Afterquery logo
AI/ML
Data/Analytics

Afterquery

AI foundation models & expert datasets

San Francisco· 37 rolesUS· 1 role · RemoteSan Francisco· 1 role · Remote

CORE INFO

$30M
Total Funding
Series A
Round
2025
Founded
51-200
Team Size
San Francisco, CA
Headquarters

AfterQuery is a San Francisco-based research lab that specializes in creating expert-level datasets and reinforcement learning environments to enhance AI model development. Their solutions cater to industries like finance, medicine, law, and engineering, helping AI systems perform complex reasoning tasks.

  • AfterQuery raised $30 million in a Series A funding round led by Altos Ventures, achieving a $300 million valuation.businesswire.com
  • The company collaborates with approximately 100,000 domain experts to translate human intuition into structured training data for AI models.businesswire.com
  • AfterQuery surpassed a $100 million annual revenue run rate within 14 months of its founding.businesswire.com

WHY WE WOULD WORK AT AFTERQUERY

Innovative AI Mission

Join a team dedicated to teaching machines human-like expertise, focusing on better thinking over more data.

Collaborative Team Culture

Work with a diverse group of experts in a supportive environment that values collaboration and innovation.

Competitive Compensation

Benefit from a Series A funded company with a $300 million valuation, offering attractive salary packages.

Rapid Career Growth

Be part of a fast-growing company that achieved a $100 million revenue run rate within 14 months.

Cutting-Edge Technology

Engage with advanced AI models and expertly curated datasets to push the boundaries of AI capabilities.

Impactful Industry Partnerships

Collaborate with leading AI labs and tech companies, contributing to projects that shape the future of AI.

MARKET AND TRACTION

GROWTH TACTICS

  • AfterQuery focuses on capturing and structuring expert reasoning into training datasets, enabling AI systems to perform complex tasks with human-like expertise.

  • The company collaborates with leading AI research labs and technology companies, providing specialized datasets and reinforcement learning environments to enhance AI model performance.

  • By encoding, evaluating, and scaling human expertise, AfterQuery aims to make it accessible and actionable for AI systems.
  • KEY METRICS

    ✦ KEY METRIC
  • Raised $30 million in Series A funding at a $300 million valuation.

  • Surpassed $100 million in annual revenue run rate within 14 months of founding.
  • NOTABLE CUSTOMERS

  • Collaborates with leading AI research labs and technology companies, providing them with specialized datasets and reinforcement learning environments.
  • COMPETITIVE ADVANTAGE

  • Specializes in creating high-quality, human-generated data that captures expert reasoning and decision-making processes.

  • Emphasizes training AI on better thinking rather than more data, setting it apart in the AI foundation model space.
  • SERVICES

  • Offers supervised fine-tuning datasets, reinforcement learning frameworks, agent environments, and computer use trajectories.

  • Serves industries requiring advanced AI capabilities, including finance, medicine, and law.
  • PRODUCT AND TECH

    Supervised Fine-Tuning Datasets

    These datasets are meticulously curated to enhance AI models' performance by incorporating expert reasoning and decision-making processes. They enable AI systems to perform complex tasks with human-like expertise, crucial for industries requiring advanced AI capabilities.

    Reinforcement Learning Frameworks

    AfterQuery provides specialized frameworks that facilitate the development of AI models through reinforcement learning. These frameworks are designed to improve AI's decision-making abilities by simulating real-world scenarios and expert interactions.

    Agent Environments

    The company creates dynamic agent environments that simulate complex tasks, allowing AI models to learn and adapt in controlled settings. This technology is essential for training AI systems to operate effectively in diverse professional domains.

    Computer Use Trajectories

    By capturing and analyzing computer use patterns, AfterQuery develops datasets that reflect expert-level interactions with technology. This approach helps in fine-tuning AI models to better understand and predict user behavior.

