Hartmut Riester - Business Management - Media Advisory

Q: Where is Hartmut based?

Hartmut is based in Ingelheim am Rhein, Germany .

Q: What languages does Hartmut speak?

Hartmut speaks the following languages: German (Native), English (Advanced), Turkish (Intermediate) .

Q: How many years of experience does Hartmut have?

Hartmut has at least 32 years of experience. During this time, Hartmut has worked in at least 6 different roles and for 6 different companies . The average length of individual experience is 5 years and 4 months . Note that Hartmut may not have shared all experience and actually has more experience.

Q: What is Hartmut's latest experience?

Hartmut's most recent position is Executive Advisor (Freelance) at RC-MEDIACON .

Q: What companies has Hartmut worked for in recent years?

In recent years, Hartmut has worked for RC-MEDIACON and Dentsu .

Q: Which industries is Hartmut most experienced in?

Hartmut is most experienced in industries like Advertising , Media and Entertainment and Publishing .

Q: Which business areas is Hartmut most experienced in?

Hartmut is most experienced in business areas like Marketing , Strategy and Planning , and Business Intelligence . Hartmut also has some experience in Project Management .

Q: Which industries has Hartmut worked in recently?

Hartmut has recently worked in industries like Advertising , Media and Entertainment and Publishing .

Q: Which business areas has Hartmut worked in recently?

Hartmut has recently worked in business areas like Marketing , Strategy and Planning , and Business Intelligence .

Recommended expert

Ingelheim am Rhein, Germany

Experience

Apr 2022 - Present

3 years 11 months

Germany

Executive Advisor (Freelance)

RC-MEDIACON

Provide consultancy & interim management services in business management, business development, brand communications & media advisory, business transformation, M&A and post-merger integration
Executive advisor for sustainability & digital transformation: guide companies to measure and benchmark sustainability and digital maturity and provide prioritized roadmaps and recommendations to accelerate and execute transformation
Network partner at Eisold Mediateam GmbH, Frankfurt: advise advertising companies on marketing & media communications decisions
Business partner Germany at ID Comms, London & New York: ensure best media strategies, planning and pricing through data-driven evaluations and independent recommendations of advertisers’ media spendings

Apr 2008 - Mar 2022

14 years

İstanbul, Turkey

CEO Turkey (and CEO Romania & Bulgaria between 2011-2014)

Dentsu

Developed and established Dentsu TR as the number 2 communications agency group (recma) by growing the business organically across all relevant KPIs with a workforce of 250 by March 2022
Launched and established group brands Vizeum, iProspect, Isobar, Amnet and Posterscope from scratch
Led the acquisition of a local top-tier creative agency and managed post-merger integration into Dentsu Turkey
Built Dentsu group in Bulgaria: tripled business in three years, led and completed JV negotiations with a local communications group, transforming a basic media agency into a consumer-focused and digital-led organization with 70 staff
Transformed Dentsu Romania from a poor-performing business into a strong competitive, service-oriented market player delivering bought, owned & earned media ecosystem solutions with 85 local experts
Led the acquisition of a top 3 digital agency

Mar 2006 - Mar 2008

2 years 1 month

İstanbul, Turkey

Managing Director

Carat Turkey

Built business organically across various sectors and service offers
Delivered post-merger integration of an acquired media agency successfully

Nov 2000 - Mar 2006

5 years 5 months

Frankfurt, Germany

Media Director & Member of the Management Board

Vizeum Germany

Held full strategic planning and P&L responsibility for several key accounts (FMCG, consumer electronics and banking sector)

Oct 1998 - Oct 2000

2 years 1 month

Frankfurt, Germany

Unit Director

Leo Burnett / Starcom

Held full strategic planning and P&L responsibility for Fiat Group (including Alfa Romeo and Lancia)
Generated continuously high client satisfaction scores

May 1994 - Sep 1998

4 years 5 months

Wiesbaden, Germany

Planner

HMS-Carat

Media planner and buyer for a wide range of clients across various sectors.

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Advertising (32 years) and Media and Entertainment (10 years).

Advertising

Media and Entertainment

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Marketing (29.5 years), Strategy (27.5 years), Business Intelligence (4 years), and Project Management (2 years).

Marketing

Strategy

Business Intelligence

Project Management

Summary

16 years of experience in business management at C-Level and more than 25 years in the media and advertising industry working in local, international and multi-cultural environments. Hands on senior business executive with strong management and leadership skills with a proven track record in Business Management, Business Transformation, Go-to Market Strategies, international Project Management and Business Development. Result-proven and growth-oriented leader with repeated success in multiple markets, expanding international footprint, driving vision and achieving critical strategic goals.

Skills

Leadership
Teambuilding, Attracting And Retaining Talents, Staff Motivation
Business Development
M&a And Post Merger Integration
Marketing Communications & Media
Business Transformation

Languages

German

Native

English

Advanced

Turkish

Intermediate

Education

Oct 1989 - Jun 1993

University of Applied Science

Diploma, Business Administration, Marketing & Sales · Business Administration, Marketing & Sales · Wiesbaden, Germany

Oct 1986 - Jun 1988

Boehringer Ingelheim

Professional degree: Industrial Clerk · Industrial Clerk · Ingelheim am Rhein, Germany

Sebastian Münster Gymnasium

Abitur (University Entrance Diploma) · High School Diploma · Ingelheim am Rhein, Germany

Certifications & licenses

Certified Partner Digitopia.co & CXO Transform

Digital Maturity Index Practitioner

Sustainability Maturity Index Practitioner

Profile

Created

December 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Hartmut based?

Hartmut is based in Ingelheim am Rhein, Germany.

What languages does Hartmut speak?

Hartmut speaks the following languages: German (Native), English (Advanced), Turkish (Intermediate).

How many years of experience does Hartmut have?

Hartmut has at least 32 years of experience. During this time, Hartmut has worked in at least 6 different roles and for 6 different companies. The average length of individual experience is 5 years and 4 months. Note that Hartmut may not have shared all experience and actually has more experience.

What roles would Hartmut be best suited for?

Based on recent experience, Hartmut would be well-suited for roles such as: Executive Advisor (Freelance), CEO Turkey (and CEO Romania & Bulgaria between 2011-2014), Managing Director.

What is Hartmut's latest experience?

Hartmut's most recent position is Executive Advisor (Freelance) at RC-MEDIACON.

What companies has Hartmut worked for in recent years?

In recent years, Hartmut has worked for RC-MEDIACON and Dentsu.

Which industries is Hartmut most experienced in?

Hartmut is most experienced in industries like Advertising, Media and Entertainment and Publishing.

Which business areas is Hartmut most experienced in?

Hartmut is most experienced in business areas like Marketing, Strategy and Planning, and Business Intelligence. Hartmut also has some experience in Project Management.

Which industries has Hartmut worked in recently?

Hartmut has recently worked in industries like Advertising, Media and Entertainment and Publishing.

Which business areas has Hartmut worked in recently?

Hartmut has recently worked in business areas like Marketing, Strategy and Planning, and Business Intelligence.

What is Hartmut's education?

Hartmut holds a Bachelor in Business Administration, Marketing & Sales from University of Applied Science and a Bachelor in Industrial Clerk from Boehringer Ingelheim.

Does Hartmut have any certificates?

Hartmut has 3 certificates. These include: Certified Partner Digitopia.co & CXO Transform, Digital Maturity Index Practitioner, and Sustainability Maturity Index Practitioner.

What is the availability of Hartmut?

Hartmut is immediately available for suitable projects.

What is the rate of Hartmut?

Hartmut's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.