Periodic Labs
periodic.com
Actively hiring
AI for Science
AI Research Labs
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Overview
News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Total raised
$300.7M
3 rounds on record
Latest round
$300M
Venture round · Oct 2025 · 12 mo ago
Team
30
US Form 5500 (plan participants) · Dec 2025
Hiring now
32
+5 posted in 30 days
Backers
13
Radical Ventures, Andreessen Horowitz
The money's age
Due for its next round
12 months since the last round · and hiring
Momentum
21/100
hiring for its size, in the news
Last sign of life
this month
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Oct 1, 2025
Raised a round Venture round $300M · SiliconANGLE
2025
Founded
Mar 31, 2021
Raised a round Venture round $452k · SEC Form D
Oct 30, 2019
Raised a round Venture round $209k · SEC Form D
Tractionpublic signals, read monthly
Web presence
top 6%
of 133.2M domains by links, Common Crawl
Hacker News stories
6
best: 8 points
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Venture round | Oct 2025 | $300M | — | SiliconANGLE |
| Venture round | Mar 2021 | $452k | — | SEC Form D |
| Venture round | Oct 2019 | $209k | — | SEC Form D |
Registers and programsofficial lists and records that name the company
| Legal entity | PERIODIC INC. | SEC Form D |
Founders and leadersfrom filings, registers and the company's site
Brad WislerExecutive Officer, DirectorSEC Form D
Christopher JonesExecutive Officer, DirectorSEC Form D
Backed byfrom the funds' portfolios and accelerator catalogs
Radical Ventures 
Andreessen Horowitz 
Abstract 
Accel 
Bain Capital Ventures 
Coral Capital 
CRV 
Felicis 
Lightspeed Venture Partners 
Scribble Ventures 
SV Angel Investors in similar startupsfunds that back the companies most like this one
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How Periodic Labs hires
Truth index
B 70/100
Ghost roles
50%
Stale roles
0%
Reposted roles
0%
Periodic Labs scores B on the Alion truth index (A is best, E worst), measured over 32 open roles re-checked against its own hiring board: 50% look like ghost listings, 0% have gone stale and 0% are the same role posted again. It measures how much of what this employer publishes turns into a real, finite search - not the employer as a workplace. How the index is computed
News
AI Infrastructure at Periodic - Periodic Labs
The training, inference, and sandboxing infrastructure behind Periodic Neon and how we make scientific AI efficient at scale.
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Report
Nature Is Our Learning Environment - Periodic Labs
Scientific midtraining and reinforcement learning on our lab data make Periodic Neon the Pareto-optimal model for challenging XRD analysis.
Read more
Report
Building Labs that Learn - Periodic Labs
Introducing Periodic Neon, a 1T-parameter model that we post-trained to analyze experimental results and deployed to our physical labs. This is a step towards putting autonomous discovery into the hands of scientists.
Read more
Report
Periodic Labs raises $300M to accelerate scientific research with AI
Periodic Labs raises $300M to accelerate scientific research with AI - SiliconANGLE
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Report
ChatGPT co-creators launch Periodic Labs, a new AI-driven scientific discovery platform, bringing together over 20 former researchers from Meta, OpenAI, and DeepMind
Periodic Labs, a scientific research startup, has completed its seed stage and is aiming to automate scientific discovery. The company has received $300 million in funding from venture capital firm Andreessen Horowitz and others. Periodic Labs https://per
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Report
Tech stack
Technologies named in job postings at Periodic Labs over the last 12 months, by layer, with the share of postings for each.
