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Jannsen + Company, S.C. Employee Directory

AccountingWisconsin, United States11-50 Employees

Jannsen + Company, S.C. is a Wisconsin-based accounting and business advisory firm that provides CPA and accounting services alongside information technology consulting, human resources consulting, and payroll services. Founded in 1975, the firm emphasizes adding value through forward thinking, careful planning, and personal attention, aiming to support client success with a holistic approach to financial and operational needs. The company serves businesses seeking integrated accounting and advisory support, addressing core finance and HR processes to help clients elevate their operations. Located in Pewaukee, near Milwaukee, the practice operates with a professional team focused on delivering practical guidance and results for organizations across its service areas.

Find Jannsen + Company, S.C. employees' phone numbers or email addresses

Jannsen + Company, S.C. Global Highlights

Location
Employees

North America
16

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  • United States Of America
    16

Europe
4

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  • Italy
    2
  • United Kingdom Of Great Britain And Northern Ireland
    1
  • Ireland
    1

Jannsen + Company, S.C.'s Leadership

  • Stylized image of a person
    K. O.
    C&q
    Phone icon
    Mobile Phone
  • Stylized image of a person
    L. G.
    Certified Public Accountant
    Phone icon
    Mobile Phone

Jannsen + Company, S.C. Employee Metrics

100%
50%
0%
2026
2025
  • Accounting
  • Community & Social Services
  • Information Technology
  • Other

Contact profiles from Jannsen + Company, S.C.

Name
Title
Contact Info
Location
Last Update
  • Stylized image of a person
    K. O.
    C&q
    Phone icon
    Mobile Phone
    IrelandMunster
    Feb 22, 2024
  • Stylized image of a person
    L. G.
    Certified Public Accountant
    Phone icon
    Mobile Phone
    Oct 24, 2024

Frequently Asked Questions

What is Jannsen + Company, S.C. known for?

Minus sign iconPlus sign iconJannsen + Company, S.C. was founded in 1975 operates in the Accounting industry; you can contact the main corporate office by phone at
+1-262-696-****
. Explore Jannsen + Company, S.C.'s company overview page for more information.

What is Jannsen + Company, S.C.'s most common email format?

Minus sign iconPlus sign iconJannsen + Company, S.C. employees' email format typically follows the pattern of . Trying to find reliable and up-to-date employee contact data? Find more Jannsen + Company, S.C. email formats with LeadIQ.

How many employees does Jannsen + Company, S.C. have currently?

Minus sign iconPlus sign iconJannsen + Company, S.C. has approximately 21 employees as of August 2026. These team members are located across 2 continents, including North AmericaEurope.

Who are Jannsen + Company, S.C.'s key employees and leadership?

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As of August 2026, Jannsen + Company, S.C.'s key employees include:

  • C&q: K. O.
  • Certified Public Accountant: L. G.

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