    COMPANY CULTURE

    Values

  • Emphasize better thinking over more data

  • Prioritize encoding and scaling human expertise

  • Foster collaboration with leading AI research labs
  • Operating Principles

  • Focus on capturing expert reasoning and decision-making

  • Develop high-quality, human-generated datasets

  • Collaborate with technology companies to enhance AI models
  • Benefits

  • Opportunities to work with cutting-edge AI technologies

  • Collaborative environment with leading AI experts

  • Competitive compensation and benefits package
  • Learning & Growth

  • Access to ongoing training and development programs

  • Encouragement to explore innovative AI solutions

  • Support for professional growth and career advancement
  • Work Style

  • Flexible work arrangements to support work-life balance

  • Emphasis on teamwork and open communication

  • Agile methodologies to adapt to changing AI landscapes
  • COMPENSATION SNAPSHOT

    B-
    Comp score vs cohort
    vs. AI/ML · Series A · US
    Based on publicly available compensation ranges from job postings; exact compensation may vary.
    Engineering IC4n = 3
    $250K – $350Kmedian $300K
    Los Angeles / Bay Area
    G&An = 5
    $150K – $225Kmedian $188K
    Los Angeles / Bay Area
    Operationsn = 13
    $150K – $225Kmedian $188K
    Los Angeles / Bay Area
    Sales ICn = 3
    $150K – $250Kmedian $200K
    Los Angeles / Bay Area
    US-only in v1 · only categories with n > 2 shown · in-person / hybrid / remote treated separately where n ≥ 3

    HIRING SIGNAL

    39
    Open roles on their careers page
    Snapshot via live ATS poll
    —
    Net new roles in the last 90 days
    Available once weekly history accrues
    90-Day VelocityV2 · BACKFILL
    Trend builds weekly as historical rows accrue
    By Function
    Breakdown of open roles
    Data · 5
    GTM · 2
    Design · 3
    G&A · 2
    Product · 1
    Marketing · 4
    Operations · 10
    Engineering · 12
    Top Locations
    Where hiring is concentrated
    Remote-eligible postings counted separately
    San Francisco
    37
    US - Remote
    1
    San Francisco (Remote)
    1
    SourcesGreenhouseLeverAshbyWorkableSmartRecruitersRipplingRecruiteeFallback · Wellfound, YC Work-at-a-Startup, careers-page scrape

    KEY COMPANY ANNOUNCEMENTS

    Filter
    14 announcements · ranked by importance
    Sep 1, 2026FUNDINGAfterQuery Becomes YC’s Fastest Unicorn At $3.2 Billionforbes.com
    Apr 9, 2026FUNDINGAfterQuery Raises $30 Million Series A Round at $300 Million Valuationvcaonline.com
    Mar 1, 2025FUNDINGAfterQuery - $500K Seedstartupintros.com
    Sep 2, 2026MILESTONESep 2026: YC Partner Calls AfterQuery Its Fastest Unicornyoutube.com
    Apr 9, 2026FOUNDER PROFILEThis 23 Year-Old’s New AI Data Company Has Already Hit A $100 Million Run Rateforbes.com
    Apr 9, 2026FUNDINGAfterQuery Raises $30 Million Series A Round at $300 Million Valuationbusinesswire.com
    Oct 20, 2025ESSAYThe AfterQuery Thesis - AfterQueryafterquery.com
    Aug 30, 2026CUSTOMER WINBuilding a Frontier Legal Evaluation in Partnership with Legora - AfterQueryafterquery.com
    Jul 2, 2026CUSTOMER WINHow AfterQuery Helped NVIDIA Hill-Climb GDPval - AfterQueryafterquery.com
    Apr 28, 2026CUSTOMER WINSolving the Last Mile Problem in Partnership with The Raine Group - AfterQueryafterquery.com
    Jan 1, 2025MILESTONELaunch YC: AfterQuery - High-quality AI starts with high-quality human data | Y Combinatorycombinator.com
    Jan 1, 2025MILESTONEAfterQuery: Applied research lab curating data solutions for foundation model… | Y Combinatorycombinator.com
    Apr 9, 2026ESSAYHuman expertise, reimagined - AfterQueryafterquery.com
    Nov 15, 2025PRODUCTExperts Launch // AfterQuery '25youtube.com