SEITOSEI ACTIFIN - Finance & Corporate Communication

What SEITOSEI ACTIFIN - Finance & Corporate Communication does

SEITOSEI ACTIFIN is an independent Paris-based financial and corporate communications agency founded in 2004 by Eric Eludut, serving listed companies on Euronext Paris across the full market-cap spectrum from CAC 40 to Euronext Growth. Operating under a "one player / one stop-shop / all markets" positioning, the firm delivers both strategic advisory and integrated operational execution for financial communications, capital markets transactions, shareholder engagement, media relations, and investor relations.

Its service portfolio is organized around five interconnected pillars: (1) financial and market communications advisory; (2) capital markets operations covering IPOs, capital increases with rights issues, and tender offers; (3) shareholder and stakeholder engagement including ESOP program design and AGM management; (4) media relations and corporate influence; and (5) investor relations including roadshows, investor targeting, and proxy solicitation. These services are supported by an in-house digital platforms layer providing multilingual microsites, shareholder simulation tools, CRM capabilities, and shareholder hotlines. The firm has documented over 70 capital markets transactions and earned multiple Euronext Awards in 2024 and 2025.

The business operates as a professional services firm with ~40 professionals supported by 30+ specialized experts (including IR officers, media consultants, full-stack developers, and motion designers), serving approximately 130 active clients — of which roughly 20% are based in French regions or internationally. Revenue is generated through annual retainer engagements and project-based mandates; no public pricing is disclosed. The firm is structured as a French SAS (simplified joint-stock company) with €78,700 share capital, is founder-controlled, has no disclosed external investors, and recently expanded its international footprint via its December 2025 entry into the WorldCom PR Group network and vertical depth in healthcare via the March 2024 acquisition of BIOTECH AGORA.

Name

SEITOSEI ACTIFIN - Finance & Corporate Communication

Legal name

SEITOSEI SAS

Website

https://seitosei-actifin.com

Company type

Private

Founded year

2004

Operating status

Operating

Short description

SEITOSEI ACTIFIN is an independent Paris-based financial and corporate communications advisory founded in 2004, serving roughly 130 listed companies on Euronext Paris — from CAC 40 to Euronext Growth — with integrated strategic advisory and execution across IR, capital markets transactions, ESOP, media relations, and investor relations.

Ownership category

akta.pro rank

Product category

Financial Communications Advisory

NAICS

Public Relations Agencies (541820)

SIC

Services-Management Consulting Services (8742)

akta.pro primary industry

Investor Relations (IR) & Capital Markets Communications (MPAAADAH)

Keywords

• Financial communications advisory
• Investor relations services
• Capital markets transactions
• Shareholder engagement
• Corporate communications agency

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Marketing or Sales, Technology or R&D, Operations

Revenue model

1. Financial Communication Advisory: Strategic advisory services for financial communications, investor relations, and corporate communications. Provided as year-round or project-based consulting engagements.
2. Operational Execution Services: Integrated operational execution including media relations, equity story development, investor engagement campaigns, digital platforms, shareholder hotlines, and proxy solicitation services.
3. Capital Markets Transaction Support: Support for IPOs, capital increases, tender offers, and other market transactions including event management, advertising campaigns, and dedicated microsites.
4. Employee Share Ownership Programs (ESOP): Design and management of employee share ownership plans including multilingual digital platforms, simulation tools, and educational content.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

SEITOSEI ACTIFIN is an independent financial and corporate communications agency based in Paris that provides strategic advisory and operational execution services for listed companies and financial ecosystem players. It supports the full lifecycle of equity-market communication needs including financial communications, capital markets transactions (IPOs, capital increases, tender offers), investor relations, media relations, crisis management, and shareholder engagement programs including ESOPs. The agency combines strategic consulting with integrated operational implementation, delivered by approximately 40 professionals serving around 130 active clients across all Euronext Paris markets from CAC 40 to Euronext Growth.

Product overview

SEITOSEI ACTIFIN operates as an integrated financial and corporate communications agency offering a unified service portfolio rather than discrete software products. The core offering spans five interconnected service pillars: (1) Communication Financière et Boursière for strategic financial communications advisory; (2) Capital Markets & Opérations de Marché for IPO support, capital increases, and tender offers; (3) Communication Actionnariale & Engagement des Parties Prenantes for shareholder engagement including ESOP programs; (4) Relations Médias et Influence Corporate for media relations and crisis management; and (5) Relations Investisseurs for investor relations activities. These services are supported by Plateformes Digitales et Outils de Communication providing the technological infrastructure including multilingual digital platforms, simulation tools, CRM capabilities, and dedicated microsites. The agency delivers integrated strategic advisory combined with full operational execution through approximately 40 professionals serving approximately 130 clients.

