H4B Chelsea
H4B Chelsea is a flagship integrated health and wellness marketing agency within the Havas Health & You network, serving major pharmaceutical clients such as Bayer, Pfizer, Merck, Boehringer Ingelheim, and Amgen through brand strategy, creative, and multi-channel communications engagements.
- Company typePrivate
- Founded2018
- HeadquartersNew York, United States
- Headcount251–500
- GTM typeB2B
- OfferingServices
What H4B Chelsea does
H4B Chelsea is a flagship integrated health and wellness marketing agency within the Havas Health & You (HH&Y) network, founded in 2018 and headquartered at 200 Madison Avenue, New York. The agency combines science and psychology to understand the healthcare journey, focusing on customer behavior analysis, patient and provider engagement, and brand strategy for pharmaceutical and healthcare clients. Named enterprise clients include Bayer, Pfizer, Merck, Boehringer Ingelheim, and Amgen, with the broader network serving 200+ health and wellness clients across 60+ countries.
The agency's core technology stack is inherited from the HH&Y network and includes Havas Voice (an AI-enabled patient engagement consultancy powered by Atlas Health), the Behind The Mask longitudinal research platform, Prosumer Studies, and the X Index CX measurement tool. Underlying R&D includes a patent-pending flu prediction algorithm developed by the network's Global CCO. The agency operates as a wholly-owned subsidiary within Havas Health Inc., which is itself under Havas Group and ultimately majority-owned by Vivendi (Paris: VIV).
H4B Chelsea generates revenue through professional services engagements — brand strategy, creative development, and multi-channel communications campaigns — priced on a project or retainer basis typical of B2B healthcare communications agencies. Pricing is not publicly disclosed. The broader HH&Y network has achieved double-digit organic growth for 10 consecutive years, reached MM+M Agency/Network of the Year in 2022, and has expanded globally through acquisitions (Raison de Santé, 2022) and joint ventures (Republica Havas Health, 2022).
H4B Chelsea firmographics
Firmographics- Name
- H4B Chelsea
- Legal name
- Havas Health Inc.
- Website
- https://h4bchelsea.com
- Company type
- Private
- Founded year
- 2018
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- H4B Chelsea is a flagship integrated health and wellness marketing agency within the Havas Health & You network, serving major pharmaceutical clients such as Bayer, Pfizer, Merck, Boehringer Ingelheim, and Amgen through brand strategy, creative, and multi-channel communications engagements.
- Ownership category
- akta.pro rank
H4B Chelsea industry classification
Industry- Product category
- Healthcare Marketing Communications
- NAICS
- Advertising Agencies (541810), Advertising, Public Relations, and Related Services (5418)
- SIC
- Services-Advertising Agencies (7311)
- akta.pro primary industry
- Healthcare/Pharma Creative Agencies (MPAAAAAJ)
Keywords
Where H4B Chelsea is headquartered
LocationHeadquarters
- HQ city
- New York
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
H4B Chelsea business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Healthcare Communications Services: H4B Chelsea provides integrated health and wellness marketing services to pharmaceutical companies and healthcare brands. Revenue is generated through professional services engagements including brand strategy, creative development, and multi-channel communications campaigns.
Go-to-market motion1 record
H4B Chelsea product offering
Product offeringCore offering
H4B Chelsea is a flagship integrated health and wellness marketing agency that provides advertising, brand strategy, and communications services to pharmaceutical companies and healthcare brands. The agency combines science and psychology to understand the healthcare journey and customer behavior, delivering multi-channel marketing campaigns and brand-building solutions.
Product overview
H4B Chelsea operates as a flagship agency within the Havas Health & You (HH&Y) network, which is the world's largest global health network spanning over 60+ countries with 3,800-6,500+ individuals. The HH&Y network unifies multiple wholly owned health-and-communications networks including Havas Life, Health4Brands (H4B), Lynx, Havas Life PR, and Havas Health Plus, along with consumer health businesses and practices of Havas Creative Group. H4B Chelsea focuses specifically on integrated health and wellness marketing with a singular focus on customer behavior, combining science and psychology to understand the healthcare journey. The broader HH&Y network offers specialized services through various divisions including Havas Mango (wellness experiences), Havas Health CX (customer experience transformation), Havas Voice (patient engagement consultancy powered by Atlas Health), and additional capabilities in medical education, rare disease, digital therapeutics, and multicultural health communications.
Differentiator
Problem solved
Functional benefit
Brands
- Havas Life: Full-service health and wellness communications network operating globally
- Havas Lynx Group
- Havas Health Plus
- Havas Life PR
- Havas Voice
- Havas Health CX
- Havas Mango
- Havas Tonic
- Republica Havas Health
- Havas All In
- Havas Health Network & I Benefits
- Generation H
- Fellowship Program
Products and services
- Integrated Health and Wellness Marketing Services Full-service integrated health and wellness marketing agency offering brand strategy, creative development, and multi-channel communications campaigns for pharmaceutical companies and healthcare brands. Combines science and psychology to understand patient and healthcare provider behavior across the healthcare journey.
- Havas Voice (Patient Engagement Consultancy) Patient engagement consultancy powered by Atlas Health that leverages AI-enabled conversational analysis to identify influential and engaged patients, assisting brands in forming relationships with leading individuals and tracking their proximity to relevant health conversations.
