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January 6, 2026 •HoganTaylor
TULSA — HoganTaylor LLP, one of the largest public accounting and business advisory firms in the region, has expanded its footprint in Louisiana through a merger with Hawthorn, Waymouth & Carroll LLP (HWC), a long-established firm based in Baton Rouge, La., that provided audit, tax and accounting services. The merger took effect on January 1, 2026, when HWC began doing business as HoganTaylor.
HWC has served the Baton Rouge business community for more than 70 years, advising individuals and organizations across Louisiana. HoganTaylor entered the Baton Rouge market in 2023 with Louisiana professionals that brought more than 50 years of combined experience serving Louisiana clients at Top 100 firms.
“The Baton Rouge market aligns well with who we are as a firm, and the city’s culture reflects the communities where we have been successful,” said Todd Wisdom, growth partner at HoganTaylor. “Clients appreciate local relationships backed by the resources of an independent regional firm. HWC’s long-standing presence, combined with our broader platform, makes this a strong match for both firms and for the Baton Rouge community.”
Through the merger, HoganTaylor has added two assurance partners, Brittany Thames and Kevin Rodriguez, along with 10 additional professionals, bringing its Louisiana team to 16. The combined office is operating from HWC’s former location on United Plaza Boulevard.
“Building this firm alongside our team and clients has been one of the great privileges of my career,” said Louis C. McKnight III, Managing Partner of HWC. “As HWC joins HoganTaylor, I know we are placing that legacy into hands that share our values, our commitment to excellence and our belief in doing what's right for the people we serve.”
HoganTaylor ranks No. 77 nationally among accounting firms according to INSIDE Public Accounting. The firm has offices in Tulsa and Oklahoma City, Okla.; Little Rock and Fayetteville, Ark.; and Baton Rouge, La.
“Clients in Baton Rouge will see continuity where it matters most,” said Tabatha Broussard, managing partner of HoganTaylor’s Baton Rouge office. “They’ll keep working with the people they know and trust, but with the backing of a firm that understands their market and offers broader resources to support their goals.”
As part of a celebration marking the integration of its Baton Rouge team, HoganTaylor presented a $5,000 grant from the HoganTaylor Foundation to the Dream Day Foundation on January 5.
“HWC has supported our programs for many years and I'm really excited to have the opportunity to grow with HoganTaylor,” said Tiffany Mansur Graves, Executive Director of Dream Day Foundation. “It's great to hear that HoganTaylor has a mission that supports the communities they serve and even better to see that it’s already turning into real support for Baton Rouge.”
HoganTaylor is one of the largest public accounting and business advisory firms in Oklahoma and Arkansas, with a growing presence in Louisiana. It is also a top 100 firm in the U.S. With more than 400 employees, the firm provides tax, assurance, risk, business advisory, accounting, talent, technology, and wealth services, along with many specialty and industry-focused offerings. HoganTaylor is an independent member of PrimeGlobal, one of the five largest associations of independent accounting firms in the world. Learn more at hogantaylor.com.
Based in Baton Rouge, La., Hawthorn, Waymouth & Carroll LLP is a full-service public accounting firm organized in 1954. Services include financial accounting, tax planning and compliance, audits, reviews and compilations, estate planning and business consulting and planning. The firm is located at 8545 United Plaza Blvd., Suite 200, Baton Rouge, LA 70809. Learn more at www.hwc-cpa.com.