Assurance & Advisory Services

Trusted Oversight. Actionable Insight.

At Atherton & Associates, we help businesses, nonprofits, and governments protect their integrity and propel their growth. Whether you need a formal audit or strategic financial guidance, our team delivers assurance and advisory services grounded in technical excellence, industry expertise, and real-world practicality.

Assurance & Compliance

Financial Accuracy that Inspires Confidence

We deliver three levels of financial statement services tailored to your regulatory needs, stakeholder expectations, and internal governance:

Audited Financial Statements

Reviewed Financial Statements

Compiled Financial Statements

Reviewed Financial Statements

A reviewed financial statement provides more assurance than a compilation but less than an audit.  A reviewed financial statement engagement consists primarily of analytical procedures

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Compiled Financial Statements

A compiled financial statement is prepared using our knowledge of accounting principles and understanding of your business.  We create financial statements that are the representation

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Industry-Specific Assurance Expertise

Healthcare: Medicare audits, cost report support, HUD & nonprofit filings
Construction & Real Estate:Bonding readiness, job costing validation, percentage-of-completion
Agribusiness: Seasonality risk modeling, grower payments, USDA & co-op audit prep
Nonprofits: Single Audits, SEFA guidance, grant and donor accountability

Private Business: Audit readiness, clean-up, GAAP transitions

Advisory Services

Strategic Financial Support Without Formal Audit

If you don’t need an opinion—but still want clarity, structure, or guidance—our advisory team works with you hands-on to solve challenges and seize opportunity.

Internal Control Design

A company’s processes can be one of the most crucial parts of a business’ plan. In accounting, there’s a process called “internal control” that analyzes

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Industry-Driven Advisory Solutions

Construction: WIP tracking systems, subcontractor controls

Healthcare: Revenue cycle process improvement

Agribusiness: Inventory control & cost accounting

Nonprofits: Board education, grant budgeting

Private Companies: Controller coaching, tech stack evaluation

Download our helpful resources

FAQ

Do I need an audit or a review?

Audits are typically required by lenders, investors, or regulators. Reviews are lighter touch and often used when moderate assurance suffices.

How do advisory services differ from assurance?

Advisory helps you improve financial processes and solve problems internally. Assurance evaluates your reporting independently for third parties.

How do I get ready for an audit?

Download our Audit Preparation Checklist, and we’ll guide you through documentation, scheduling, and fieldwork coordination.

Do nonprofits need Single Audits?

Yes, if you expend $750,000+ in federal funding. We specialize in these and can help with SEFA and OMB compliance.

Can you help clean up our books before an audit?

Absolutely. Our advisory team can do a financial statement clean-up before assurance begins.

Let’s Talk Strategy and Compliance

Whether you’re audit-bound or aiming to strengthen your financial function, our team is ready to help.