- Behind The Mask Research Platform Longitudinal, multi-armed global research project documenting the evolution of health and wellness, containing both qualitative and quantitative arms providing continuous insights into changing nature of the health industry.
- Prosumer Studies and X Index Proprietary consumer research including Meaningful Brands study of 350,000 consumers and X Index for measuring and managing customer experience in healthcare.
Quantifiable outcome
- Double-digit organic growth for 10 consecutive years (HH&Y network-wide)
- +1 more outcomes
Companies that use H4B Chelsea
Customer profileNamed customers6 records
Ideal customer profiles2 records
H4B Chelsea technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
H4B Chelsea partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Atlas HealthcoreHavas Voice, powered by Atlas Health, is a patient engagement consultancy that leverages a first-of-its-kind approach to pinpoint sources of health influence in real time. The Atlas Health platform identifies influential and engaged patients through proprietary AI-enabled conversational analysis to assist brands in forming relationships with leading individuals and tracking their proximity to relevant conversations.
Scale indicators6 records
Recent moves6 records
Expansion highlights6 records
H4B Chelsea competitors and assessment
Company assessmentDirect peers
- Patients & Purpose: Patient-focused health agency within Omnicom Health Group offering patient engagement, brand strategy, and CRM. Closely comparable to H4B Chelsea's specialty in combining science with customer behavior to drive patient-focused pharma marketing.
- Publicis Health: Health-focused network within Publicis Groupe, offering creative, medical, and patient marketing services. Directly comparable as a sibling-network agency competing for similar enterprise pharma budgets at comparable scale.
- Ogilvy Health: Healthcare marketing arm of WPP's Ogilvy network, offering brand strategy, medical communications, and patient engagement. Closely comparable to H4B Chelsea in serving global pharma clients with integrated multi-channel campaigns.
- FCB Health: One of the largest health-focused creative agencies within IPG's FCB network, offering integrated pharma and consumer health marketing. Directly competes with H4B Chelsea for enterprise pharma brand assignments and operates at comparable global scale.
- McCann Health: Global health communications network within IPG/McCann Worldgroup, serving pharmaceutical, biotech, and consumer health clients. Comparable in scope to H4B Chelsea with similar pharma client roster and integrated campaign offerings.
- Daggerwing Health: Insight-driven healthcare communications agency within the Omnicom Health Group network. Directly comparable to H4B Chelsea in offering integrated health and wellness marketing to major pharma clients; notably, H4B Chelsea's President Violet Aldaia was recruited from this agency.
- Real Chemistry: Independent healthcare marketing and communications firm offering brand strategy, PR, and data-driven patient engagement. Directly comparable to H4B Chelsea's integrated health and wellness marketing offering with similar enterprise pharma client base.
- Saatchi & Saatchi Wellness: Consumer wellness and OTC marketing agency within Publicis. Compares to H4B Chelsea's consumer-facing Havas Tonic sub-brand, with similar OTC, wellness, and consumer health client focus.
- Evoke: Global health communications agency within the Huntsworth (now merged with Inizio) network, offering pharma advertising, medical communications, and patient engagement. Compares directly to H4B Chelsea as a health-specialist agency serving major pharma brands.
Broad incumbents
- Syneos Health Communications: Broader clinical and commercial services organization with significant communications and advertising capabilities. Comparable as a competitor to H4B Chelsea's parent HH&Y network for integrated pharma services, though operating at significantly larger scale across clinical and commercial.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
H4B Chelsea social profiles
Digital presenceH4B Chelsea compliance and trust
Trust signalCompliance5 records
H4B Chelsea financial estimates
Financial estimateRevenue estimate
Valuation estimate
H4B Chelsea leadership team
Management profileNumber of profiles
Profiles2 records
H4B Chelsea subsidiaries and ownership
Company hierarchySubsidiaries13 records
H4B Chelsea funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
H4B Chelsea M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about H4B Chelsea
What does H4B Chelsea do?
H4B Chelsea is a flagship integrated health and wellness marketing agency that provides advertising, brand strategy, and communications services to pharmaceutical companies and healthcare brands. The agency combines science and psychology to understand the healthcare journey and customer behavior, delivering multi-channel marketing campaigns and brand-building solutions.
Is H4B Chelsea a public or private company?
H4B Chelsea is a private company. It is classified as corporate owned and is currently operating.
When was H4B Chelsea founded?
H4B Chelsea was founded in 2018. It employs 251 to 500 people.
Where is H4B Chelsea based?
H4B Chelsea is headquartered in New York, United States, in the North America region.
How does H4B Chelsea make money?
One revenue line is on record: healthcare Communications Services.
Who are H4B Chelsea's main competitors?
Direct peers on record are Patients & Purpose, Publicis Health, Ogilvy Health, FCB Health, McCann Health, Daggerwing Health, Real Chemistry, Saatchi & Saatchi Wellness and Evoke. Syneos Health Communications is listed as a broad incumbent.
Does H4B Chelsea have an API?
No public API is recorded for H4B Chelsea.
What industry is H4B Chelsea in?
H4B Chelsea's product category is Healthcare Marketing Communications. Its primary akta.pro industry code is MPAAAAAJ, Healthcare/Pharma Creative Agencies. Its NAICS code is 541810 and its SIC code is 7311.