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Agnes De La HosserayeAD

Agnes De La Hosseraye

Marketing and B2B Communication Consulting

€800/day
1 project
Saint-Lunaire, FR
15+ years

Average response time: 1 hour

Freelancer profile translated to English.
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About Agnes

Freelance Marketing & Communication Consultant
20 years of experience serving B2B companies – from startups to Key Accounts – to transform their ambitions into concrete, effective, and sustainable strategies.

I design and implement Marketing & Communication strategies **that enhance my clients' visibility, brand awareness, and commercial performance**, while uniting teams around a shared vision.

My approach combines strategic consulting with operational support, with a **strong results orientation**.


  • Audit & Strategy:Marketing/communication diagnosis, market research, definition of action plans aligned with business objectives.
  • Communication & Content:Creation of communication and sales materials, editorial support, storytelling, and brand consistency.
  • Projects & Change:Cross-functional project management, change management, coordination of interdisciplinary teams.
  • Visibility & Engagement:Communication plan, press relations, event organization, network animation.

My added value:dual expertise in marketing and change management, allowing me to combine strategic vision, operational rigor, and agility.
Passionate about the impact of well-defined strategies, I am committed to designing tailor-made solutions that generate measurable and sustainable results.

What my clients appreciate:my ability to **quickly understand their challenges**, translate strategy into concrete actions, and manage projects with demanding standards, clarity, and enthusiasm.

My goal:to make marketing and communication truegrowth, engagement, and transformation leversfor organizations.
  • French

    Native or bilingual

  • English

    Fluent

Can work on-site
Saint-Lunaire (up to 50km), Rennes (up to 50km), Paris (up to 10km)

Experience

  • Freelance - Sesame Conseil
    Marketing and Communication Consultant
    CONSULTING AND AUDITS
    July 2016 - Today (9 years and 11 months)
    Saint-Malo, France
    For 9 years, I have been supporting startups, SMEs, and B2B Key Accounts in the design and implementation of their communication and marketing strategies.

    I have worked in various sectors: IT consulting firms, software publishing, M&A advisory, energy, recruitment, funeral services, and associations.

    Audit & Consulting:Marketing/communication diagnosis, market research, strategy audit.
    Strategy & Planning:Definition and deployment of global marketing strategies and communication plans adapted to target audiences.
    Operational Communication:Creation of materials, editorial support, press relations, community management.
    Change Management & Coordination:Cross-functional project management, team support, measurement, and optimization of actions.
    Event Management & Network Animation:Organization of professional events and partnership development.

    Aversatile expertisecombining strategic vision and operational execution, for concrete and sustainable results.
    Communication Strategy Marketing Strategy Content Writing Marketing Audit Event Organization
  • www.levoyagedesextraterrestres.com
    Sabbatical Year – Family Sailboat Trip Around the Atlantic
    TRAVEL AND TOURISM
    August 2017 - July 2018 (11 months)
    Fort-de-France, Martinique
    Family sailing trip around the Atlantic including 2 solidarity missions:

    - Conveying medical equipment to Casamance (Senegal)
    - Managing an educational blog used by volunteers from the association L'enfant @ L'hopital for their workshops.

    A project managed from start to finish, requiring organization, foresight, and budget management, in a changing and unpredictable environment. This experience strengthened my adaptability, decision-making in uncertain contexts, and long-term priority management. It also developed my teamwork, teaching, and resilience skills.
    Enterprising Determination Rigor and Organization Adaptability and Curiosity Sailing
  • CGI Business Consulting
    Senior Consultant IT Marketing & Change Management
    DIGITAL AND IT
    April 2014 - July 2016 (2 years and 3 months)
    Région de Paris, France
    Change Management mission on a strategic project for ENGIE's IT department.
    Management and supervision of a team of consultants responsible for defining and deploying the change management strategy: internal communication, user support, training, and coordination with business departments.
    Objective: to facilitate the adoption of new tools and processes within a complex, multi-site organization.
    Change Management Project Management Project Management and Coordination of Interdisciplinary Teams Content Marketing Design and Implementation of Operational Marketing Plans

Reviews

5.0

Out of 1 rating

P

Pauline

Aviv Group France

Reviewed on 3/24/2025

Agnès joined my Marketing team to help us structure our local (France) presence. She quickly took over and relieved me by effectively auditing the situation. In just a few days, she managed to establish the right processes and instances with our stakeholders while starting to deliver on operational tasks (marketing deliverables, communication plan, etc.). Efficient and high-quality work combined with a pleasant and human personality. I am delighted to have met her and to have had her by my side. I highly recommend her and hope to have the opportunity to work with her again. All the best!

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Education

  • Business School Master's Degree
    ESSCA
    2004
    Ecole de Commerce Marketing des services

Skill set

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