Managed IT Services for Accounting Firms

Your clients trust you with their most sensitive client information, but who do you trust with your IT? Diamond IT delivers end-to-end IT management and IT consulting as a managed service provider for accounting firms with 10+ employees that demand reliability, security, and expert support through strategic outsourcing or augmenting in-house teams.

Years in Business

9.7/10

Client Satisfaction Rating

99.99%

Average Client Uptime

Turn IT chaos into a compliant, scalable system for your accounting firm

Accounting fi rms can’t afford tech issues during tax season, or any other season.

That’s why we built a proven method to move you from unreliable IT to fully managed infrastructure that supports growth, security, and regulatory compliance.

Get seamless onboarding

Precision Audit

We start by auditing your current technology, workflows, and regulatory environment . We learn how you work, what systems you rely on and what’s not working anymore.

Strategic Roadmap

Based on the audit, we create a custom IT roadmap that aligns with your tax season surge, compliance demands, remote access needs, and broader business goals.

Fortify

From modernizing your infrastructure to hardening cybersecurity solutions and streamlining data backups, we deploy fully managed IT solutions with zero disruption to your IT team.

Transform

From reactive to proactive, with 24/7 eyes on your IT systems to ensure business continuity. Once the transition is complete, we monitor everything in real time, so your systems stay secure with rapid response times.

Diamond IT eliminated our need for in-house IT staff.

“Diamond IT eliminated our need for in-house IT staff. That was one of the main things we wanted when we contacted them.

The headache of owning and maintaining IT equipment is ridiculous. Diamond IT took that completely off our plate.

We had a file server from 2002 that started to fail. The cloud wasn’t an option until Diamond IT talked to us about security. They migrated our mature server with all our old data formats—a huge task I’m glad we didn’t have to handle ourselves.

At the end of the day, when you shut down your computer, you know your clients’ data is safe and secured. You don’t worry about the file server door being locked or the building AC staying on. You go home and sleep well knowing Diamond IT is taking care of everything.”

Jim Karp

Charles, Blank & Karp, LLP

Get expert IT support trusted by accounting firms like yours

The IT backbone your accounting firm needs to stay protected and productive

From secure financial data management to quick remote access, we provide IT solutions built for the accounting industry to protect sensitive financial data. Our accounting IT security framework applies zero-trust principles, 24/7 threat detection, and encryption standards that go beyond compliance requirements, keeping your client data protected at all times.

Cybersecurity for Accounting Firms

IT Helpdesk Support for Accounting Firms

Compliance IT for Accounting Firms

Data Protection for Accounting Firms

Disaster Recovery for CPA Firms

Microsoft 365 for Accounting Firms

Discover how seamless IT can transform your firm’s efficiency & security

IT support for the software your accounting firm relies on

From installation to ongoing support, we keep your tax preparation, billing, and office software running at top efficiency. We talk directly with software vendors to fix issues, handle contracts, control licensing, and maintain your systems properly.

Let us know what you’re looking for and see if we’re a good fit

Meet compliance requirements without the complexity

Stay ahead of evolving regulations with IT solutions designed to protect your law firm, enhance client service, and secure your client partnerships.

IRS & FTI Data Protection

Meet federal requirements for handling tax-related client data and financial records.

NIST Cybersecurity Standards

Align your data practices with the NIST cybersecurity framework to improve data security.

SOC 2 Reporting

Prove data is handled securely with controls designed for client privacy and regulatory confidence.

FTC Safeguards

Follow financial and consumer protection laws to avoid penalties and reputation risks.

Why accounting firms choose Diamond IT over competitors

IT issues can disrupt your workload, slow down CPAs, and put client data at risk. You need an accounting IT partner and managed IT provider that acts as a dedicated MSP to give you smooth operations, high-level security, and fast support, so your firm stays productive year-round.

Competitors

20 years in business

Less experienced

97% CSAT score

85% or less

97% client retention rate

90% or less

Live Technical support

Non-technical call center

80% 1st call resolution

70% or less

Specialized

Generalists

Protect your firm’s data, maximize uptime, and eliminate IT headaches

See what our clients are saying

Is my accounting firm really at risk of a cyberattack?

Accounting firms are prime targets for cybercriminals. Financial data is valuable, and attacks are costly – 55% of small businesses have already fallen victim to a cyberattack, and 8% of all cyber claims involve professional service firms, including CPA firms and practices. ¹

Our 24/7 cybersecurity monitoring, endpoint protection, zero-trust security framework, and other robust security measures keep your firm protected, so your clients’ trust stays intact.

Uncover hidden vulnerabilities before they become security threats

IT solutions built for every accounting area

No matter your specialty area, we provide secure, compliant, and reliable IT solutions tailored to your firm’s specific IT needs.

Tax Preparation

Secure document management and compliance-driven IT solutions for personal and business tax filings.

Audit & Assurance

Protect confidential client data and maintain compliance for audit documentation and working papers.

Bookkeeping & Payroll

Maintain secure access to sensitive client records, transaction history, and financial documents.

Business Advisory

Reliable IT support for managing client consultations, financial forecasting, and strategic planning.

Forensic Accounting

Secure case management and data protection for fraud investigations and litigation support.

Retirement Planning

High-availability IT infrastructure to support client portfolios, retirement calculations, and tax planning.

Estate & Trust

Protect confidential communications and client files while supporting secure collaboration.

Nonprofit & Government

IT solutions designed for firms handling specialized compliance, grant management, and regulatory filings.

Meet the Diamond IT team

Behind every fast response and smart solution is a real person who understands your business. Our team combines technical know-how with industry experience to support your firm with care and clarity. We don’t hide behind tickets—we work alongside you.

Matt Mayo

CEO

Jon Fitrzyk

VP of Managed Services

Garret Ullal

Director of Platform Engineering & Strategic Automation

Cody Cooper

Strategic Services Manager

Serving clients nationwide

We work with clients across the United States, providing expert services from coast to coast. Our offices are strategically located to support businesses in the West, Midwest, and Eastern United States.

West Coast Branch

Service area: Bakersfield, Encino, Tulare, Los Angeles

Midwest & Eastern Branch

Service area: Indianapolis