Differentiator

Problem solved

Functional benefit

Products and services

• Financial and Market Communications Advisory (Communication Financière et Boursière) Strategic and operational advisory services for financial and market communications, including regulated communications, financial reputation management, market sentiment analysis, equity story positioning, governance and transparency communications, and investor confidence building for listed companies.
• Capital Markets & Market Operations Support End-to-end support for capital market transactions including IPOs, capital increases with rights issues, and tender offers, encompassing equity story development, investor mobilization, executive coaching, media relations, dedicated microsites, shareholder hotlines, proxy solicitation, and digital advertising campaigns.
• Shareholder Communications & Stakeholder Engagement Shareholder relations and stakeholder engagement services including ESOP design and management, shareholder CRM, hotline services, shareholder clubs, webcasts, AGM preparation and facilitation, proxy solicitation, and proxy fighting support.
• Media Relations and Corporate Influence Media relations and corporate influence services encompassing media strategy, opinion leader management, executive social media, media training, crisis management, corporate storytelling, monitoring and analysis, and journalist/influencer mapping.
• Investor Relations Services Investor relations services including roadshows, investor forums, one-to-one meetings, small group meetings, investor targeting, shareholder analytics, investor perception studies, market sentiment analysis, and proxy fighting support.
• Digital Platforms and Communication Tools (Plateformes Digitales et Outils de Communication) Digital communication infrastructure including multilingual digital platforms, shareholder simulation tools, dedicated transaction microsites, digital campaigns, and shareholder hotlines supporting various corporate communications initiatives.

Named customers32 records

Segments6 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Three partnerships are on record, tiered core.

• WorldCom Public Relations GroupcoreGTM or Marketing PartnerInternational public relations network providing global reach and cross-referrals. SEITOSEI ACTIFIN joined the network in December 2025, strengthening its international presence and capabilities for multinational clients.
• CLIFFcoreStrategic or Co-development PartnerProfessional network for financial communication practitioners. Membership provides industry best practices sharing and professional development.
• Euronext IPOready ProgramcoreStrategic or Co-development PartnerOfficial partner of Euronext's IPOready program, providing pre-IPO preparation support to companies preparing for listing on Euronext markets.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Brunswick Group: Global financial communications and stakeholder engagement advisory founded by a former financier with strong Paris presence. Directly comparable operating model to SEITOSEI ACTIFIN — IR, capital markets communications, M&A, crisis — but at significantly larger scale and with global offices.
• FTI Consulting: Global advisory firm with a dedicated Strategic Communications segment covering financial communications, investor relations, crisis and restructuring. Competes with SEITOSEI ACTIFIN on CAC 40 mandates; broader portfolio includes consulting and forensic segments.
• Havas (Havas Paris / Havas Red): Global communications group with dedicated financial communications and investor relations practices in France; competes for the same CAC 40 mandates but within a much broader advertising/media portfolio.
• Publicis Groupe: Global communications holding company with corporate communications and financial PR capabilities through its agencies (Publicis Consultants, MSL); competes for larger integrated mandates on CAC 40 clients.

Direct peers

• Sodali: Specialized shareholder services and governance advisory firm with strong French and European presence covering proxy solicitation, AGM coordination, M&A information services, and shareholder engagement — directly overlapping with SEITOSEI ACTIFIN's Communication Actionnariale and AGM execution workstreams.
• Georgeson: Leading global proxy solicitation and shareholder services provider serving European listed companies; overlaps with SEITOSEI ACTIFIN's proxy fighting, AGM preparation, and shareholder analytics offerings.
• Tilder: Paris-based independent financial and corporate communications agency serving CAC 40, mid-cap, and pre-IPO companies. Closest French direct competitor to SEITOSEI ACTIFIN with overlapping investor relations, capital markets, and shareholder services practice areas.
• Image Sept: Established French financial and corporate communications agency providing media relations, IPO communications, M&A, and IR services to listed companies — direct competitor in the French IR advisory market.
• Citigate Dewe Rogerson: European financial communications and IR agency with London and Paris presence focused on IPOs, M&A, and ongoing IR programs — directly comparable to SEITOSEI ACTIFIN's transaction and ongoing advisory model.
• Actus Lares: French financial communications consultancy specialized in equity story development, IPOs, and shareholder relations for small and mid-cap companies on Euronext — direct peer serving the same primary market segments as SEITOSEI ACTIFIN.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about SEITOSEI ACTIFIN - Finance & Corporate Communication