About
AfterQuery is an applied research lab that curates data solutions for frontier foundation model development. They capture expert thinking and structure it into training data, including supervised fine-tuning datasets, reinforcement learning rubrics, agent environments, and computer use trajectories. AfterQuery serves AI researchers and enterprises looking to build models that can reason and solve problems like real-world experts.
Key facts
At-a-glance profile data
- Website
- afterquery.com
- Headquarters
- San Francisco, United States
- Founded
- 2023
- Employees
- 136
- Total funding
- $31M (Funding Round)
- Business model
- B2B
Funding rounds
| Date | Round | Amount | Post-money | Lead investors |
|---|---|---|---|---|
| 1 Sept 2026 | Funding Round | Undisclosed | - | - |
| 9 Apr 2026 | Series A | $30M | $300M | Altos Ventures |
| 18 Mar 2025 | Undisclosed round | $500K | - | Y Combinator |
Tech stack
Detected on afterquery.com, last scanned 26 Sept 2026. Run your own scan
- Frontend
- Next.js, Tailwind CSS
- CDN
- Vercel
- Email provider
- Google Workspace
Frequently asked
How much funding has AfterQuery raised?
AfterQuery has raised a total of $31M in funding. The most recent round on record is Funding Round.
How many employees does AfterQuery have?
AfterQuery has approximately 136 people on record.
MosaicML
AfterQuery provides high-quality, human-generated data for AI foundational models, while Databricks, through MosaicML, offers a generative AI platform for enterprises to build, train, and customize their own AI models, both competing for th
Alteryx Analytics Automation Platform
AfterQuery curates data solutions for frontier foundation model development, and Alteryx provides a platform for unified analytics, data science, and process automation, both aiming to provide structured data and insights for businesses.
ServiceNow AI Platform
AfterQuery focuses on curating expert thinking into training data for AI models, while ServiceNow offers an AI platform to streamline enterprise workflows, both addressing the need for improved AI capabilities within large organizations.
AI Research Labs
Anthropic is a leading AI lab that would benefit from AfterQuery's specialized, human-generated datasets and reinforcement learning environments to train and evaluate their frontier AI models, as AfterQuery claims to power every leading AI
AI Research Labs
Google DeepMind, a prominent AI research organization, could utilize AfterQuery's curated data solutions to enhance the reasoning and problem-solving capabilities of their advanced AI models.
AI Research Labs
OpenAI, a key player in AI development, would be an ideal client for AfterQuery's high-quality training data and evaluation environments, which are crucial for advancing frontier AI models.
AI Research Labs
Meta Superintelligence Labs, focused on cutting-edge AI research, would find AfterQuery's expert-generated datasets valuable for training models that require nuanced understanding and real-world professional expertise.
Enterprise AI Teams
Microsoft AI, developing and deploying AI across various products, could leverage AfterQuery's specialized datasets to improve the performance and reasoning abilities of their enterprise-level AI applications.
Confirmed customer relationships for AfterQuery. Speculative buyer-fit guesses are not shown.

