UTC+0
Overview
Defined.ai, with more than 9 years of experience, stands as the world’s premier ethical AI data marketplace, offering both off-the-shelf and custom AI training datasets. Their platform ensures ethically sourced, bias-aware, high-quality data, fortified by robust quality control and transparent practices. Trusted globally, they empower responsible AI development with scalable solutions and expert support.
Founded 2015
Company Size: 51-200
Avg. Hourly Rate: $50/hr - $99/hr
Min. Project Size: $10,000
Specialties
Big Data
Speech Technology
AI Data
LLM Fine-tuning
Custom AI Data Collection and Generation
Crowd-as-a-Service
Artificial Intelligence
Natural Language Processing
Data Science
Generative AI
Machine Learning
Computer Vision
Team Experience
1-2 Years:
26.8%
3-5 Years:
34.5%
6-10 Years:
19.6%
1 Year:
17.3%
10 Years+:
1.8%
Median Employee Tenure:
3.7 years
Employee Growth in last 1 year:
4%
Company Offerings
Services
AI and Machine Learning
Big Data Analytics and BI
Chatbot Development
API Development
Industries Served
Banking
E-commerce & Retail
Insurance
Telecommunications
Technical Expertise
Tech Stacks
Python
Java
Node.js
C#
C
Tools
Git
Microsoft SQL Server
Skills & Expertise
Artificial Intelligence
Software Development
Highlights
Top Tech Stacks
Python
Java
C#
Node.js
C
Projects
Inclusive ASR Models: Using High-Quality, Ethical Data
Speech / NLP
ClientConfidential
Platforms
Key Features
- Ethically sourced spontaneous speech
- Diverse demographic representation
- High-quality annotations
- Metadata transparency
Outcome
WER reduced from ~5–8 % down to 0–2 % across five locales, improving performance and fairness (defined.ai)
Theseus AI Cuts WER by 90 %
Finance / Speech
ClientTheseus AI
Platforms
Key Features
- Domain-specific fine tuning
- Curated financial speech audio
- High volume annotated data
Outcome
WER dropped from ~18 % to ~1.7 %, delivering high precision for financial ASR tasks (defined.ai)
Awards and Certifications
Forbes America's Best Startup Employers
Awarded By : Forbes
Forbes Best Startup Employers
Awarded By : Forbes
Technology Fast 500 North America
Awarded By : Deloitte
Forbes AI 50
Awarded By : Forbes
Location
Primary Development Center
Headquarter
Primary Development Center
Lisbon, Portugal
75+ employees
Headquarter
Seattle, United States of America
Company Profile Disclaimer
The company profile information provided in this website is entirely based on research and data obtained from
publicly available sources on the internet as of November
2025. While every effort has been made to ensure the accuracy and reliability of the
information, we cannot guarantee its comprehensiveness. All the company information is for informational purposes
only. We strongly advise conducting further due diligence before making any business decisions.