Technologies in use
40
Postings analysed
20
Stack modernity
64/100AI adopter
Languages
Python30%
C++10%
Julia10%
Fortran5%
Frameworks & libraries
FSDP5%
JAX5%
Megatron-LM5%
NumPy5%
Cloud & platforms
vLLM5%
AI & ML
LLM30%
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Full Periodic Labs tech stack
40 technologies · by team · pay by technology · changes · similar stacks
Salary insights
Compensation ranges based on this company's open jobs
Median
$325k
Typical range
$124k – $450k
Open positions
27
12
Jobs
Junior
8.3%
Middle
25%
Senior
50%
Architect
16.7%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Junior | 1 | $124k | $124k |
| Middle | 3 | $300k | $130k – $350k |
| Senior | 6 | $313k | $165k – $350k |
| Architect | 2 | $388k | $325k – $450k |
Highest paying role
Head of People
$450k
Normalized to USD per year
All salaries at Periodic Labs
By role, level and city, against the market · 27 jobs with pay
People
Brad Wisler
Executive Officer, Director
Christopher Jones
Executive Officer, Director
Phillip Trotzke
Director
Nealesh Patel
Director
Ken Green
Director
Kyle Jackson
Director
Don Courtney
Director
Teri Willey
Director
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data
Growth
Hiring Momentum
37/100
Slowing
Open positions
31
2 opened / 0 closed in 30 days
Median time-to-fill
51 days
faster than 26% of the market
ATS activity
Every ~4 hours
Today
Hiring Dynamics
0%
Hiring Focus
The percentage next to each role is its share of the company's job openings over the last 90 days; the arrow shows the shift versus the previous period.
AI/ML
16%
Data Science
16%
Field & Service
16% ▼
Industrial Engineering
16% ▲
HR
11% ▼
Operations
11% ▲
Activity Timeline
Added Photolithography to stack
Oct 2026
Added ALD to stack
Oct 2026
Added LIMS to stack
Oct 2026
Added PVD to stack
Oct 2026
Added FMEA to stack
Oct 2026
Added Git to stack
Oct 2026
Added CI/CD to stack
Oct 2026
Removed Windows from stack
Sep 2026
Added Machine Learning to stack
Sep 2026
Added Windows to stack
Sep 2026
Offices
Where the company hires and what each office is for
Cities
3
Hiring now
2
Countries
2
Busiest office
Menlo Park
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Headquarters
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San Francisco
United States
HQ
Menlo Park
United States
Plant / site
31 open roles 19 posted in 90 days 52% engineering 200-500 est. staff $297k Avg Salary
hires for AI/ML, Science & Research, Field & Service
Montreal
Canada
1 open roles 100% engineering 10-50 est. staff $350k Avg Salary
hires for AI/ML
Jobs
$200k – $250k per year · In office · Full-Time · Bachelor's Degree · Menlo Park
Python
CI/CD
Git
Life Sciences
LIMS
Apply
$225k – $350k per year · In office · Full-Time · Bachelor's Degree · Menlo Park
Reinforcement Learning
Apply
$250k – $350k per year · In office · Full-Time · Bachelor's Degree · Menlo Park
Knowledge Distillation
Synthetic Data
Pre-training
Model Distillation
Apply
$250k – $350k per year · In office · Full-Time · Bachelor's Degree · Menlo Park
Python
C++
Julia
JAX
PyTorch
TPU
Apply
$250k – $350k per year · In office · Full-Time · 4+ years exp · PhD · Menlo Park
LLM
Apply
$200k – $250k per year · In office · Full-Time · PhD · Menlo Park
Python
LIMS
Apply
$220k – $300k per year · In office · Full-Time · Master's Degree · Menlo Park
Photolithography
PVD
ALD
Apply
$250k – $350k per year · In office · Full-Time · Bachelor's Degree · Menlo Park · Montreal
Reinforcement Learning
LLM
Post-training
Apply
$250k – $350k per year · In office · Full-Time · Bachelor's Degree · Menlo Park
Python
C++
Julia
Fortran
Machine Learning
Apply
$250k – $350k per year · In office · Full-Time · 5+ years exp · Bachelor's Degree · Menlo Park
Python
Apply
$250k – $350k per year · In office · Full-Time · 5+ years exp · Bachelor's Degree · Menlo Park
Apply
$250k – $350k per year · In office · Full-Time · Bachelor's Degree · Menlo Park
Python
SciPy
NumPy
LLM
Apply