Insights

Global Manufacturing Presence CSL Seqirus operates manufacturing plants across the US, UK, Germany, and Australia, providing an extensive global footprint that can support supply chain diversification and enable quicker access to local markets, presenting opportunities for regional partners and international distribution channels.

Innovative Vaccine Development The company's recent advancements in cell-based and adjuvanted influenza vaccines, alongside its development of vaccines against highly pathogenic avian influenza, highlight ongoing R&D efforts, making it a valuable partner for healthcare providers seeking cutting-edge pandemic response solutions.

Expanding Public Health Collaborations CSL Seqirus's partnerships with government health agencies such as the US Department of Health and Human Services open opportunities to provide vaccines and pandemic preparedness solutions to government programs and large healthcare systems globally.

Strong Research and Clinical Data Recent study data supporting the efficacy and public health value of their influenza vaccines positions CSL Seqirus as a trusted supplier, creating sales opportunities in hospitals, clinics, and public health organizations seeking evidence-based vaccination options.

Regulatory and Market Positions As the second largest influenza vaccine provider with a diverse portfolio and significant manufacturing capacity, CSL Seqirus is well-positioned to capitalize on seasonal and pandemic-related vaccine demands across multiple regions, presenting growth opportunities with commercial or government stakeholders.

CSL Seqirus Tech Stack

CSL Seqirus uses 8 technology products and services including Open Graph, OneTrust, Babel, and more. Explore CSL Seqirus's tech stack below.

  • Open Graph
    Content Management System
  • OneTrust
    Cookie Compliance
  • Babel
    Development
  • Hammer.js
    Javascript Libraries
  • Video.js
    Javascript Libraries
  • jQuery
    Javascript Libraries
  • HSTS
    Security
  • Google Tag Manager
    Tag Management

CSL Seqirus's Email Address Formats

CSL Seqirus uses at least 2 format(s):
CSL Seqirus Email FormatsExamplePercentage
First.Last@seqirus.comJohn.Doe@seqirus.com
98%
First.Middle@seqirus.comJohn.Michael@seqirus.com
1%
Last_First@seqirus.comDoe_John@seqirus.com
1%

Frequently Asked Questions

Where is CSL Seqirus's headquarters located?

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CSL Seqirus's main headquarters is located at 29 Market Street Maidenhead, England sl6 8aa United Kingdom. The company has employees across 5 continents, including EuropeNorth AmericaOceania.

What is CSL Seqirus's official website and social media links?

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CSL Seqirus's official website is cslseqirus.com and has social profiles on LinkedIn.

How much revenue does CSL Seqirus generate?

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As of December 2025, CSL Seqirus's annual revenue is estimated to be $5B.

What is CSL Seqirus's NAICS code?

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CSL Seqirus's NAICS code is 3254 - Pharmaceutical and Medicine Manufacturing.

How many employees does CSL Seqirus have currently?

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As of December 2025, CSL Seqirus has approximately 2.7K employees across 5 continents, including EuropeNorth AmericaOceania. Key team members include Chief Medical Officer, Svp-Head Of Research And Development: G. C. S.Vice President & Head Of Medical Affairs, Csl Seqirus: J. A.Vp Head Global Regulatory Affairs And Pharmacovigliance: S. C.. Explore CSL Seqirus's employee directory with LeadIQ.

What industry does CSL Seqirus belong to?

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CSL Seqirus operates in the Pharmaceutical Manufacturing industry.

What technology does CSL Seqirus use?

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CSL Seqirus's tech stack includes Open GraphOneTrustBabelHammer.jsVideo.jsjQueryHSTSGoogle Tag Manager.

What is CSL Seqirus's email format?

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CSL Seqirus's email format typically follows the pattern of First.Last@seqirus.com. Find more CSL Seqirus email formats with LeadIQ.

When was CSL Seqirus founded?

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CSL Seqirus was founded in 1916.

CSL Seqirus

Pharmaceutical ManufacturingEngland, United Kingdom1001-5000 Employees

CSL Seqirus, a business unit of CSL, was created from the combined strength and expertise of bioCSL and the influenza vaccines business formerly owned by Novartis. In July 2015, the two businesses joined forces to create CSL Seqirus, now the second largest influenza vaccine company in the world.  With extensive research and production expertise and manufacturing plants in the US, UK, Germany and Australia, CSL Seqirus is a transcontinental partner in pandemic preparedness and a major contributor to the prevention and control of influenza globally. CSL Seqirus has a workforce of over 3,000 employees, significant manufacturing capacity and a commercial presence in over 20 countries. 
 
In Australia and New Zealand, CSL Seqirus markets a comprehensive range of vaccines and specialty pharmaceutical products. It also manufactures products of national significance for Australia, including antivenoms and Q fever vaccine. See our community guidelines: https://bit.ly/3QZbZeZ

Section iconCompany Overview

Headquarters
29 Market Street Maidenhead, England sl6 8aa United Kingdom
NAICS Code
3254 - Pharmaceutical and Medicine Manufacturing
Founded
1916
Employees
1001-5000

Section iconFunding & Financials

  • $25M$50M

    CSL Seqirus's revenue is estimated to be in the range of $25M$50M

Section iconFunding & Financials

  • $25M$50M

    CSL Seqirus's revenue is estimated to be in the range of $25M$50M

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