4C - Key Persons


Alexandra Mistele

Job Titles:
  • Managing Consultant
  • Technical Managing Consultant

Anna Leddin

Job Titles:
  • Manager
  • Senior Partner

Claudia Bauer

Job Titles:
  • Head of Marketing & Business Development
Claudia Bauer has a degree in business administration with a focus on online marketing and is responsible for marketing and business development at the 4C GROUP. She has more than 10 years of professional experience in B2B marketing, brand building and brand management based on psychological and neurological insights.

Claudia Irsfeld

Job Titles:
  • Head of People Management & Development
Claudia Irsfeld has more than 10 years of professional experience in Human Resources and Professional Recruiting. She is as an authorized office responsible for human resources at 4C. In addition, she participates in selected client assignments and therefore has a sound understanding of every day consultant's life. She focuses on recruiting & onboarding as well as leadership, coaching & training.

Dorothee Deyhle

Job Titles:
  • Member of the Executive Board of CA Akademie AG
Dorothee Deyhle has been a member of the executive board of CA Akademie AG since 2016. CA Akademie AG was founded by her father in 1971 and specialises in business training seminars for companies - the market leader for in-service controlling training. Dorothee holds a degree in communication design and is responsible for marketing and branding at CA Akademie AG. Before joining the owner-managed company in a responsible position, she founded the current deyhle & löwe Werbeagentur GmbH in 1994, of which she is still the managing director. Dorothee is a mother of three children and lives for the design of "lifelong learning" in companies in all media forms and knows the challenges of owner-managed companies in transition and transformation.

Dr Michael Thiel

Job Titles:
  • Managing Director at Dr Kleeberg & Partner GmbH
Dr Michael Thiel is Managing Director at Dr Kleeberg & Partner GmbH. He studied law and earned his doctorate at the LMU Munich. Dr Michael H. Thiel acts as Trusted Advisor for entrepreneurs, entrepreneurial families, board members and managing directors, but also for high-net-worth individuals. Advising national and international clients on M&A transactions as well as on restructurings and transformations and specialising in these areas have long formed the basis of his successful work with all representatives of the business community. Michael has accompanied 4C GROUP AG and its partners in these focal areas since the foundation of 4C GROUP AG in 1997 in the role of Chairman of the Supervisory Board.

Florian Zemler

Job Titles:
  • Managing Consultant
  • Senior Consultant
  • Technical Managing Consultant

Gerrit Haare

Job Titles:
  • Manager

Heiko Mauterer

Job Titles:
  • Senior Partner
  • Partner Heiko Mauterer / Senior Partner Stephanie Baier
  • Senior Partner Heiko Mauterer / Senior Partner Stephanie Baier
  • Senior Partner Peter Keefer / Partner Heiko Mauterer

Krzysztof Glatzel

Job Titles:
  • Senior Consultant
  • Junior Consultant

Linyuan Shangguan

Job Titles:
  • Junior Consultant
  • Technical Junior Consultant

Manuel Iserloh

Job Titles:
  • Senior Partner
  • Senior Partner Heiko Mauterer / Senior Partner Stephanie Baier
  • Senior Partner Peter Keefer / Partner Heiko Mauterer
  • Senior Partner Peter Keefer / Partner Stephanie Baier

Peter Keefer

Job Titles:
  • Partner
  • Partner Heiko Mauterer / Senior Partner Stephanie Baier
  • Senior Partner Peter Keefer / Partner Heiko Mauterer
  • Senior Partner Peter Keefer / Partner Stephanie Baier

Stephanie Baier

Job Titles:
  • Manager
  • Senior Partner
  • Partner Heiko Mauterer / Senior Partner Stephanie Baier
  • Senior Partner Heiko Mauterer / Senior Partner Stephanie Baier
  • Senior Partner Peter Keefer / Partner Stephanie Baier

Tabitha Wruck

Job Titles:
  • Managing Consultant
  • Senior Consultant

Verena Haemmerle

Job Titles:
  • Manager

Winfried Kärtner

Job Titles:
  • Manager

Zarah Bruhn

Job Titles:
  • Supervisory Board
In 2016, Zarah Bruhn founded the social enterprise Social-Bee gGmbH, which focuses on promoting the labour market integration of refugees, as CEO from her master's degree in business administration at the universities of Mannheim and Munich. To this end, Social-Bee already supports more than 70 companies with a combination of non-profit employee leasing, support and integration measures to bring more refugees into permanent employment and overcome cultural hurdles. Zarah has received several awards for her social entrepreneurial activities - most recently the "Audi Generation Award 2021". As an expert on diversity, integration and female entrepreneurship, she advises the German government, among others, and appears at numerous conferences (Bits & Pretzels, TEDx). The magazine Capital selected Zarah as one of the "Top 40 under 40". Most recently, Social Bee was selected from 8,000 companies worldwide by Google.org and accepted into Google Communities Accelerator Programme. Zarah is passionate about diversity and will work with and for 4C to advance her passion.