Accounting firms need IT support that covers more than routine help desk issues. Secure access, accounting software, cloud infrastructure, cybersecurity, backups, compliance, and reliable support during tax season are all important when client financial data is involved. The companies below range from accounting-focused managed service providers to broader IT firms that support financial and professional-service environments.
1. Gilzor
Gilzor provides software development, technical troubleshooting, application maintenance, cloud and DevOps support, and ongoing product support. Its services are particularly relevant to accounting firms that rely on custom web applications, client portals, internal business systems, or integrations that need ongoing technical attention. The company can also take over existing software projects and address performance, reliability, security, and infrastructure issues. Its current offices include Warsaw, Poland, and Limassol, Cyprus.
Key Facts:
Best for: Accounting firms needing application development, modernization, or technical support
Core services: IT support for accounting firms, software development, application maintenance, technical troubleshooting, QA, cloud and DevOps
Specialization: Web and mobile applications and ongoing product support
Verito focuses heavily on technology for tax and accounting organizations. Its IT support covers accounting software environments, cloud hosting, enterprise security, and managed IT services. The company specifically supports platforms such as Drake, Lacerte, UltraTax, and QuickBooks, making its service model relevant to firms that want IT specialists familiar with accounting workflows rather than a general-purpose help desk.
Key Facts:
Best for: CPA firms and accounting practices needing accounting-aware IT support
Core services: Managed IT, cloud hosting, cybersecurity, technical support
Support: Managed IT support and 24/7 hosting support
Location: Wilmington, Delaware, USA
Contact Information:
Website: verito.com
Phone: 1-855-583-7486
Email: sales@verito.com
Address: 3524 Silverside Road, Suite 35B, Wilmington, Delaware 19810, USA
3. NMGI
Network Management Group, Inc. (NMGI) has a dedicated focus on CPA firms and accounting technology. Its managed IT offering includes proactive monitoring, maintenance, help desk support, cybersecurity, backups, disaster recovery, network management, and cloud desktops. NMGI also works with CCH Axcess, Thomson Reuters products, Lacerte, QuickBooks, and other platforms used by accounting practices.
Key Facts:
Best for: CPA firms seeking dedicated managed IT services
Tabush Group provides managed IT and cloud services for professional service firms, including accounting practices. Its accounting-focused services cover daily IT support, cloud hosting, cybersecurity, and technology management. The company also offers co-managed IT for firms that already maintain an internal IT function.
Key Facts:
Best for: Accounting firms needing managed or co-managed IT
Core services: Managed IT, cloud solutions, cybersecurity, support
Specialization: Professional services and accounting environments
Service model: Fully managed and co-managed IT
Locations: New York City and Boston
Contact Information:
Website: www.tabush.com
Email: help@tabush.com
Phone: 212-252-0571
Address: 148 West 37th Street, New York, NY 10018, USA
LinkedIn: www.linkedin.com/company/tabushgroup
5. Net.Devs
Net-devs provides enterprise software engineering, cloud and platform engineering, modernization, and fintech development. Its enterprise work covers .NET, JVM, Node, Python, and Go, while its cloud capabilities include Azure, AWS, GCP, Terraform, and Kubernetes. The fintech practice focuses on regulated, high-reliability software, making the company relevant to accounting organizations that need custom enterprise systems, integrations, or modernization rather than standard desktop support.
Key Facts:
Best for: Accounting firms needing enterprise software engineering or modernization
Specialization: Enterprise and financial technology
Location: Warsaw, Poland
Contact Information:
Website: net-devs.com
Email: contact@net-devs.com
Phone: +48 571 282 759
Address: Obrzeżna 1D, 02-691 Warszawa, Poland
LinkedIn: www.linkedin.com/company/net-devs
6. Andersen
Andersen provides managed IT services for accounting firms, including help desk support, cybersecurity, cloud and infrastructure management, and compliance-oriented IT services. Its accounting practice offering is designed around the operational demands of CPA and accounting organizations, including the need for reliable systems during tax season and protection of financial information.
Key Facts:
Best for: Accounting firms seeking managed IT with security and compliance support
Core services: Managed IT, help desk, cybersecurity, cloud and infrastructure
Specialization: CPA and accounting practices
Support: 24/7 service coverage
Locations: Global delivery with offices in Europe and other markets
A-listware offers multi-level IT support covering help desk assistance, infrastructure management, cloud services, application support, monitoring, cybersecurity, and technical consulting. Its service model ranges from Level 1 user support to Level 3 engineering assistance. The company lists FinTech, banking, insurance, investment, and professional services among the industries it supports, which makes its broader IT capabilities relevant to accounting organizations.
