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Accounting Firm

Katz, Nannis + Solomon

Boston CPA firm advising early-stage technology, life science and venture-funded companies

Katz, Nannis + Solomon cover

About Katz, Nannis + Solomon

Companies that raise money from angel and venture investors need accountants who understand what investors will ask for, and this Boston firm of certified public accountants builds its practice around that. It says it specializes in early-stage, angel-funded and venture-funded technology, life science and entrepreneurial businesses, and its page title claims that more than ten thousand entrepreneurs have trusted its advice.

Audit, assurance and accounting

The firm's work starts with audit and assurance. It says it works with all types of corporate structure and offers a full range of services with the flexibility to meet unusual requirements. Its title line also lists attestation and mergers and acquisitions among its services, so the same practice that audits a young company's books can support it through a sale or acquisition.

Tax decisions and what follows from them

Tax is presented as a matter of consequences. The firm points out that tax laws change every year and that every financial decision has an outcome, and it offers advice meant to help clients choose the option that best optimizes their results. Its published articles show where its attention lies in Massachusetts: one explains why venture-backed companies should consider forming a Massachusetts securities corporation, because a C corporation operating in the state can face both a state income tax and a lesser-known tax on net worth.

Growth, KPIs and due diligence

Beyond compliance, the firm says it helps founders pick the key performance indicators that drive growth and profitability, and gives them the tools and expertise to manage and grow the business. It also writes on due diligence, warning that a successful process, whether for an exit or a financing round, depends on preparing well ahead of time.

Industries beyond technology

Sector pages cover life science and medical devices, and also real estate and family businesses, showing that the practice is wider than start-ups alone.

TrustList summary

Katz, Nannis + Solomon is a firm of certified public accountants working with young, growth-oriented companies. It concentrates on businesses backed by angel or venture investors.

Services

  • Audit and assurance: for companies of any corporate structure.
  • Tax planning and compliance: advice that keeps up with yearly changes in tax law.
  • Business advisory: help identifying the key performance measures that drive growth.
  • Due diligence support: preparing finances ahead of an exit or fundraising round.

Who it serves

The firm specialises in technology, life science and medical device companies, and also serves real estate and family businesses. Its published articles cover Massachusetts securities corporations and venture-backed company taxation.

Key facts

  • Based in: Boston, Massachusetts
  • Focus: early-stage and venture-funded companies
  • Publications: industry news and tax updates on its website

Summary written by TrustList from the business's own published information, Oct 2026.

Categories & features

Rankings

As of 2026-10-30. Organic ranks only; sponsored placements are never ranks.

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