5 Federal Contractor Cost Accounting Consultants Worth Knowing in the US

Jay Payne
Written by
Jay Payne
Last edited: Aug 25, 2026

Navigating the labyrinth of federal contracting rules can feel like a full-time job. These five consultancies specialize in making cost, pricing, and compliance work for you, not against you.

The High-Stakes World of Federal Contractor Compliance

Federal contractors operate under a microscope. The Defense Contract Audit Agency (DCAA), the Cost Accounting Standards (CAS), and the Federal Acquisition Regulation (FAR) impose strict rules on how you account for costs, structure indirect rates, and price proposals. A single misstep can trigger audits, penalties, or even loss of contracts. That's why specialized consultants are invaluable. They help you stay compliant, maximize cost recovery, and navigate complex regulations. Whether you're a small business or a top-tier contractor, having an expert in your corner is not a luxury—it's a necessity.

How We Evaluated These Firms

We assessed each firm based on its depth of expertise in federal cost accounting, the breadth of services offered, and its ability to serve contractors of different sizes. We also considered each firm's track record, industry reputation, and the clarity of its communication. What stood out for each firm was its unique approach to demystifying complex regulations and providing actionable guidance. Some excel in hands-on consulting, others in training and newsletters, and still others in comprehensive audit support. The goal is to help you find the right fit for your specific needs.

Here's a quick snapshot of the five firms we're highlighting, so you can see at a glance what each one brings to the table.

ProviderBest For
CohnReznickLarge contractors needing comprehensive business systems compliance
Home - Government Contract AssociatesContractors seeking expert consulting plus ongoing regulatory updates
Baker TillyMid-to-large contractors needing robust cost accounting support
Diener & AssociatesSmall to mid-sized contractors needing CAS compliance and outsourced accounting
Eubanks Accounting & AdvisoryContractors seeking ERP guidance and hands-on compliance support

The Five Firms: A Closer Look

#1 CohnReznick

Screenshot of CohnReznick website A screenshot of the CohnReznick website.

CohnReznick brings over 50 years of experience to government contracting, offering a full lifecycle approach from bidding to contract management. They provide deep expertise in all six DFARS business systems, including estimating, EVMS, and accounting systems. Their team helps you design and implement compliant systems, conduct mock gap assessments, and prepare for formal audits. They also excel in indirect rate composition, ensuring your pricing is defensible and competitive. If you're a large contractor dealing with complex, high-dollar contracts, CohnReznick's comprehensive advisory services are a strong match. Their proactive approach, highlighted by the annual GAUGE report, keeps you ahead of industry trends.

#2 Home - Government Contract Associates

Screenshot of Home - Government Contract Associates website A screenshot of the Home - Government Contract Associates website.

Government Contract Associates (GCA) has been a trusted name for over 30 years, specializing in cost, pricing, and contracting rules. They offer a wide range of services, from DCAA consulting and accounting system audits to FAR/CAS training and litigation support. What sets GCA apart is their dual focus on consulting and education—their GCA REPORT and GCA DIGEST newsletters have delivered timely updates on hot topics and new developments for over 20 years. Their team includes former DCAA auditors, contracting officers, and CFOs, giving you insider knowledge. Whether you need help with incurred cost proposals or preparing disclosure statements, GCA provides practical, hands-on guidance. They also maintain a global network of experts, making them a versatile partner for contractors of all sizes.

#3 Baker Tilly

Screenshot of Baker Tilly website A screenshot of the Baker Tilly website.

Baker Tilly is a major player in government contract cost accounting, helping you make sense of the government's complex rules. They focus on demystifying CAS and FAR requirements, ensuring your accounting practices withstand audit scrutiny. Their team works with you to apply these rules in a way that makes sense for your business, not just in theory. They offer a range of services, including indirect rate development, cost allocation, and compliance assessments. Baker Tilly's strength lies in their ability to translate regulatory jargon into actionable strategies. If you're looking for a firm with national reach and deep resources, Baker Tilly is a solid choice.

#4 Diener & Associates

Screenshot of Diener & Associates website A screenshot of the Diener & Associates website.

Diener & Associates is a Northern Virginia CPA firm that specializes in helping government contractors achieve and maintain CAS compliance. They offer a focused suite of services, including accounting system compliance, ICE model support, and DCAA/DCMA readiness. Their team of CPAs understands the nuances of the 19 Cost Accounting Standards and can help you implement them effectively. They also provide outsourced accounting services, making them a one-stop shop for smaller contractors. If you've been turned down for a contract due to compliance issues, Diener can help you get back on track. Their personalized approach and local presence make them a great partner for regional businesses.

#5 Eubanks Accounting & Advisory

Screenshot of Eubanks Accounting & Advisory website A screenshot of the Eubanks Accounting & Advisory website.

Eubanks Accounting & Advisory is dedicated to helping government contractors operate effectively and maximize cost recovery. They offer a comprehensive range of services, including DCAA audit response, CAS/FAR compliance, and preparation of annual incurred cost reports. Their team also provides rate justifications and buildup methods, ensuring your pricing is well-documented. What's unique is their focus on ERP readiness—they help you choose software that supports compliance and audit readiness. They serve a variety of industries, from technology to construction, and are active in industry associations like SECAF and AFCEA. If you're a contractor looking for a partner that understands both the financial and operational sides of compliance, Eubanks is worth considering.

How to Choose the Right Consultant for Your Contracting Business

Start by assessing your company's size and the complexity of your contracts. If you're a small contractor, you might benefit from a firm like Diener & Associates that offers outsourced accounting. For larger contractors with multiple business systems, CohnReznick's comprehensive approach could be a better fit. Consider your specific pain points—are you struggling with DCAA audits, indirect rate structures, or CAS compliance? Look for a firm with proven experience in that area. Also, think about whether you need ongoing education and updates, which GCA provides through its newsletters. Finally, evaluate the firm's communication style and whether they take the time to explain things clearly. The right consultant should feel like a partner, not just a vendor.

Streamlining Compliance with Automation

In today's digital age, automation can significantly ease the burden of federal contractor compliance. Start by implementing an ERP system that is GovCon-ready, as Eubanks emphasizes. Use software to track indirect rates, allocate costs, and generate incurred cost proposals automatically. Set up automated alerts for regulatory updates, similar to what GCA's newsletters provide, so you never miss a change. For audit readiness, use cloud-based document management to organize your policies and procedures. Finally, consider using automated tools for timekeeping and expense tracking to ensure accurate cost accounting. By automating routine tasks, you free up time to focus on strategic growth.

Your Next Step to Compliance Confidence

Choosing the right consultant is a critical decision that can impact your bottom line and your ability to win contracts. Each of these five firms brings something unique to the table, from GCA's educational focus to CohnReznick's full-service approach. Take the time to evaluate your needs and reach out to a few of them for initial consultations. Remember, the goal is not just to comply but to thrive in the federal marketplace. With the right partner, you can navigate the complexities with confidence and focus on what you do best—delivering on your contracts.

Jay Payne

About the Author

A veteran investigative journalist for 4 years, Jay Payne has a passion for uncovering market trends. When he isn't uncovering market trends, he's usually restoring motorcycles.