How many employees work at International Vaccine?

International Vaccine Institute has 481 employees, according to Revelio Labs workforce intelligence data. The YoY growth rate is 10.4%.

Data source: Revelio Labs Coverage: Global workforce Latest update: December 2025

About International Vaccine

The International Vaccine Institute (IVI) is an nonprofit International Organization IVI, through its mission to discover, develop and deliver safe, effective and affordable vaccines, enables the world’s most vulnerable people to live full, productive lives by accelerating R&D for crucial vaccines with partners in the Republic of Korea, across Asia, and around the world. IVI was founded on the belief that the health of children in developing countries can be dramatically improved by the use of new and improved vaccines. Working in collaboration with the international scientific community, public health organizations, governments, and industry, IVI is involved in all areas of the vaccine spectrum – from new vaccine design in the laboratory, to vaccine development and evaluation in the field, to facilitating sustainable introduction of vaccines in countries where they are most needed. Created initially as an initiative of the United Nations Development Programme (UNDP), IVI began formal operations as an independent international organization in 1997 in Seoul, Korea. Currently, IVI has 35 countries and the World Health Organization (WHO) as signatories and/or state parties to its Establishment Agreement. The Institute has a unique mandate to work exclusively on vaccine development and introduction specifically for people in developing countries, with a focus on neglected diseases affecting these regions.

As of December 2025

International Vaccine
workforce metrics

Headcount

481

Avg. Salary

$31.4k

Tenure

3.4yr

Growth Rate

10.4%

Hiring Rate

Attrition Rate

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Employee Headcount

Interactive chart of International Vaccine annual worldwide employee count from 2023 to 2025.

  • International Vaccine total number of employees in 2025 was 481, a 10.4% increase from 2024.
  • International Vaccine total number of employees in 2024 was 433, a 6.3% increase from 2023.
  • International Vaccine total number of employees in 2023 was 407, a 5.9% increase from 2022.

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Employee Geographic Breakdown

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Employee Role Breakdown

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Employee Compensation

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Active Job Postings

Interactive chart of International Vaccine annual active job postings from 2023 to 2025.

  • International Vaccine active job postings in 2025 was 9, a 25.0% increase from 2024.
  • International Vaccine active job postings in 2024 was 7, a 72.7% decline from 2023.
  • International Vaccine active job postings in 2023 was 15, a 100.0% increase from 2022.

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Employee Sentiment

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