Ryan Overtoom


Ryan Overtoom is a partner and the national managed services practice leader in Sikich’s technology practice. With over 20 years of experience, Ryan effectively leads the managed cloud and managed service areas, including the Network Operation Center (NOC) and Virtual CIO (vCIO) teams that deliver managed services to clients. In addition to these leadership roles, Ryan directs and oversees IT & cybersecurity diligence efforts for the transaction advisory services practice.

He currently provides leadership to Sikich’s corporate office in Naperville, Illinois and has previously led the technology practices of the firm’s Indianapolis and Central Illinois offices while residing in those locations.

Ryan has numerous industry certifications and works with clients in various industries, such as medical, manufacturing, professional services, finance, government and not-for-profit. He works directly with critical technology services including strategic IT planning and consulting, cybersecurity and compliance, network architecture review and design, cloud hosting and applications, managed services, disaster recovery/business continuity, virtualization, application delivery, system reliability and overall deployment/implementation.

Ryan has specialized expertise in outsourced CIO services, IT and cybersecurity due diligence, digital transformation consulting and IT managed service delivery.


  • Microsoft Certified Systems Engineer
  • Citrix Certified Enterprise Administrator
  • Cisco Certified Network Associate
  • Microsoft Active Directory and Exchange Enterprise Administrator
  • Cisco Wireless Specialist


  • Bachelor’s Degree in Economics, University of Illinois at Urbana-Champaign

Ryan Overtoom's Areas Of Expertise