Marc Theuerkauf - Founder & Internal Auditor for GRC

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Frankfurt am Main, Germany

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Experience

Jan 2016 - Present

10 years 8 months

Germany

Founder & Internal Auditor

Internal Audit Services

Full-service internal audit provider offering co-sourcing, outsourcing, external quality assessments (DIIR No. 3), sparring partner (CPE) and e-learnings
Governance, risk and compliance solutions
Experienced network of independent auditors and consultants (>20 years experience) and global audit service providers
Certifications: Certified Internal Auditor, Certified Control Self Assessor, recognized auditor for audit systems DIIR e.V.
Memberships: Deutsches Institut für Interne Revision e.V., CIA working group Rhein/Main, DIIR working group “Interne Revision im Mittelstand”
Services:
Setup and implementation of internal audit and taking over the audit function
Audit support, coaching junior auditors, sparring partner
External quality assessments according to DIIR Standard No. 3, support for self-assessment and QAIP
Consulting and training: further development and modernization, e-learnings
Internal control systems: setup and introduction of ICS, control self-assessments, support with control testing
Setup and development of internal audit functions: charter and manual, audit universe and risk assessment, processes and templates
Quality management: external quality assessments DIIR No. 3, self-assessments, consulting QSVP/QAIP
Process audits: procure-to-pay, order-to-cash, hire-to-retire, record-to-report
Department audits: HR and payroll, purchasing, sales and after sales, financial accounting, logistics and warehousing, facility management and maintenance
Equity investment audits: audit leadership, audit planning, execution and reporting, quality assurance and coordination of local projects
Internal control systems: setup of internal control system, process descriptions and flowcharts, control self-assessments, control tests (design and effectiveness)
Consulting: further development of audit processes (audit universe, risk assessment, follow-up, QSVP/QAIP), standard audit programs, knowledge management, introduction of audit management systems, special process investigations
Compliance audits: compliance management systems, anti-bribery and anti-corruption audits, forensic special investigations

Industry experience

See where this freelancer has spent most of their professional time.

Experienced in Professional Services.

Professional Services

Business area experience

See which departments and functions this freelancer has contributed to most.

Experienced in Audit.

Audit

Languages

German

Native

English

Advanced

French

Elementary

Russian

Elementary

Education

Diplom-Kaufmann · Business Administration

Certifications & licenses

Recognized Auditor for Audit Systems DIIR E.V.

DIIR E.V.

Certified Control Self Assessor

Statistics

Experience

Total positions 1

Experience in Professional Services 10.5 y

Avg length 10 y 7 m

Longest experience 10 y 7 m

Global experience

Countries worked in 1 (Germany)

Primary country Germany

Expertise

Recent roles Founder & Internal Auditor

Main industries Professional Services

Main business areas Audit

Qualifications

Certifications earned 3

Profile

Member since

July 2025

Last update

July 2026

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Frequently asked questions

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Marc is based in Frankfurt am Main, Germany.

Marc speaks the following languages: German (Native), English (Advanced), French (Elementary), Russian (Elementary).

Marc has at least 11 years of experience. During this time, Marc has worked in at least 1 role and for 1 company. The average length of individual experience is 11 years and 7 months. Note that Marc may not have shared all experience and actually has more experience.

Based on recent experience, Marc would be well-suited for roles such as: Founder & Internal Auditor.

Marc's most recent position is Founder & Internal Auditor at Internal Audit Services.

In recent years, Marc has worked for Internal Audit Services.

Marc is most experienced in industries like Professional Services.

Marc is most experienced in business areas like Audit.

Marc has recently worked in industries like Professional Services.

Marc has recently worked in business areas like Audit.

Marc attended education in Business Administration.

Marc has 3 certificates. These include: Recognized Auditor for Audit Systems DIIR E.V., Certified Control Self Assessor, and Certified Internal Auditor.

The availability of Marc needs to be confirmed.

Daily rate distribution

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<€640 €800-960 €960-1120 €1280+

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Daily rate avg. 851 €

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Median rate 880 €

The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.

Calculated based on our freelancers’ daily rates as of 27 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.