Fortune has released its list of the most powerful women in 2015. The list includes 51 women, 27 of which are CEOs, and is the company’s 18th version of the list.

Here are the 10 most powerful women in 2015.

1. Mary Barra — Barra is the CEO of General Motors (GM).
2. Indra Nooyi — Nooyi is the CEO and Chairman of PepsiCo (PEP).
3. Ginni Rometty — Rometty is the CEO, Chairman, and President of IBM (IBM).
4. Marillyn Hewson — Hewson is the CEO, Chairman, and President of Lockheed Martin (LMT).
5. Ellen Kullman — Kullman is the CEO and Chairman of DuPont (DD).
6. Abigail Johnson — Johnson is the CEO and President of Fidelity Investments.
7. Meg Whitman — Whitman is the CEO, Chairman, and President of Hewlett-Packard (HPQ).
8. Sheryl Sandberg — Sandberg is the COO of Facebook (FB).
9. Irene Rosenfeld — Rosenfeld is the CEO and Chairman of Mondelez International (MDLZ).
10. Phebe Novakovic — Novakovic is the CEO and Chairman of General Dynamics (GD).

To see the other 41 women that made it on the list of the most powerful women in 2015, click here.

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