Insights

Growth through integration Leverage the recent Blue J Legal AI integration to position Barnes Dennig as a tech-forward firm that enhances tax research efficiency for mid-market clients; offer scalable AI-assisted tax advisory and compliance services to expand client outcomes.

Strategic acquisitions Note the historical mergers and acquisitions including Thorn Lewis + Duncan and Ducks in a Row; identify potential cross-sell opportunities with clients of acquired firms and target mid-market businesses seeking consolidated accounting, tax, and advisory capabilities.

Industry focus Firm is organized into industry-focused teams (Automobile Dealerships, Construction, Healthcare, Manufacturing, Not-for-Profit, Real Estate, Wholesale/Distribution); tailor service bundles and vertical marketing to attract clients in those sectors with specialized assurance and tax planning.

Awards and reputation Leverage the award-winning reputation for innovation and client satisfaction to approach growth-focused middle-market and closely-held businesses seeking trusted advisors, emphasizing reliability, responsiveness, and proven multi-discipline expertise.

Technology stack Capitalize on a modern tech stack (AWS, Marketo, Google/Microsoft advertising, Calendly, WordPress, Mailgun, Google Ads) to run targeted demand generation, automate outreach, and provide scalable client onboarding for expansion in regional markets.

Similar companies to Thorn Lewis + Duncan Inc.

Thorn Lewis + Duncan Inc. Tech Stack

Thorn Lewis + Duncan Inc. uses 8 technology products and services including Google Ads, Microsoft Advertising, Calendly, and more. Explore Thorn Lewis + Duncan Inc.'s tech stack below.

Media & News

Thorn Lewis + Duncan Inc.'s Email Address Formats

Thorn Lewis + Duncan Inc. uses at least 5 email formats:
Thorn Lewis + Duncan Inc. Email FormatsExamplePercentage
FLast@thorncpa.comJDoe@thorncpa.com
89%
First@thorncpa.comJohn@thorncpa.com
11%
FLast@barnesdennig.comJDoe@barnesdennig.com
93%
Last@barnesdennig.comDoe@barnesdennig.com
6%
First@barnesdennig.comJohn@barnesdennig.com
1%

Frequently Asked Questions

What is Thorn Lewis + Duncan Inc.'s phone number?

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You can contact Thorn Lewis + Duncan Inc.'s main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Thorn Lewis + Duncan Inc.'s official website and social media links?

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Thorn Lewis + Duncan Inc.'s official website is barnesdennig.com and has social profiles on LinkedIn.

How much revenue does Thorn Lewis + Duncan Inc. generate?

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As of September 2026, Thorn Lewis + Duncan Inc.'s annual revenue is estimated to be $1M - $10M.

What is Thorn Lewis + Duncan Inc.'s SIC code and NAICS code?

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Thorn Lewis + Duncan Inc.'s SIC code is 8721 - Accounting, Auditing, and Bookkeeping Services and NAICS code is 5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services.

How many employees does Thorn Lewis + Duncan Inc. have currently?

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As of September 2026, Thorn Lewis + Duncan Inc. has approximately 7 employees across 2 continents, including North America and Europe. Key team members include Senior Partner: J. T., Senior Accountant: G. H. and Senior Accountant: C. B. Explore Thorn Lewis + Duncan Inc.'s employee directory with LeadIQ.

What industry does Thorn Lewis + Duncan Inc. belong to?

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Thorn Lewis + Duncan Inc. operates in the Accounting industry.

What technology does Thorn Lewis + Duncan Inc. use?

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Thorn Lewis + Duncan Inc.'s tech stack includes Google Ads, Microsoft Advertising, Calendly, Amazon Web Services, WordPress, Mailgun, Microsoft 365 and Marketo.

What is Thorn Lewis + Duncan Inc.'s email format?

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Thorn Lewis + Duncan Inc.'s email format typically follows the pattern of FLast@thorncpa.com. Find more Thorn Lewis + Duncan Inc. email formats with LeadIQ.

When was Thorn Lewis + Duncan Inc. founded?

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Thorn Lewis + Duncan Inc. was founded in 1965.
Thorn Lewis + Duncan Inc. logo

Thorn Lewis + Duncan Inc.

AccountingOhio, United States2-10 Employees

Thorn Lewis + Duncan Inc. operates in the accounting sector, providing a broad range of services including financial reporting, financial analysis, domestic and international tax planning, pension and retirement planning, and various business advisory offerings. The firm serves middle-market and closely-held businesses, leveraging specialized expertise in assurance, internal controls, international tax, valuation, investigative accounting, and profit improvement to help client owners gain insight and strategic guidance. Based in Dayton, Ohio, the company emphasizes industry-focused teams to address sector-specific needs across automobile dealerships, construction, healthcare, manufacturing, not-for-profit, real estate, and wholesale/distribution, reflecting its aim to support a diverse client base. The firm has a long-standing presence in the region, with a history spanning more than five decades, and has integrated with Barnes Dennig, expanding its footprint within the broader accounting landscape. A recent development includes Barnes Dennig’s growth moves in 2023, signaling ongoing expansion and leadership changes within the practice.

Section iconCompany Overview

Phone number
SIC Code
8721 - Accounting, Auditing, and Bookkeeping Services
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
1965
Employees
2-10

Section iconFunding & Financials

  • $1M - $10M

    Thorn Lewis + Duncan Inc.'s revenue is estimated to be in the range of $1M - $10M

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