Positron

Positron designs and supplies purpose-built hardware and software systems for accelerating inference of transformer-based models used in generative AI workloads.

Latest funding

$875M Series B+ · September 10, 2026

Led by Andra Capital · Source: prnewswire.com

Total raised: $1.18B across 4 sourced rounds

All 4 rounds ↓

Website: positron.ai.

X: @positron_ai · 2,396 followers.

GitHub: SemiAnalysisAI.

LinkedIn: positron-ai.

Categories: Foundation models and research AI infrastructure and compute Robotics and hardware.

Sectors: AI Infrastructure, Artificial Intelligence (AI), Information Technology, Semiconductor.

Stage: Series B+.

Based in: Reno, United States.

Total raised: $1.18B in 4 sourced rounds.

Last round: Sep 10, 2026 · 66 days ago.

Headcount: 11–50 employees.

On Recent Funding since: Sep 29, 2026.

Signals

X account@positron_ai · created Aug 9, 2023 (3 years old) · 2,396 followers

Website registeredNov 4, 2018 (8 years old)

About Positron

Its products include an inference appliance and AI inference accelerator silicon. Positron's customers are enterprise and cloud teams who deploy large language models and other AI applications.

TIMELINE · MONEY RAISED

Positron | 552 days from X account to first raise on record

@positron_ai·Raised $1180M in 4 sourced rounds·1 signal before the first raise

Money raised, round by round (amounts linked to their source). Pins are dated signals; hover the icons for dates.

Funding rounds

Date	Round	Amount	Lead	Source
Sep 10, 2026	Series B+	$875M	AAndra Capital	prnewswire.com
Feb 4, 2026	Series B+	$230M	AArena Private Wealth	techcrunch.com
Jul 28, 2025	Series A	$51.6M	AAtreides Management	venturebeat.com
Feb 11, 2025	Seed	$23.5M	FFlume Ventures	businesswire.com

Timeline

August 9, 2023
X account created
November 4, 2018
Website created

Founders and team

BW
Barrett Woodside Founder

@exploreml · LinkedIn
EK
Edward Kmett Founder

LinkedIn
TS
Thomas Sohmers Founder

@trsohmers
MA
Mitesh Agrawal CEO

Investors

Companies like Positron

FFuriosaAI$620M Series B+ · Oct 2026
FFireworks AI$1.5B Series B+ · Jul 2026
EEridu$200M Series A · Mar 2026
PPsiQuantum$1B Series B+ · Sep 2025
Ccimicro.aiSeed · May 2026
SSimplismartSeries B+ · Aug 2026

Other companies backed by Andra Capital

SSkild AI$1.4B Series B+ · Jan 2026

Andra Capital portfolio →

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/positron (get a free API key).