Harmonic
PrivateLast Round
Seed
Nov 5, 2025
Total Funding Raised
$6M
Momentum
Top 25%
of companies Caplight tracks
Company Overview
Harmonic operates in Crypto & Web3 and is based in New York City, New York. Its latest recorded funding round was a Seed round in November 2025.
Harmonic is a blockchain infrastructure company that develops an open block-building system for the Solana blockchain to allow validators to source blocks from multiple, competing builders.
Sector
Crypto & Web3
Verticals
Blockchain Infrastructure, DeFi, Staking Platforms
Business Model
B2B
Customer Profile
Usage-Based SaaS, Data as a Service
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Harmonic Comparables
Compare Harmonic with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Jito Labs | 86% | |
| Temporal | 80% | |
| Jito Network | 74% |
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Harmonic Funding Rounds
Historical fundraising activity
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Harmonic Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Paradigm | Seed |
Market signals
Structured signals derived from secondary market and firmographic data.
- Aug 21, 2026
Monthly visitors grew 97% MoM, reaching 1.9K.
- Jun 24, 2026
Monthly visitors grew 384% MoM, reaching 1.1K.
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Recent news
Latest coverage and updates
- identified_as_competitor_ofOct 27, 2026
Harmonic is a block-building client that reportedly covers more than 30% of Solana’s validator stake and competes directly with Jito Labs, Inc. in Solana block building.
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Harmonic Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Frequently Asked Questions
Common questions about Harmonic's valuation, stock price, and market status.
Is Harmonic a public or private company?
Harmonic is a private company.
What is the current stock price of Harmonic?
Harmonic is a private company, so its shares have no public market price. Caplight tracks Harmonic's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Harmonic worth (valuation)?
Valuation information for Harmonic is not publicly available.
Can I buy Harmonic stock?
Harmonic shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Harmonic's last funding round?
Harmonic's most recent funding round was Seed on November 5, 2025.
Who are the main investors in Harmonic?
Key investors in Harmonic include Paradigm.
Will Harmonic IPO soon?
No public IPO plans have been announced for Harmonic.
How can I track Harmonic secondary market activity?
Caplight tracks bids, offers, and trades in Harmonic's shares on secondary markets.