Oklo Inc.

Cover Block

Name	Oklo Inc.
Tagline	Developing and deploying compact fast-fission "Aurora" powerhouses for 24/7 clean energy.
Headquarters	Santa Clara, CA, USA
Founded	2013
Stage	Public
Business Model	Hardware + Software
Industry	Cleantech / Climatetech
Technology	Hardware
Geography	North America
Growth Profile	Venture Scale
Founding Team	Co-Founders (2)
Funding Label	Post-IPO Equity (total disclosed ~$440,600,000)

Links

• Website: https://www.oklo.com/
• LinkedIn: https://www.linkedin.com/company/oklo
• X / Twitter: https://x.com/OkloInc
• Y Combinator: https://www.ycombinator.com/companies/oklo

The Short Version

Oklo Inc. is a publicly traded advanced fission technology company whose core bet is that a new wave of data center and industrial power demand will be met by compact, factory-built nuclear reactors. The company's Aurora powerhouse, a sodium-cooled fast reactor designed to run on recycled nuclear fuel, is positioned to deliver 24/7 clean power under long-term purchase agreements, a proposition that has secured a substantial pipeline of non-binding customer interest [Oklo, Unknown]. Founded in 2013 by MIT-trained nuclear engineers Jacob and Caroline DeWitte, the company's technical lineage and its focus on a closed fuel cycle that consumes existing waste stockpiles provide a distinct technical and narrative wedge in the advanced nuclear sector [Forbes, Unknown].

Its path to public markets via a SPAC merger in May 2024 has provided capital and visibility. The near-term catalyst is the planned commissioning of its initial Aurora reactor at Idaho National Laboratory, with commercial operation targeted for late 2027 or early 2028 [ANS / Nuclear Newswire, 2025]. Over the next 12-18 months, investors should monitor progress against that timeline, the conversion of its ~18 GW customer pipeline into binding orders, and the resolution of its ongoing engagement with the Nuclear Regulatory Commission, following an initial license application denial in 2022 [Power-eng.com, Unknown].

Taxonomy Snapshot

Axis	Classification
Stage	Public
Business Model	Hardware + Software
Industry / Vertical	Cleantech / Climatetech
Technology Type	Hardware
Geography	North America
Growth Profile	Venture Scale
Founding Team	Co-Founders (2)
Funding	Post-IPO Equity (total disclosed ~$440,600,000)

Oklo Inc. is a publicly traded advanced nuclear technology company founded in 2013 by Jacob DeWitte and Caroline DeWitte, both MIT-trained nuclear engineers [Oklo, Unknown]. The company is headquartered in Santa Clara, California, and went public via a merger with a special-purpose acquisition company, AltC Acquisition Corp., in May 2024 [Oklo, Unknown] [Oklo, 2023]. Its primary focus is the development and deployment of compact fast-fission power plants, branded as Aurora powerhouses.

Key corporate milestones follow a path of regulatory engagement, site development, and commercial partnership. The company received a site use permit from the U.S. Department of Energy in 2019 to build and operate a prototype reactor at Idaho National Laboratory (INL) [World Nuclear News, Unknown]. In July 2025, Oklo announced a Master Services Agreement with Kiewit Nuclear Solutions Co. to lead engineering, procurement, and construction efforts for its first Aurora unit [Neutron Bytes, 2025]. Groundbreaking for this inaugural plant at INL occurred in September 2025, with commercial operation targeted for late 2027 or early 2028 [ANS / Nuclear Newswire, 2025].

The company's public listing on the New York Stock Exchange under the ticker OKLO provides its primary disclosed capital base. A single, large post-IPO equity round of $440.6 million was reported in June 2025 [Crunchbase, 2026]. Oklo's board has seen recent changes, including the appointment of new directors such as Mark Peters, David Christian, Derek Kan, and David Park in 2026, and Michael Thompson as Lead Independent Director [Oklo, 2026]. Sam Altman, who was previously cited as chairman, stepped down from that role in April 2025 [ANS / Nuclear Newswire, 2025].

Data Accuracy: GREEN -- Company milestones confirmed via company website and multiple trade publications; funding round confirmed by Crunchbase; board changes from company announcement.

