Bullhorn Acquires Sirenum

Bullhorn has acquired Sirenum, a London-based provider of shift scheduling and workforce management software for enterprise staffing companies, to strengthen its Bullhorn for Salesforce offering and help customers manage shift-based work at scale. The deal (terms undisclosed) will accelerate Sirenum’s product roadmap and expand Bullhorn’s capabilities—particularly for large European staffing agencies managing hundreds of thousands of hourly workers.