Flux
PrivateLast Round
Series B
Feb 27, 2026
Total Funding Raised
$39M
Company Overview
Flux operates in AI, Data & Cloud Infrastructure and is based in San Francisco, California. Its latest recorded funding round was a Series B round in February 2026.
Flux is a software company that provides a cloud-based, collaborative platform with an AI assistant for electronics design, including schematics, PCB layouts, and part sourcing.
Sector
AI, Data & Cloud Infrastructure
Verticals
Computing Hardware, Semiconductors
Business Model
B2B
Customer Profile
Subscription SaaS, Usage-Based SaaS
AI Layer
Application
Historical Pricing
Historical view of private secondary pricing and transaction trends.
Flux Comparables
Compare Flux with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Celus | 88% | |
| Trace | 82% | |
| Circuit Mind | 82% |
For institutional investors. Book with your work email.
Flux Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series B | Feb 27, 2026 | ||||
| Seed | Oct 13, 2021 |
For institutional investors. Book with your work email.
Key People
Founding team and executive leadership
For institutional investors. Book with your work email.
Flux Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| Bain Capital Ventures | Seed, Series B |
| 8VC | Seed, Series B |
| Liquid 2 Ventures | Seed, Series B |
| Outsiders Fund | Series B, Seed |
Market signals
Structured signals derived from secondary market and firmographic data.
- Mar 13, 2026
Launched the Stackup Editor to streamline PCB stackup selection.
- Jan 28, 2026
Added adimpact, an Advertising Intelligence SMB, as a customer.
For institutional investors. Book with your work email.
Recent news
Latest coverage and updates
- launchesSep 25, 2026
Flux has introduced a feature that produces 3D printable enclosures directly from users’ PCB layouts, with the capability included in all plans.
For institutional investors. Book with your work email.
Flux 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.
Book a demoFor institutional investors. Book with your work email.
Frequently Asked Questions
Common questions about Flux's valuation, stock price, and market status.
Is Flux a public or private company?
Flux is a private company.
What is the current stock price of Flux?
Flux is a private company, so its shares have no public market price. Caplight tracks Flux's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is Flux worth (valuation)?
Valuation information for Flux is not publicly available.
Can I buy Flux stock?
Flux shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was Flux's last funding round?
Flux's most recent funding round was Series B on February 27, 2026.
Who are the main investors in Flux?
Key investors in Flux include 8VC, Outsiders Fund.
Will Flux IPO soon?
No public IPO plans have been announced for Flux.
How can I track Flux secondary market activity?
Caplight tracks bids, offers, and trades in Flux's shares on secondary markets.