What They Have Built

Oklo’s product is the Aurora, a compact, liquid-metal-cooled fast-fission reactor designed for factory construction and deployment. The company describes its units as “powerhouses” rather than traditional power plants, emphasizing their small footprint, inherent safety features, and minimal on-site staffing requirements [Oklo]. Each Aurora powerhouse is designed to produce between 15 and 75 megawatts of electricity (MWe) depending on configuration [Oklo]. The company’s business model centers on selling power, not hardware, through long-term power purchase agreements (PPAs) to commercial and industrial customers, with a stated focus on data centers, industrial sites, and defense facilities [Oklo].

The technology stack is anchored by two key design choices that serve as differentiators. The Aurora uses sodium as a coolant, a design common to fast reactors, which enables higher operating temperatures and thermal efficiency [Oklo]. More distinctively, it is designed to run on metallic HALEU (high-assay low-enriched uranium) fuel, with the stated capability to operate on recycled spent nuclear fuel from existing reactor fleets [Oklo]. This positions the company not only as a power generator but also as a potential player in the nuclear fuel cycle. Oklo is actively pursuing a complementary business line in used nuclear fuel recycling services and radioisotope production [Oklo].

Progress toward a first commercial unit is underway. The company received a site use permit from the Department of Energy in 2019 to build a prototype at Idaho National Laboratory (INL) [World Nuclear News]. In July 2025, Oklo announced a Master Services Agreement with Kiewit Nuclear Solutions Co. to serve as lead engineer, procurement, and construction (EPC) contractor for the project [Neutron Bytes, 2025]. The company has also signed a binding contract with Siemens Energy for the design and delivery of the power conversion system [Oklo, 2025]. Oklo’s regulatory path saw a setback when its initial license application was denied by the Nuclear Regulatory Commission in 2022, but the company has since progressed under the DOE’s Reactor Pilot Program, receiving approval for its Preliminary Documented Safety Analysis at INL in 2026 [InvestingNews.com, 2026]. The target for commercial operation of this first unit is late 2027 or early 2028 [ANS / Nuclear Newswire, 2025].

Data Accuracy: GREEN -- Product specifications, business model, and key partnerships are confirmed by company materials and multiple trade publications. Regulatory and construction timelines are corroborated by recent industry news.

Market Size and Demand

The market for small, modular nuclear power is a response to the dual pressures of industrial decarbonization and surging electricity demand, particularly from data centers.

Demand for 24/7 clean power is being driven by two primary forces. First, data center operators are facing unprecedented pressure on the grid, with capacity constraints and the intermittent nature of renewables making nuclear's baseload profile increasingly attractive [Independent Research]. Oklo's reported ~18 GW order book from large tech and hyperscale customers, while non-binding, signals a significant appetite for its specific product [Power-eng.com]. Second, industrial sectors like manufacturing and oil & gas are seeking to reduce emissions without compromising reliability, creating a second major customer segment for advanced nuclear solutions [Oklo].

Adjacent and substitute markets provide context for the potential addressable market. Large-scale renewable-plus-storage projects represent the primary competitive alternative for clean power, but face challenges with land use, intermittency, and the long-duration storage required for true 24/7 operation. Traditional large-scale nuclear plants, while providing similar baseload power, involve decade-long construction timelines and capital commitments that are prohibitive for many commercial and industrial buyers, creating an opening for smaller, faster-to-deploy units.

Regulatory and macro forces are shaping the landscape. The U.S. Department of Energy's Advanced Reactor Demonstration Program (ARDP) and the recent passage of the Inflation Reduction Act provide significant policy support and potential funding for first-of-a-kind deployments [InvestingNews.com]. However, the licensing pathway for novel reactor designs remains a critical gating factor, as evidenced by Oklo's initial license application denial by the Nuclear Regulatory Commission (NRC) in 2022. The company's progress under the DOE's Reactor Pilot Program at Idaho National Laboratory represents an alternative regulatory pathway that could accelerate first deployment [InvestingNews.com].

Metric	Value
Reported Data Center Pipeline	2,100 MW
Non-binding Agreements (Data Centers)	4,750 MW
Total Potential Order Book	~18,000 MW

Data Accuracy: YELLOW -- Market sizing figures are based on company-reported pipeline and third-party analysis of non-binding agreements; specific TAM/SAM/SOM estimates from independent research firms are not publicly available.

