micro1
micro1.ai
Actively hiring
Hires worldwide
HR & Recruiting AI
AI Evaluation & Observability
Freelance & Talent Marketplaces
AI Training Data & Annotation
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News
Technologies
Salaries
Products
People
Growth
Offices
Jobs
Financials
Funding and backers
Total raised
$38.3M
2 rounds on record
Latest round
$35M
Venture round · Sep 2025 · 13 mo ago
Team
43
US Form 5500 (plan participants) · Dec 2025
Hiring now
119
+93 posted in 30 days
Backers
5
Antler, 01 Advisors
The money's age
Due for its next round
13 months since the last round · and hiring
Momentum
46/100
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
Sep 13, 2025
Raised a round Venture round $35M · The Tech
Oct 24, 2023
Raised a round Venture round $3.3M · Pulse 2.0
Jan 2023
Website went live first capture in the Wayback Machine
Tractionpublic signals, read monthly
Web presence
top 0.79%
of 133.2M domains by links, Common Crawl
Hacker News stories
3
best: 4 points
Funding rounds
Backed byfrom the funds' portfolios and accelerator catalogs
Investors in similar startupsfunds that back the companies most like this one
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Visa sponsorship
9 ▲ 350%
H-1B filings in 12 months
$168k
Median offered salary
0
Open roles in United States
Who they sponsor
Software developers
3
Other computer occupations
2
Data scientists
1
In the register as MICRO1 INC., Palo Alto, CA (+1 more)
Other sponsors in the same field
Paraform 
Hume 
Sigma
Alert me
US Department of Labor · latest filing Jun 23, 2026 · Visa details by country
Overview
micro1 is a US AI data company based in Miami that supplies frontier AI labs with expert-generated training data, model evaluations and reinforcement-learning environments, drawing on a network of vetted specialists. Its offerings include Intelligence Realm for frontier evaluations, Cortex for monitoring and improving agentic AI, and expert-demonstrated data for robotics labs, and it grew out of a service that matched companies with pre-vetted remote software developers. It recruits PhD and MSc domain experts in STEM, medicine, law and engineering as contract AI trainers, alongside software and ML engineers, attorneys, recruiters and partnership managers.
Connections
List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors
The Venture Reality FundVia a fund
01 AdvisorsVia a fund
Javelin Venture PartnersVia a fund
Activant CapitalVia a fund
AntlerVia a fund
1084 portfolio companies
Click a company to open it. Dashed lines are likely connections. The second step of the network is part of the Pro plan.
Owner
Same company
Same group
Likely
News
Sep 15, 2026 Human artificial intelligence starts with knowing what you want to do Read more
Read more
Report
Little-known AI startup Micro1 tries to trump Google's bid for banrkupt Spirit Airlines' data
Micro1's $12.5 million offer for Spirit Airlines' data highlights the growing market for corporate records used to train AI.
Read more
Report
Selling your company's data
Micro1 pays companies for their operational data and workflows to train AI. CEO Ali Ansari.
Read more
Report
micro1 hiring 10,000 worldwide to label robot training videos
California-based micro1 is hiring 10,000 people globally to train robots by reviewing and labeling task videos, offering up to $90/hour with no prior AI experience required.
Read more
Report
Micro1 Wants Human Domain Experts To Profit From AI And LLMs
Much like the ecosystem of life that surrounds a blue whale, a market of AI SaaS vendors is springing up around the biggest AI companies. And AI data startup Micro1 is emblematic of the shifting nature of these early-stage AI vendors. The company began in
Read more
Report
AI data startup Micro1 reaches $500M gross run rate amid AI training boom
Surging demand for AI training data is driving rapid growth for the startup and its rivals.
Read more
Report
AI startup Micro1 wants to challenge Google's winning bid for Spirit Airlines data with a higher offer
AI training startup Micro1 is making a late $12.5 million bid for Spirit Airlines' data, testing whether it can disrupt Google's winning deal.
Read more
Report
Show more news
Tech stack
Technologies named in job postings at micro1 over the last 12 months, by layer, with the share of postings for each.
