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Andrew Walker

Audit Principal

  • CPA, MBA
  • Construction Practice Team

Andrew brings over a decade of expertise in managing complex audit and assurance engagements, with a specialized focus on the construction industry. As a Principal in the audit department, he is dedicated to delivering a seamless and value-driven audit experience tailored to each client's unique needs. Andrew's approach centers on strengthening clients' financial foundations by improving bonding capacity, enhancing access to capital, and increasing profitability. By transforming financial reporting into a strategic tool, he helps contractors achieve sustainable growth and long-term stability.

With deep industry knowledge and a commitment to best practices, Andrew provides comprehensive assurance services—including internal controls, consulting, business advisory, and accounting—that align with management's goals. He collaborates closely with clients to implement robust reporting practices grounded in a strong control environment, enabling them to build resilient businesses capable of navigating both challenges and opportunities.

Andrew's specialized services address the critical components contractors need to succeed: accurate financial reporting, precise job estimates, sound quality control, and adequate banking and bonding limits. His combined experience in both private and public accounting adds significant value, ensuring that all facets of a client's operations are aligned for optimal financial success and growth.

Andrew's approach is hands-on and relationship-driven. Clients rely on his clear communication, timely delivery, and steadfast commitment to meeting every deadline and agreed-upon fee. He prioritizes accessibility, responding to inquiries within 24 hours, and works collaboratively with bankers, bonding agents, and other advisors to ensure all goals are aligned. Andrew strives to make every engagement seamless, proactive, and focused on his clients' long-term success.

Clients regard Andrew as a true strategic partner who understands their business as deeply as their numbers. He brings extensive construction industry knowledge, practical insights, and a proactive mindset that empowers clients to make informed decisions and stay ahead of challenges. His investment in their success extends beyond the audit period, providing ongoing support throughout the year.

Andrew finds the most rewarding aspect of his work to be helping clients achieve their long-term objectives. Whether reaching target profit margins, acquiring key assets, building strong cash reserves, or successfully transitioning or selling their business, Andrew finds fulfillment in knowing that his guidance and partnership have contributed meaningfully to their success.


About Andrew

  • Kennesaw State University, Bachelor of Business Administration, Accounting
  • Shanghai International Studies University
  • Mercer University Master of Accountancy
  • Mercer University Master of Business Administration

Professional Memberships & Community Involvement

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Workers pouring and leveling wet concrete on ground during road construction under sunlight.
Business professionals smiling and shaking hands in a modern office setting during a meeting.

Gross Collins has been a trusted partner for close to thirty years. The firm has been by our side as we faced the various challenges our competitive industry provides. The firm has been a vital part of the team which guided us to the successful company we are today.

Tracy Pierce
COO, Precision Concrete Construction Inc.

With international dealings, not all CPA firms are created equal. Frustrated with complicated and inaccurate advise by our previous CPA, we were referred to HLB Gross Collins. HLB has been there to get to know who we are and to help us grow along the way by making suggestions and referrals that work for our business. No question is too small or large, all receive respectful and timely replies. The personal, reliable and professional services that Iliana and HLB staff have provided has been beyond measure, in the more than 11 years since we made the change.

Marc Lacourly
Prime Industries Inc.