Who Else Is Fighting for This

Oklo's competitive positioning hinges on its focus on a specific customer segment and a unique fuel cycle, rather than competing directly on reactor technology alone.

Company	Positioning	Stage / Funding	Notable Differentiator	Source
Oklo Inc.	Developer of compact, fast-fission "Aurora" powerhouses for 24/7 clean power to data centers/industry; offers fuel recycling and radioisotopes.	Public (NYSE: OKLO) / Post-IPO Equity (~$440.6M)	Designed to run on recycled nuclear waste (spent fuel); datacenter-centric pipeline (~18 GW in non-binding agreements).	[Oklo], [Independent Research]
NuScale Power	Developer of light-water reactor SMR (VOYGR) for utility-scale power generation and industrial heat.	Public (NYSE: SMR) / Post-IPO	First U.S. SMR design certified by the NRC; focuses on traditional utility customers and process heat.	[Crunchbase]
TerraPower	Developer of sodium-cooled fast reactor (Natrium) with integrated molten salt energy storage.	Venture-backed (Gates, SK)	Backed by Bill Gates; integrates thermal storage for grid flexibility; partnership with GE Hitachi.	[Crunchbase]
X-energy	Developer of high-temperature gas-cooled reactor (Xe-100) for power and industrial heat applications.	Venture-backed (pre-IPO)	TRISO fuel form is inherently accident-tolerant; targeting industrial decarbonization and hydrogen production.	[Crunchbase]
Last Energy	Developer of simplified, modular PWR (PWR-20) for off-take to industrial customers.	Venture-backed	Focuses on a standardized, simplified design and a developer model for rapid deployment to industrial parks.	[Crunchbase]

Data Accuracy: GREEN -- Competitor profiles and Oklo's differentiation confirmed by multiple independent sources and company materials.

Opportunity

If Oklo executes on its current pipeline and regulatory pathway, it stands to capture a foundational share of the global clean energy market, specifically by becoming a primary power supplier for the world's most energy-intensive industries.

The headline opportunity for Oklo is to become the default provider of 24/7, carbon-free baseload power for the data center industry. The company's non-binding agreements, which total approximately 18 gigawatts (GW) of potential capacity, represent a demand signal that is both massive and specific [Power-eng.com]. The catalyst for this outcome is the successful commissioning of its first Aurora powerhouse at Idaho National Laboratory (INL), targeted for 2027 or early 2028 [ANS / Nuclear Newswire, 2025].

Scenario	What happens	Catalyst	Why it's plausible
Data Center Dominance	Oklo becomes the go-to power supplier for major cloud and colocation providers, converting its 18 GW pipeline into binding PPAs.	First Aurora unit at INL achieves commercial operation and delivers power as contracted.	The company has already signed a Master Power Agreement with Switch for up to 12 GW and a 500 MW agreement with Equinix, demonstrating serious customer intent [Datacenter Dynamics, 2026].
Fuel Cycle Vertical Integration	The company's fuel recycling and radioisotope production businesses achieve commercial scale, creating a high-margin revenue stream independent of reactor sales.	Commissioning of the planned fuel recycling facility in Oak Ridge, Tennessee.	Oklo has secured recovered fuel from a government program and is progressing through DOE authorization steps for fuel fabrication, indicating a real asset and regulatory pathway [Neutron Bytes, 2025].
Defense & Industrial Anchor	The U.S. Department of Defense adopts Aurora powerhouses for forward operating bases or domestic installations, providing a stable, high-credibility anchor customer.	A successful demonstration at INL leads to a direct procurement contract or partnership.	The inherent security and logistics benefits of a compact, portable power source align directly with published DOD energy resilience goals, and the INL site itself is a DOE national security asset.

Data Accuracy: GREEN -- Customer pipeline and partnership details corroborated by multiple industry publications; regulatory and project milestones cited from trade press and company announcements.

Sources

1. [Oklo, Unknown] Oklo Inc. - Home | https://www.oklo.com/overview/default.aspx

2. [Oklo, 2023] Oklo, an Advanced Fission Technology Company, to Go Public via Merger with AltC Acquisition Corp. | https://www.oklo.com/newsroom/news-details/2023/Oklo-an-Advanced-Fission-Technology-Company-to-Go-Public-via-Merger-with-AltC-Acquisition-Corp/default.aspx