train.

Thankfully, he soon recovered, but Benjamin and his new wife were shaken. They decided never to be in that position again. They needed a tool to deploy and manage their staff safely at multiple locations. And thus, the idea for Sirenum was conceived.

In 2011, the staffing agency started using the platform that would become Sirenum and was able to beat the competition on price, quality, and delivery for the right to staff the 2012 London Olympics. By 2014, Sirenum was a standalone product and began adding more staffing and rail clients.

Since then we’ve moved into other industries and geographies. Our team has developed Sirenum by adding feature by feature, improving with every new challenge and learning from each mistake. The Sirenum platform is now used to manage more than 100,000 workers across tens of thousands of sites around the globe and is adding thousands of workers every month.

Our Mission

Clients and Partners

Sirenum helps clients in multiple industries, from staffing to retail to construction to transport and more. With clients around the globe, Sirenum has demonstrated the ability to address specific HR and regulatory concerns regardless of location.

To help those clients reach their staff management objectives faster, Sirenum partners with industry leaders in software, hardware, distribution and services to deliver a complete solution across the dynamic workforce management lifecycle, from employee recruiting and onboarding all the way to net payroll and invoicing. To learn more, visit our Partners page.


Sirenum is growing quickly and is seeking investment to accelerate that growth further. To help drive Sirenum’s growth, please contact Joshua Pines, Director of Corporate Development and Marketing.

To learn more about investing in Sirenum, please visit our profiles on AngelListLinkedIn, or CrunchBase.

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