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Outsourced Accounting Services

A stronger finance function. Better visibility. More confident decisions. 

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More Than Bookkeeping

Gross Mendelsohn’s outsourced accounting services help growing businesses and nonprofits strengthen their finance function with the right mix of accounting support, controller oversight, reporting discipline and strategic financial guidance. 

We do more than maintain the books. We help organizations improve financial visibility, strengthen internal processes, reduce risk and make better business decisions with timely, reliable information. 
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A Modern Outsourced Accounting Partner

Finance leaders and executive teams need more than transaction processing. They need timely financials, a cleaner close process, stronger reporting, better visibility into performance and guidance they can trust. 

Our outsourced accounting services are designed to function as an extension of your team. We combine day-to-day accounting support with higher-level financial oversight and advisory insight, so your organization has the structure, discipline and information it needs to operate with confidence. 

Whether you need help stabilizing the fundamentals or building a more strategic finance function, we provide practical support that grows with your organization.

What Our Outsourced Accounting Services Include

Our team supports organizations across the full finance function, from core accounting operations to more strategic planning and oversight.

Outsourced Accounting & Monthly Close Support

We manage or support the day-to-day accounting activities that keep your organization running, including transaction processing, account reconciliations, monthly close and financial statement preparation. Our goal is to create an accurate, timely and repeatable close process that gives leadership confidence in the numbers.

Controller Support & Financial Reporting

 We provide experienced oversight to help strengthen controls, improve reporting quality and support better financial management. This can include board reporting, management reporting, budgeting support, audit readiness and the development of reporting packages that help leadership and stakeholders understand performance more clearly.

Strategic Finance & CFO Advisory

For organizations that need more forward-looking support, we provide strategic finance guidance focused on forecasting, cash flow planning, KPI development, scenario analysis and financial decision support. We help leaders move beyond historical reporting and use financial information to plan, respond and grow.

Technology, Systems & Process Improvement

An effective finance function depends on more than people alone. We help clients improve workflows, strengthen processes and make better use of accounting technology. From system optimization to automation and reporting tools, we help build a finance environment that is more efficient, more scalable and easier to manage.

Who We Serve

 
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Private Businesses

For growing private businesses, accounting should do more than record the past. It should provide visibility into the health of the business and support better decisions about cash flow, profitability, staffing, investment and growth. 

We help business leaders build a stronger financial foundation through reliable reporting, improved processes, better forecasting and ongoing access to experienced financial professionals who understand what growth requires. 

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Nonprofit Organizations

Nonprofit leaders face increasing pressure to deliver financial transparency, manage restricted funding properly, satisfy grant and compliance requirements, and provide meaningful reporting to boards and stakeholders. We help nonprofits build a finance function that supports accountability, mission execution and better decision-making. 
 
From day-to-day accounting support to board-ready reporting and financial oversight, we help nonprofit organizations create stronger financial infrastructure and greater confidence in the numbers.

Learn More About Our Nonprofit Services

Why Organizations Choose Gross Mendelsohn

Many firms offer bookkeeping. Some provide occasional consulting. Our model is different. 

We build ongoing relationships that combine dependable accounting execution with financial oversight and strategic guidance. Clients turn to us not just to keep the books current, but to help create a more effective finance function over time. 

Our Outsourced Accounting Services are: 

Consistent. Scalable. Technology-enabled. Advisory-focused.

That means you gain a partner who can help improve reporting discipline, support better planning and create a finance function that keeps pace with the needs of your organization.

 

Outsourced Accounting Services Leadership

Rob Roudik

Partner, Outsourced Accounting Services Group Director

Rob Roudik, Gross Mendelsohn’s outsourced accounting services practice leader, brings deep operational experience and practical insight to complex finance environments. Supported by a team of talented professionals, Rob delivers consistent execution, thoughtful guidance and a finance function built to support change and growth — and confident decision-making.

Why Outsourced Accounting Services Matter Today

Leaders today need faster answers, cleaner reporting, stronger controls and better visibility into what is happening inside the organization. They cannot afford a finance function that is reactive, inconsistent or limited to basic compliance. 

Our outsourced accounting services help organizations: 

Improve the accuracy and timeliness of monthly financial reporting

Gain clearer visibility into cash flow, key metrics and financial performance

Support better decisions with forecasting and strategic financial insight

Improve efficiency through technology, process design and automation

Reduce risk with stronger oversight, better controls and more reliable reporting

Built Around The Right Technology

A modern finance function requires the right systems, workflows and reporting tools.

We work with leading accounting and finance technologies, including platforms such as QuickBooks, Sage Intacct, BILL and other best-in-class tools, to help clients create a more efficient and scalable finance environment. We focus on practical solutions that improve visibility, simplify workflows and support the needs of leadership.

Intuit QuickBooks
Sage Intacct
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Bill

 

The Value Of A Strategic Finance Partner

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Building an internal accounting and finance team with the right depth can be costly, time-consuming and difficult to scale. Outsourced accounting services give organizations access to experienced professionals, stronger reporting discipline and broader financial capability without the burden of building everything in-house.

With Gross Mendelsohn, clients gain more than monthly financial statements. They gain a trusted partner who helps improve the finance function, support leadership decisions and position the organization for long-term success.

What Are Our Clients Saying?

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"I am impressed by their ability to provide insightful guidance and strategic advice that directly contributes to the growth and success of my business.”

Bryan Zuber, CEO
Stratosphere Social
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Additional Resources

Why Nonprofit Finance Teams Are Under Pressure & What to Do About It

Is your nonprofit finance team falling behind? Learn the warning signs and how outsourced accounting can stabilize operations.

7 Signs Your Nonprofit Has Outgrown Its Current Finance Setup

Discover seven key signs your accounting systems, processes and reporting may need to evolve — even when the books appear to be in order. 

The Biggest IT Mistakes We’re Seeing in 2026 — And How to Avoid Them

Avoid costly IT mistakes in 2026. Learn how DIY fixes, AI misuse and security shortcuts are putting businesses at risk — and what to do instead.

Ready to Strengthen Your Finance Function?

Whether you need dependable day-to-day accounting support, stronger financial oversight or more strategic finance guidance, we can help. Let’s talk about where your finance function stands today, where it needs to go and how our outsourced accounting services can help you get there.