Insights

Boutique tax Small practice focus signals a strong need for personalized tax and bookkeeping services for sole proprietors and micro businesses seeking expert but cost-conscious support.

Owner-led advantage Jann Kostecke’s hands-on approach and deep tax knowledge offer a compelling selling point for clients who want direct access to a principal while maintaining flexibility and personalized service.

Tech-enabled services Existing tech stack including AWS, WordPress, Mapbox, and analytics tools suggests potential to upsell modern digital filing, secure data sharing, client portals, and scalable online tax preparation workflows.

Growth runway Revenue under one million and a sole practitioner setup indicate opportunity to target small, growing businesses and startups needing affordable, scalable tax and accounting support as they expand.

Competitive positioning Positioning against large firms by emphasizing personalized service, accessibility, and mapped business planning capabilities can attract small businesses seeking trusted advisor relationships without the overhead.

Similar companies to Kostecke CPA LLC

Kostecke CPA LLC Tech Stack

Kostecke CPA LLC uses 8 technology products and services including Snowplow, Amazon Web Services, Duda, and more. Explore Kostecke CPA LLC's tech stack below.

Kostecke CPA LLC's Email Address Formats

Kostecke CPA LLC uses at least 2 email formats:
Kostecke CPA LLC Email FormatsExamplePercentage
First@kosteckecpa.comJohn@kosteckecpa.com
50%
First.Last@kosteckecpa.comJohn.Doe@kosteckecpa.com
50%

Frequently Asked Questions

What is Kostecke CPA LLC's phone number?

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You can contact Kostecke CPA LLC'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 Kostecke CPA LLC's official website and social media links?

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Kostecke CPA LLC's official website is kosteckecpa.com and has social profiles on LinkedIn.

How much revenue does Kostecke CPA LLC generate?

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As of September 2026, Kostecke CPA LLC's annual revenue is estimated to be <$1M.

What is Kostecke CPA LLC's SIC code and NAICS code?

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Kostecke CPA LLC'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 Kostecke CPA LLC have currently?

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As of September 2026, Kostecke CPA LLC has approximately 1 employees across 1 continents, including North America. Key team members include Principal: N. B. Explore Kostecke CPA LLC's employee directory with LeadIQ.

What industry does Kostecke CPA LLC belong to?

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Kostecke CPA LLC operates in the Accounting industry.

What technology does Kostecke CPA LLC use?

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Kostecke CPA LLC's tech stack includes Snowplow, Amazon Web Services, Duda, WordPress, MySQL, Mapbox GL JS, PHP and Piwik.

What is Kostecke CPA LLC's email format?

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Kostecke CPA LLC's email format typically follows the pattern of First@kosteckecpa.com. Find more Kostecke CPA LLC email formats with LeadIQ.

When was Kostecke CPA LLC founded?

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Kostecke CPA LLC was founded in 2009.
Kostecke CPA LLC logo

Kostecke CPA LLC

AccountingWisconsin, United States0-1 Employees

Kostecke CPA LLC is a sole practitioner accounting firm based in Appleton, Wisconsin, offering tax preparation and related small-business accounting services. Led by Jann Kostecke, the practice draws on a background that combines public accounting experience with roles in private industry, including time at Arthur Andersen & Co and Kimberly-Clark. 

Her experience across manufacturing, distribution, sales, marketing, research, and accounting services in domestic and foreign locations informs a client-focused approach that emphasizes personal service. The firm targets small businesses and individuals seeking help with tax and accounting needs, providing guidance as tax codes and regulations evolve. As a locally focused, independent CPA resource, the practice offers direct access to its sole practitioner for clients.

Section iconCompany Overview

Phone number
SIC Code
8721 - Accounting, Auditing, and Bookkeeping Services
NAICS Code
5412 - Accounting, Tax Preparation, Bookkeeping, and Payroll Services
Founded
2009
Employees
0-1

Section iconFunding & Financials

  • <$1M

    Kostecke CPA LLC's revenue is estimated to be in the range of <$1M

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