Our Finances

Openness and transparency are COS core values. We invite all of our sponsors, partners, and members of the community to learn more about how our organization operates, the impact of our efforts, our financial position, and our nonprofit status.

Our Programs

Read about the evolution of COS and the strategic direction of our programs, products, and services.

501(c)(3) letter

Our 501(c)(3) status allows for charitable contributions to be tax deductible.

Form 990s

Our annual tax returns (990) for 2013, 2014, and 2015.

Financial Audit

COS has worked with an independent accounting firm each year to conduct an audit of our financial records, and to prepare statements and disclosures for 2013, 2014, and 2015.

COS has been very fortunate to receive increasing sponsorship each subsequent year, and has used these new investments to grow programs and operations in pursuit of our mission. Our community has responded enthusiastically to new tools and services and we are now pursuing strategies to sustain these services as public goods.

Interested in getting involved in supporting open science? Here are three easy ways:


Accelerate solutions to global problems. Every $1 helps us provide free access to nearly 3 GB of research data for a year.

Manage Your Research

Improve the way you manage your research and benefit from sharing more broadly at the same time.


Become an Ambassador today and help grow the open science community!