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Swedbank, a Temenos T24 customer evaluated Oracle Flexcube

Wayfair, a Korber HighJump WMS customer just evaluated Manhattan WMS

Michelin, an e2open customer evaluated Oracle Transportation Management

Westpac NZ, an Infosys Finacle customer evaluated nCino Bank OS

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Citigroup, a VestmarkONE customer evaluated BlackRock Aladdin Wealth

Moog, an UKG AutoTime customer evaluated Workday Time and Attendance

List of Bullhorn Sirenum Customers

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Logo Customer Industry Empl. Revenue Country Vendor Application Category When SI Insight
Gi Recruitment Professional Services 14112 $431M United Kingdom Bullhorn Bullhorn Sirenum Core HR 2019 n/a
In 2019, Gi Recruitment implemented Bullhorn Sirenum to manage scheduling, monitoring, compliance and mobile workforce interactions across its logistics and temporary operations in Italy. The deployment was scoped to Core HR activities focused on shift management, candidate rotation and on‑the‑ground compliance control. The implementation included the Scheduling, Monitoring, Compliance and MySirenum modules of Bullhorn Sirenum, and configuration work emphasized roster automation, real time monitoring of assignments, compliance recordkeeping and mobile candidate engagement workflows. The rollout was completed in under three months and covered HR operations, workforce scheduling teams and onsite compliance managers across Italian logistics and temp sites. Governance changes centralized scheduling and compliance workflows within Core HR processes, enabling faster candidate rotation and streamlined mobile workforce interactions. The deployment delivered an 80% efficiency improvement and faster candidate rotation for the business, as reported in the case study.
The Good Care Group London Healthcare 866 $30M United Kingdom Bullhorn Bullhorn Sirenum Core HR 2019 n/a
In 2019 The Good Care Group London implemented Bullhorn Sirenum as a Core HR application to centralize workforce scheduling for its UK live-in care operations and to improve HR and rostering visibility. The deployment was recorded as customer since September 2019 and was completed in under four months, establishing the year of initial production use early in the rollout narrative. Bullhorn Sirenum was configured to provide workforce scheduling and rostering capabilities, operational reporting, and payroll reporting feeds aligned with Core HR workflows. Implementation included data consolidation and record de-duplication work, with the project de-duplicating approximately 800,000 records to create a single scheduling dataset and enable more accurate carer utilisation reporting. The deployment integrated workforce scheduling processes with Salesforce CRM to synchronize assignment and scheduling data between scheduling and sales/service workflows. Operational coverage focused on UK live-in care sites and associated HR and rostering teams, providing a unified scheduling record source to improve cross-functional visibility between care operations and CRM-driven case management. Governance activity centered on data hygiene and process standardization during the sub-four month implementation window, including deduplication and configuration of scheduling rules and reporting structures. Bullhorn Sirenum thus served as the Core HR scheduling platform to consolidate rostering data, improve carer utilisation reporting, and accelerate payroll reporting for The Good Care Group London.
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FAQ - APPS RUN THE WORLD Bullhorn Sirenum Coverage

Bullhorn Sirenum is a Core HR solution from Bullhorn.

Companies worldwide use Bullhorn Sirenum, from small firms to large enterprises across 21+ industries.

Organizations such as Gi Recruitment and The Good Care Group London are recorded users of Bullhorn Sirenum for Core HR.

Companies using Bullhorn Sirenum are most concentrated in Professional Services and Healthcare, with adoption spanning over 21 industries.

Companies using Bullhorn Sirenum are most concentrated in United Kingdom, with adoption tracked across 195 countries worldwide. This global distribution highlights the popularity of Bullhorn Sirenum across Americas, EMEA, and APAC.

Companies using Bullhorn Sirenum range from small businesses with 0-100 employees - 0%, to mid-sized firms with 101-1,000 employees - 50%, large organizations with 1,001-10,000 employees - 0%, and global enterprises with 10,000+ employees - 50%.

Customers of Bullhorn Sirenum include firms across all revenue levels — from $0-100M, to $101M-$1B, $1B-$10B, and $10B+ global corporations.

Contact APPS RUN THE WORLD to access the full verified Bullhorn Sirenum customer database with detailed Firmographics such as industry, geography, revenue, and employee breakdowns as well as key decision makers in charge of Core HR.