Financial and corporate communications agency

Since companies need to convince increasingly demanding stakeholders at every stage of their strategy, Calyptus implements bespoke communication systems based on its dual expertise in communications and finance.
advised annually 
average expertise per consultant
Press releases
every year
Contact us


Financial communication

Helping managers of listed companies market their shares.


Raising your profile in the eyes of all your stakeholders.


Combining all our expertise on high-internsity short missions in support of strategic operations.

Tailor-made services

Calyptus offers a range of services tailored to the communication needs of companies of all sizes. From advisory to complete outsourcing of the communications manager function, including one-off assignments.


Meet the main requirements of good communication.

We can help you produce and monitor the main communication media and their distribution.


Stand out from the crowd to ensure your company's visibility and manage your reputation.

We'll work with you to develop your communications strategy, write and distribute materials, organise events and monitor targets.


A high level of expertise in handling your communications needs.

We take on the role of financial communications manager alongside your teams and your advisers.

Find out our services


A seasoned team

Our expertise comes from the world of communications and finance, in France and abroad, working for companies, banks, investment funds and agencies.

Meet our team
Mathieu calyptus

Mathieu Calleux

General Manager
Marie calyptus

Marie Calleux

Associate Director

Cyril Combe

Associate Director
Celine calyptus

Céline Bruggeman

PR Consultant
Houssain calyptus

Houssain Bouyalloul

Development Director
Philippe calyptus

Philippe Calleux

Nico calyptus

Nicolas Hélin

Consultant - Operations Manager
Darius calyptus

Darius Dinu

Communication manager
Imane Zakari calyptus

Imane Zakari

Communication manager
Delphine calyptus

Delphine Jabou

Accounting and administration manager

Our partners


Translation & copyright


Messaging & Speaking Coach


Web development


Editing & Web development


Employer identity and branding

Public Affairs


Graphic designers

Our latest articles

Deepen your understanding of financial communication with our blog articles! Explore our insights and expert advice to stay at the forefront of the industry.

See more articles

Who we are

Our origins

Philippe Calleux, an experienced advertising executive, acquired an investor relations firm in 1997, adding his advertising and communications expertise to gain a foothold in the IPO market. The first IPO was Buffalo Grill, which won Stratégies magazine’s 1998 award for the best IPO. In 1999, the agency became Calyptus, an entrepreneurial, family-run financial and corporate communications agency. Since then, Calyptus has supported its clients, both listed and unlisted, in their strategic communications, and has been involved in almost a hundred financial transactions.

communication evenementielle sponsoring parrainage calyptus
relations investisseurs analystes calyptus

Our Values


Act with probity, respecting best practices


Open-mindedness is a powerful lever for creativity


Engage with stakeholders and the ecosystem

Discover our history

What our customers say

  • The most quotable part of the testimonial.

    Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

  • Contact us

    Stay in touch

    Ready to add a new dimension to your financial and corporate communications? Contact us today! Fill in our contact form to get a quote.

    • +33 (0)1 53 65 68 68
      +33 (0)6 20 04 83 09
    • info(@)
    • Calyptus, 55, rue des Petites Ecuries 75010 Paris
    Contact form