Insights

Global Market Presence CSL Seqirus operates in over 20 countries with manufacturing facilities in the US, UK, Germany, and Australia, presenting multiple entry points for expanding partnerships and sales of influenza vaccines and related pharmaceuticals in key international markets.

Innovative Vaccines The company's focus on developing cell-based and adjuvanted seasonal influenza vaccines along with its active research into vaccines against highly pathogenic avian influenza creates opportunities to supply cutting-edge vaccine solutions to governments and healthcare providers.

Strategic Public Health Collaborations Partnerships with agencies like the US Department of Health and Human Services and ongoing development of mRNA-based vaccines position CSL Seqirus as a strategic vendor for government stockpiles and pandemic preparedness programs.

Community & Specialty Products In Australia and New Zealand, CSL Seqirus markets essential vaccines such as antivenoms and Q fever vaccine, opening avenues to offer these specialty pharmaceutical products to regional health authorities and private healthcare providers.

Research & Data Leadership Recent launches of supporting clinical data and ongoing vaccine development initiatives position CSL Seqirus as a trusted innovator, enabling sales teams to leverage credibility when engaging public health sectors and vaccine resellers seeking proven and advanced influenza solutions.

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
92%
First.Middle@seqirus.comJohn.Michael@seqirus.com
1%
FirLast@seqirus.comJohDoe@seqirus.com
1%
Last.First@seqirus.comDoe.John@seqirus.com
1%
Last.F@seqirus.comDoe.J@seqirus.com
1%
First-L@seqirus.comJohn-D@seqirus.com
1%
FirstL@seqirus.comJohnD@seqirus.com
1%
LastFi@seqirus.comDoeJo@seqirus.com
1%
FMLast@seqirus.comJMDoe@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 Vice President Operations And Site Head Holly Springs: J. A.President: G. N.Head Of Site Validation, Parkville: D. E.. 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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