Micro1
micro1.ai
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AI Training Data & Annotation
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Funding and backers
Total raised
$38.3M
2 rounds on record
Latest round
$35M
Venture round · Sep 2025 · 12 mo ago
Team
43
US Form 5500 (plan participants) · Dec 2025
Hiring now
1
+1 posted in 30 days
Backers
4
01 Advisors, Activant Capital
The money's age
Due for its next round
12 months since the last round · and hiring
Momentum
28/100
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
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
01 Advisors 
Activant Capital 
Javelin Venture Partners Similar startupsby what they do, their industry and backers
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Location-Based | Training Data | Model Evaluation | Data Annotation.
News
Sep 15, 2026 Human artificial intelligence starts with knowing what you want to do Read more
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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.
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Selling your company's data
Micro1 pays companies for their operational data and workflows to train AI. CEO Ali Ansari.
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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.
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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
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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.
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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.
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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
4
Postings analysed
2
Stack modernity
80/100
Languages
Python
Cloud & platforms
GitHub
Developer tools
Cursor
GraphQL
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Growth
Hiring Momentum
44/100
Stable
Open positions
1
0 opened / 1 closed in 30 days
Median time-to-fill
60 days
faster than 25% of the market
Hiring Dynamics
+100%
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.
Backend
50% ▼
Finance
50% ▲