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Rivos

Category: AI Chips / Semiconductors

Rivos was a startup developing high-performance, power-efficient, and secure server solutions based on the RISC-V architecture for AI and data analytics workloads. Acquired by Meta in October 2025. Rivos was founded in 2021. The company is led by Puneet Kumar. Based in Santa Clara, USA. Team size: 375. Total funding raised: Over $370 million. Latest round: Acquired. Key investors include ["Matrix Capital Management","Intel Capital","MediaTek","Walden Catalyst","Dell Technologies Capital","Koch Disruptive Technologies"].

Founded
2021
Headquarters
Santa Clara, USA
Team size
375
Total funding
Over $370 million

Value proposition

Rivos offered server solutions that provide a combination of high performance, power efficiency, and security, utilizing the open-source RISC-V architecture to create workload-defined hardware. The company was acquired by Meta in October 2025.

Products and solutions

["RISC-V based server chips for AI and data analytics","Integrated system solutions for enterprises"]

Unique value

Rivos was among the first companies to develop a high-performance server chip based on the RISC-V architecture. It was acquired by Meta in October 2025 to accelerate Meta's in-house AI chip development.

Target customer

The target customers for Rivos are enterprise clients in the data center and AI/ML markets.

Industries served

["Semiconductors","Data Centers","Artificial Intelligence"]

Technology advantage

Rivos's key advantage lay in its use of the open-source RISC-V architecture, which allowed for greater customization and efficiency. The company was also leveraging advanced manufacturing processes through a partnership with TSMC.

How they differentiate

Rivos developed server chips based on the open-source RISC-V architecture, focusing on power efficiency for generative AI and data analytics workloads in data centers. The company was acquired by Meta in October 2025 to accelerate Meta's in-house AI chip development.

Main competitors

["Nvidia","SiFive","Ampere Computing"]

Key partnerships

["Matrix Capital Management","Intel Capital","MediaTek","Canonical","VentureTech Alliance","Meta Platforms"]

Notable customers

["Meta Platforms (became acquirer)"]

Major milestones

["Founded in 2021","Raised over $250 million in a Series A-3 funding round in April 2024","Settled a lawsuit with Apple in February 2024","Sought $400-500M Series B funding in August 2025 at $2B+ valuation","Acquired by Meta in October 2025"]

Growth metrics

Not publicly available. The company was in pre-production stage before being acquired by Meta in October 2025.

Market positioning

Rivos was a startup positioning itself as a challenger to established players in the high-performance computing and AI chip market for data centers. It was acquired by Meta in October 2025 to bolster Meta's in-house AI chip development efforts.

Geographic focus

Rivos was headquartered in Santa Clara, California, with an office in Austin, Texas. Following acquisition by Meta, the team is being integrated into Meta's custom silicon group.

Patents and IP

Information regarding patents and specific intellectual property is not publicly available at this time.

About Puneet Kumar

Prior to Rivos, Puneet Kumar was a Senior Director at Google. He also held positions at Agnilux, Apple, PA Semi, SiByte, Broadcom, and Digital Equipment Corporation.

Official website: