Company Insights
Published on
April 22, 2026

How Many People Work at Oklo? Headcount and Employee Trends

Total Employees
120
7.2% from last year
2
New Hires (YTD)
29
5% of total workforce
Departments
11
650 in Engineering
Locations
21
5,012 in New York, NY
  • Oklo Inc. is an advanced nuclear technology company focused on developing fast fission power plants, with a market position strengthened by being the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant.
  • In March 2026, Oklo published its financial results for 2025 and announced a strategic partnership with Blykalla AB to expand collaboration on fast reactor commercialization, involving planned investments of $100-200 million and 30-40 engineers.
  • Oklo's partnership with Blykalla aims to accelerate the industrialization of advanced nuclear reactors, leveraging both companies' expertise to bring new power plants online more quickly.
  • Ideal buyers for Oklo include energy providers and government agencies seeking reliable and clean energy solutions, as Oklo addresses the growing demand for sustainable energy sources while ensuring rigorous safety and design standards.

Oklo Headcount Breakdown by Department

Engineering is Oklo’s largest function, employing about 61 people and accounting for just over half of total staff, underscoring the technical nature of its clean-energy mission. Commercial and operational support is spread across several midsize groups: Marketing & Product and Business Management each have 11 employees, while Sales & Support and Finance & Administration each employ 10. Smaller yet essential teams in Operations, Risk & Compliance, Legal, IT, and other specialized roles round out the organization. The low overall attrition rate indicates relative stability across these departments.

Engineering
61
Marketing and Product
11
Business Management
11
Sales and Support
10
Finance and Administration
10
Operations
5
Risk, Safety, Compliance
4
Legal
3
Information Technology
2
Other
3

Oklo Employees by Location

Oklo maintains a notable presence in California, with 25 employees in San Francisco and smaller clusters in San Jose, Santa Clara, Los Angeles, and San Diego. Additional hubs include New York, Denver, Washington, DC, and Corvallis, Oregon. Nearly half of the workforce—about 59 employees—are categorized under "Other," suggesting a sizeable remote or flexible location segment. This distribution indicates that while headquarters activity is concentrated on the West Coast, the company’s talent network extends across multiple U.S. regions.

San Francisco, CA
25
San Jose, CA
6
Santa Clara, CA
6
Los Angeles, CA
5
San Diego, CA
4
New York, NY
5
Denver, CO
4
Washington, DC
3
Corvallis, OR
3
Other
59
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