Insights

Small Business Tax A sole practitioner CPA serving small businesses and individuals presents a target for personalized tax preparation and planning services, ideal for cross-selling ongoing compliance, quarterly estimates, and year-end tax strategy.

Local Expertise Based in Appleton, Wisconsin with experience in domestic and foreign contexts through prior corporate roles, this profile can be leveraged to offer compliance, state-specific tax guidance, and regionally tailored accounting solutions to local SMBs expanding or operating across borders.

Niche Personalization The founder emphasizes hands-on service and puzzles-like tax codes, highlighting a value proposition for high-touch tax planning, bookkeeping for startups, and bespoke financial advisory targeted at owner-operator businesses.

Digital Presence Tech stack elements such as Mapbox, SEO tools, and web performance signals indicate potential for digital marketing services, client onboarding automation, and improved online lead capture to expand client reach.

Growth Readiness Current revenue range and one-person or small-team setup suggest opportunities for scalable services like fractional CFO, payroll, and tax remediation packages designed for growing small businesses seeking cost-effective expansion support.

Kostecke CPA LLC Tech Stack

Kostecke CPA LLC uses 8 technology products and services including Duda, jQuery, MobX, and more. Explore Kostecke CPA LLC's tech stack below.

  • Duda
    Content Management System
  • jQuery
    Javascript Libraries
  • MobX
    Javascript Libraries
  • Leaflet
    Maps
  • Priority Hints
    Performance
  • Yoast SEO
    Search Engines
  • Google Analytics
    Web Analytics
  • prettyPhoto
    Web Tools And Plugins

Kostecke CPA LLC's Email Address Formats

Kostecke CPA LLC uses at least 1 format(s):
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 August 2026, Kostecke CPA LLC's annual revenue is estimated to be <$1M.

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

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Kostecke CPA LLC's SIC code is 8721 - Accounting, Auditing, and Bookkeeping Services 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 August 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 DudajQueryMobXLeafletPriority HintsYoast SEOGoogle AnalyticsprettyPhoto.

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

Section iconFunding & Financials

  • <$1M

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

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