Key Facts:
Best for: Accounting organizations needing broader IT infrastructure and application support
Core services: IT support, managed IT, infrastructure management, cloud, cybersecurity
Support levels: Level 1, Level 2, and Level 3
Industries: FinTech, banking, insurance, investment, professional services
Locations: UK and USA offices
Notable strength: Combines user support with infrastructure and engineering capabilities
Contact Information:
Website: a-listware.com
Phone: +1 (888) 337 93 73
Email: info@a-listware.com
Address: North Bergen, NJ 07047, USA
LinkedIn: www.linkedin.com/company/a-listware
Facebook: www.facebook.com/alistware
8. ITSco
ITSco provides managed IT, cybersecurity, compliance, cloud, and strategic technology services for CPA, tax, and advisory firms. Its accounting practice offering includes proactive monitoring, help desk and infrastructure management, 24/7 security operations, managed detection and response, backup and disaster recovery, and compliance support around IRS Publication 4557 and the GLBA Safeguards Rule.
Key Facts:
Best for: Small and midsize CPA, tax, and advisory firms
Compliance: IRS Publication 4557 and GLBA-aware services
Service area: North Carolina, South Carolina, and Virginia
Contact Information:
Website: www.itsco.com
Phone: (919) 249-9556
Address: 4601 Creekstone Drive, Suite 102, Durham, NC 27703, USA
LinkedIn: www.linkedin.com/company/itscotech
9. OSKI Solutions
OSKI Solutions develops custom software for financial and accounting-related use cases, including tailored financial systems, reporting platforms, integrations, and business applications. Its capabilities are relevant when an accounting firm needs technology built around its specific workflows rather than relying solely on off-the-shelf accounting software.
Key Facts:
Best for: Accounting firms looking for custom accounting and financial software
Core services: Custom software development, financial software, integrations, application development
Specialization: Accounting and financial technology
Relevant projects: Custom accounting systems, reporting, financial workflows, and integrations
Location: Tallinn, Estonia
Contact Information:
Website: oski.site
E-mail: contact@oski.site
LinkedIn: www.linkedin.com/company/oski-solutions
Address: Kaupmehe tn 7-120, Tallinn, 10114, Estonia
Phone: +48571282759
10. Petronella Technology Group
Petronella Technology Group delivers managed IT and cybersecurity services specifically for accounting firms. Its offering includes 24/7 monitoring, help desk support, cloud hosting for QuickBooks and tax applications, backup and disaster recovery, email security, WISP development, risk assessments, and tax-season capacity planning.
Key Facts:
Best for: CPA firms with strong security and compliance requirements
Whole Technology provides accounting-specific IT services covering cloud desktops, accounting application support, cybersecurity, Microsoft 365, help desk services, workflow automation, and disaster recovery. Its team supports applications such as UltraTax and QuickBooks and can coordinate directly with software vendors when technical problems cross application, server, network, or cloud boundaries.
Key Facts:
Best for: Accounting firms needing integrated IT and accounting software support
Core services: Managed IT, cloud desktops, Microsoft 365, cybersecurity, help desk
Accounting software: UltraTax, QuickBooks, tax and bookkeeping platforms
Cloud: Azure Virtual Desktop
Specialization: Accounting workflows and technology infrastructure
Location: Havertown, Pennsylvania, USA
Contact Information:
Website: www.wholetechnology.net
Email: info@wholetechnology.net
Phone: (215) 383-2164
Address: 121 W. Clearfield Road, Havertown, PA 19083, USA
21century.tech provides custom software engineering across web and mobile applications, integrations, refactoring, and technology consulting. Its work can support accounting businesses that need custom internal tools, client-facing applications, integrations, or modernization of existing software. The company uses AI-assisted development while keeping architecture, code review, and delivery decisions under senior engineering oversight.
Key Facts:
Best for: Accounting businesses requiring custom applications or software modernization
Core services: Custom software development, web and mobile development, integrations, refactoring
Specialization: AI-assisted software engineering
Project types: MVPs, business applications, integrations, legacy modernization
Delivery: Senior-led development with AI-assisted workflows
Contact Information:
Website: 21century.tech
Email: kirill@oski.site
13. The NetSys Group
The NetSys Group provides managed IT and cybersecurity services to accounting and CPA practices. Its accounting offering includes identity security, email protection, endpoint detection and response, 24/7 monitoring, backups, secure document exchange, and security planning. The company also provides cloud, disaster recovery, Microsoft 365, and co-managed IT services.
Key Facts:
Best for: Accounting firms combining managed IT with cybersecurity
Royer Networks focuses on compliance-driven IT and cybersecurity for financial firms, including CPA firms, accounting practices, tax offices, and bookkeeping companies. Its services cover managed IT, Microsoft 365 and cloud management, secure file sharing, endpoint protection, compliance advisory, backups, and business continuity.