Technologies in use
99
Postings analysed
60
Stack modernity
77/100AI adopter
Languages
Python38%
SQL12%
TypeScript7%
C++7%
JavaScript5%
Java3%
Node JS3%
Rust3%
Frameworks & libraries
React.js3%
Scikit-learn3%
Cypress2%
Dagster2%
FastAPI2%
Flink2%
Hadoop2%
LangChain2%
Databases
Snowflake3%
Amazon Redshift2%
Google BigQuery2%
PostgreSQL2%
Cloud & platforms
AWS7%
Azure5%
GCP5%
GitHub5%
Figma3%
Linux3%
Bioconductor2%
Databricks2%
Developer tools
Cursor5%
Copilot3%
GraphQL3%
Microsoft Excel3%
SolidWorks3%
Claude Code2%
Fusion 3602%
Rest API2%
AI & ML
LLM5%
Practices & domains
Machine Learning28%
AI Agents23%
Reinforcement Learning8%
Agentic Workflows7%
Human-in-the-Loop7%
CI/CD5%
ETL/ELT5%
Synthetic Data5%
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Salary insights
Compensation ranges based on this company's open jobs
Median
$275k
Typical range
$60k – $800k
Open positions
50
25
Jobs
Intern
4%
Junior
8%
Middle
12%
Senior
24%
Staff
48%
Architect
4%
| Level | Jobs | Median | Typical range |
|---|---|---|---|
| Intern | 1 | $160k | $160k |
| Junior | 2 | $245k | $90k – $400k |
| Middle | 3 | $220k | $220k – $300k |
| Senior | 6 | $180k | $120k – $180k |
| Staff | 12 | $550k | $400k – $800k |
| Architect | 1 | $500k | $500k |
Highest paying role
Member of Technical Staff, Finance Research
$800k
Normalized to USD per year
All salaries at micro1
By role, level and city, against the market · 50 jobs with pay
Growth
Hiring Momentum
78/100
Scaling fast
Open positions
117
87 opened / 0 closed in 30 days
Median time-to-fill
59 days
faster than 23% of the market
Hiring Dynamics
+8700%
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
21% ▼
Legal
21% ▲
Backend
9% ▼
Industrial Engineering
5% ▼
Science & Research
5% ▲
Data Science
4% ▲
Actively hiring for Legal (+29 in 30 days)
Activity Timeline
Added Agile to stack
Oct 2026
Added Google BigQuery to stack
Oct 2026
Added ETL/ELT to stack
Oct 2026
Added dbt to stack
Oct 2026
Added Databricks to stack
Oct 2026
Added Dagster to stack
Oct 2026
Added Amazon Redshift to stack
Oct 2026
Added Salesforce to stack
Oct 2026
Added Selenium to stack
Oct 2026
Added Pytest to stack
Oct 2026
Added Playwright to stack
Oct 2026
Added Cypress to stack
Oct 2026
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
Miami
United States
HQ
10-50 est. staff
Jobs
$100k – $180k per year · Remote (location not specified) · Contractor
Prompt Engineering
LLM
Red Teaming
Machine Learning
Apply
Apply
$280k – $450k per year · Remote (likely United States) · Full-Time
Python
SQL
Snowflake
Databricks
Google BigQuery
Amazon Redshift
AI/ML
Dagster
dbt
AI Agents
Analytics
ETL/ELT
Apply
Apply
$320k – $500k per year · Remote (likely United States) · Full-Time
AI Agents
DevOps
GCP
Azure
CI/CD
AWS
Platform Engineering
Apply
$260k – $400k per year · Remote (likely United States) · Full-Time
AI Agents
Agentic Workflows
DevOps
CI/CD
QA
Selenium
Cypress
Playwright
Pytest
Apply
Remote (location not specified) · Contractor
Python
Machine Learning
Apply
$50k – $90k per year · Remote (likely United States) · Contractor
AI Agents
Apply
Remote (location not specified) · Contractor
Python
Machine Learning
Apply
Apply
Apply
$400k – $800k per year · Remote (likely United States) · Full-Time
Python
SQL
AI Agents
Apply