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RadixArk

RadixArk

Private
Palo Alto, CaliforniaAI, Data & Cloud Infrastructurehttps://www.radixark.ai/

Last Round

Seed

May 5, 2026

Est. Valuation

$400M

Total Funding Raised

$170M

Momentum

Top 1%

of companies Caplight tracks

Company Overview

RadixArk is an AI infrastructure company that provides large-scale inference and training systems for developers, enterprises, and research labs.

Sector

AI, Data & Cloud Infrastructure

Verticals

AI Training Infrastructure, Cloud Infrastructure, ML Platforms, NLP & Conversational AI

Business Model

B2B

Customer Profile

Usage-Based SaaS, Services & Consulting

AI Layer

Infrastructure

Keywords

LLM servingLLM inferenceSGLangAI infrastructureinference optimizationLLM runtimevLLM alternativeGPU servingKV cacheconstrained decodingmodel serving engineAI model deploymentinference accelerationLLM opsML platform

Historical Pricing

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Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

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RadixArk Comparables

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RadixArk comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Inferact
91%
FriendliAI
86%
Deep Infra Inc.
75%

RadixArk Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
SeedMay 5, 2026
SeedJan 22, 2026
AngelAug 1, 2025

Key People

Founding team and executive leadership

Ying Sheng

Co-Founder (CEO)

Founding Team

RadixArk Investors

Notable investors and investment history

RadixArk investors
InvestorRounds
NVenturesSeed
A&E InvestmentsSeed
Walden CatalystSeed
LDV PartnersSeed
NVenturesSeed
Spark CapitalSeed
HOF CapitalSeed

Market signals

Structured signals derived from secondary market and firmographic data.

  • Aug 18, 2026

    Grew 43% QoQ, from 42 to 60 employees.

  • Jul 15, 2026

    Grew 96% QoQ, from 25 to 49 employees.

RadixArk Filings

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RadixArk filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

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Frequently Asked Questions

Common questions about RadixArk's valuation, stock price, and market status.

Is RadixArk a public or private company?

RadixArk is a private company.

What is the current stock price of RadixArk?

RadixArk is a private company with no public stock price. No recent secondary market data is available.

How much is RadixArk worth (valuation)?

RadixArk's valuation is estimated at $400.0M based on funding round data.

Can I buy RadixArk stock?

RadixArk shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.

When was RadixArk's last funding round?

RadixArk's most recent funding round was Seed on May 5, 2026.

Who are the main investors in RadixArk?

Key investors in RadixArk include Spark Capital, Accel.

Will RadixArk IPO soon?

No public IPO plans have been announced for RadixArk.

How can I track RadixArk secondary market activity?

Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor RadixArk's secondary market activity and sign up for updates.

Firmographic Details

HeadquartersPalo Alto, California
Employee Range51
Year Founded2025
Last FundingMay 5, 2026

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