AI Assistants Favored Niche Accounting Firms

Research shows AI models disproportionately recommend a small percentage of accounting firms to potential clients.

Updated on Oct. 7, 2026 in Professional Services

Bold flat-color editorial illustration showing a circular arrangement of metallic pillars with one distinct taller pillar, representing algorithmic selection. — New research shows that AI assistants are funneling business recommendations to a select few accounting firms, often prioritizing digital visibility over firm size. AI Illustration. Upload story photo >

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Do you trust AI assistants to provide unbiased recommendations for local professional services?

New studies have found that AI assistants frequently consolidate recommendations toward a small group of accounting firms. Analysts observed that a narrow set of businesses secured the vast majority of AI-generated suggestions.

Why it matters

The findings suggest that visibility within AI tools depends heavily on website optimization rather than actual firm size or historical audit volume. Smaller, less busy firms appear to gain disproportionate benefits from digital updates that AI models prioritize.

In a study of 3,480 queries, 25 accounting firms captured 87.2% of all recommendations while the top 10 firms accounted for 61.3% of results. Conversely, six smaller firms received 184 recommendations despite performing only 30 of 75 audits in a regional test.

The players

Expert Press

This research entity conducted a comprehensive study across the United States to analyze how AI tools suggest accounting services.

AIWorthy

This firm performed localized testing in North Carolina to determine how audit volume correlates with AI-generated recommendations.

The details

AI models rely heavily on firm websites, industry directories, and LinkedIn pages to determine which service providers to suggest. Ironically, the largest firms with the most audit clients often failed to receive recommendations because they did not clearly list their operating locations online.

August 2026: AIWorthy conducted 250 tests to evaluate recommendation patterns.
September 2026: The research team performed an additional 250 AI tests.
October 7, 2026: Accounting Today released the findings regarding AI bias.

Market Landscape

This trend highlights the ongoing digital arms race where professional service firms must optimize for AI visibility to maintain market share. Firms failing to adapt their online presence face a significant disadvantage as AI-driven search becomes a primary client acquisition channel.

Consumers relying on AI assistants for professional help may receive a skewed selection of firms that prioritize SEO over experience. Users should verify credentials independently rather than trusting the first suggestions provided by AI platforms.

The takeaway

Accounting firms must ensure their websites clearly state operating locations and service details to remain visible to AI search tools. Relying on past reputation is no longer enough to compete with smaller firms that effectively optimize their digital footprint.