Insights

Global influenza leadership CSL Seqirus is the second largest influenza vaccine company with manufacturing capacity across the US, UK, Germany and Australia, offering a broad global footprint for vaccine supply and collaboration on pandemic preparedness—a strong entry point for partnerships in regional immunization programs and government tenders.

Public health partnerships Recent collaborations with government health agencies and focus on alternatives to egg-based vaccines suggest opportunities to position advanced vaccines, including cell-based and mRNA approaches, to public health customers and national stockpiles.

Diverse product scope In addition to influenza vaccines, Seqirus markets vaccines and specialty pharmaceuticals locally (Australia and New Zealand) and produces antivenoms and Q fever vaccines, indicating cross-sell potential to expand into other biologics and specialty therapies.

R&D and data value Recent studies supporting the clinical, public health and economic value of vaccines highlight the ability to provide robust value propositions to payers and health systems, enabling consultative sales around outcomes and total cost of care.

Leadership and capacity A sizable manufacturing workforce and a dedicated leadership line (e.g., VP of manufacturing) signal reliability and scale for large volume contracts, manufacturing partnerships, and continued capacity expansion in vaccines and bioscience products.

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
  • core-js
    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

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 July 2026, CSL Seqirus's annual revenue is estimated to be $25M - $50M.

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 July 2026, CSL Seqirus has approximately 2.7K employees across 5 continents, including EuropeNorth AmericaOceania. Key team members include Vice President & Head Of Medical Affairs, Csl Seqirus: J. A.Vp Head Global Regulatory Affairs And Pharmacovigliance: S. C.Vice President Operations And Site Head Holly Springs: J. A.. Explore CSL Seqirus's employee directory with LeadIQ.

What industry does CSL Seqirus belong to?

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CSL Seqirus operates in the Pharmaceuticals industry.

What technology does CSL Seqirus use?

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CSL Seqirus's tech stack includes Open GraphOneTrustBabelHammer.jsVideo.jscore-jsHSTSGoogle 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 logo

CSL Seqirus

PharmaceuticalsEngland, United Kingdom1001-5000 Employees

CSL Seqirus is a pharmaceutical manufacturing company formed in 2015 through the merger of bioCSL and the influenza vaccines business formerly owned by Novartis. As a CSL business unit, it ranks among the world's leading producers of influenza vaccines, with manufacturing sites in the United States, the United Kingdom, Germany, and Australia. It is a major component of CSL's global operations and is described as the second-largest influenza vaccine company worldwide, with a footprint that spans more than 20 countries and a sizable, multinational workforce.

Based in Maidenhead, England, CSL Seqirus markets vaccines and specialty pharmaceutical products in Australia and New Zealand and manufactures antivenoms and Q fever vaccines for national programs. The company positions itself as a global partner in pandemic preparedness and influenza control, supported by extensive research and production capabilities across its sites. In 2023, it published data from three studies examining the clinical, public health, and economic value of cell-based and adjuvanted seasonal influenza vaccines.

Section iconCompany Overview

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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