Key Facts:
Best for: CPA and accounting practices with compliance-focused IT requirements
Service area: Maryland, Northern Virginia, West Virginia, and the wider DMV region
Contact Information:
Website: www.royernetworks.com
Phone: 301-444-9441
Email: info@royernetworks.com
Address: 800 North Market Street, Frederick, MD 21701, USA
LinkedIn: www.linkedin.com/in/stroyeriv
Twitter: x.com/ST_ROYER
15. Itexus
Itexus develops financial software for regulated financial products and complex enterprise environments. Its services include software support and maintenance, DevOps and cloud engineering, cybersecurity and compliance, quality assurance, and custom fintech development. For accounting firms, the most relevant capabilities are ongoing support for financial systems, integrations, secure cloud infrastructure, and custom software that handles financial data and workflows.
Key Facts:
Best for: Accounting firms needing custom financial software, integrations, or ongoing technical support
Core services: Software development, software support and maintenance, cloud and DevOps, cybersecurity, QA
Specialization: Fintech and financial software
Relevant capabilities: Financial data platforms, integrations, legacy modernization, compliance-oriented systems
Location: United States headquarters with development offices in Europe
Contact Information:
Website: itexus.com
Email: info@itexus.com
Address: 8, The Green, STE road, Dover, DE 19901, USA
LinkedIn: www.linkedin.com/company/itexus
Facebook: www.facebook.com/itexus
Twitter: x.com/ItexusSoft
Instagram: www.instagram.com/itexus.soft
16. Core Managed IT Services
Core Managed IT Services has a dedicated accounting-firm offering focused on keeping technology available during busy periods and managing the infrastructure behind accounting workflows. Its services address remote access, servers, VPNs, terminal servers, QuickBooks, Sage, payroll integrations, cybersecurity, and IT planning.
Key Facts:
Best for: Accounting firms needing managed infrastructure and IT planning
Address: 1530 American Way, Suite 130, Greenwood, IN 46143, USA
LinkedIn: www.linkedin.com/company/core-managed
Facebook: www.facebook.com/coremanaged
Twitter: x.com/core_managed
17. VirtuWorks
VirtuWorks provides managed IT support for accounting and CPA firms, with an emphasis on system stability, data protection, cybersecurity, and compliance. Its services include proactive monitoring, maintenance, MFA, threat detection, managed IT, and co-managed IT for firms that have some internal technology resources.
Key Facts:
Best for: Accounting firms needing managed or co-managed IT
Core services: Managed IT, cybersecurity, monitoring, co-managed IT
Security: MFA and threat detection
Compliance focus: IRS, FTC, and AICPA-related requirements
Support: 24/7 support
Location: Miami, Florida, USA
Contact Information:
Website: virtuworks.com
Phone: 1-888-484-7881
Address: 3850 Bird Road #103, Miami, FL 33146, USA
LinkedIn: www.linkedin.com/company/virtuworks
Facebook: www.facebook.com/VirtuWorksMSP
Instagram: www.instagram.com/virtuworks
18. Tera Partners
Tera Partners provides managed IT services specifically for accounting firms that need consistent support across business applications, infrastructure, vendors, security, and day-to-day operations. Its approach combines managed IT with infrastructure management, security services, backup and disaster recovery, and vCIO consulting.
Key Facts:
Best for: Accounting firms seeking structured IT management and advisory support
Service area: Pennsylvania, New Jersey, and Delaware
Location: West Chester, Pennsylvania, USA
Contact Information:
Website: www.terapartners.com
Email: info@terapartners.com
Phone: 610-550-3110
Address: 780 East Market Street, Suite 110, West Chester, PA 19382, USA
LinkedIn: www.linkedin.com/company/terapartners
19. SoftPro
SoftPro provides custom software development, web application development, cloud development, AI, and ongoing support. Its services are relevant to accounting firms that need custom internal applications, finance-related portals, workflow systems, or long-term maintenance rather than conventional managed desktop support. Its case portfolio includes a CRM platform combining project, HR, and finance management.
Key Facts:
Best for: Accounting firms needing custom business software and ongoing technical support
Core services: Custom software, web applications, cloud development, AI, ongoing support
Relevant capabilities: Finance management systems, business portals, workflow automation
Location: Warsaw, Poland
Contact Information:
Website: soft-pro.pl
Address: Poland, Warsaw, Mazowieckie Voivodeship, 13 Erasmus Ciołka St. 401
Conclusion
The right IT support for an accounting firm depends on its technology environment, security requirements, and the level of technical assistance it needs. Providers on this list cover different needs, from managed IT, cybersecurity, cloud infrastructure, and disaster recovery to accounting software support and custom application development.
When comparing IT support companies, accounting firms should consider their experience with financial and professional services, support availability, cybersecurity practices, compliance requirements, cloud capabilities, and familiarity with the software their teams use. A provider that fits these operational requirements can help keep systems reliable while protecting sensitive financial and client data.
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