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HR & Payroll Consolidation: Scaling Operations Through an Engineering Services Merger

THE CHALLENGE

A 4,500 employee project delivery management firm was undergoing a major merger, combining 10 companies and 1,500 additional employees into an existing 3,000-employee organization. The integration required consolidating five disparate payroll systems into a single HCM platform. With union employees, prevailing wage requirements, and mid-quarter/mid-year balances to manage, leadership needed expert guidance to ensure compliance, data integrity, and a seamless transition – all within an aggressive timeline of less than two months.

OUR ROLE

enhanceHCM was engaged to lead the HR and payroll consolidation, providing both strategic oversight and tactical execution to streamline processes, align policies, and build operational consistency. The team acted as a trusted partner, ensuring compliance, minimizing risk, and safeguarding employee experience during a high-stakes merger.

SOLUTION

  • Payroll & HR Consolidation: Migrated 10 companies across five payroll systems into one unified HCM platform.
  • Data Migration & Cleanup: Executed data merges, balancing mid-quarter and mid-year reporting requirements while ensuring accuracy and compliance.
  • Process & SOP Development: Established standardized payroll and HR practices across the enterprise.
  • Team Training: Delivered hands-on training for 16 payroll and HR practitioners, equipping teams with best practices and system knowledge.
  • Project Oversight & Governance: Took ownership of the full project lifecycle, aligning resources, creating internal synergies, and implementing communication protocols to maintain clarity and accountability.
  • Compliance Assurance: Ensured that prevailing wage requirements, PTO plans, and union-specific complexities were fully addressed.

OUTCOME

The client successfully completed the integration of 10 companies in under two months with minimal disruption to business operations. The streamlined payroll and HR structure improved compliance, enhanced internal communication, and created a scalable model to support future growth. The project safeguarded market leadership while reducing risk, positioning the organization for continued success in a dynamic and competitive environment.