Defined.ai

Ethical AI training-data marketplace — 1.6M+ contributors across 150+ countries and 500+ languages, used by Adobe, Amazon, Google, Meta, OpenAI.

AI Training AI Training Data / Machine Learning
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Seattle, WA, USA HQ
100 employees
2015 founded

What is Defined.ai?

Defined.ai (formerly DefinedCrowd, rebranded 2021) is a Seattle-headquartered AI training-data marketplace founded in 2015 by Daniela Braga, PhD, with an R&D center in Lisbon, Portugal. The platform combines an ethically-sourced two-sided marketplace — 1.6M+ contributors spanning 150+ countries and 500+ languages, dialects, and locales — with custom services for data collection, annotation, evaluation, machine translation, conversational AI, and the Accelerat.ai multilingual agent product. Off-the-shelf and custom datasets are delivered across audio, image, video, text, and multimodal formats via API. Customers include Adobe, Amazon, Google, McAfee, Meta, and OpenAI. Compliance: ISO 27001, ISO 27701, ISO 42001, GDPR, and HIPAA. Two paths exist for individuals: full-time roles posted at https://definedai.applytojob.com/apply and crowd-contributor work via the company's contributor platform.

Mission & values

Empower AI builders with the world's largest ethical AI training-data marketplace — high-quality, fairly-sourced datasets and expert services across every modality and language.

Qualifications

Two engagement paths: (1) Full-time employee roles — currently 3 open, all 100% remote: AI/ML Sales Executive (US Enterprise), Computational Linguist (Spanish — LATAM), and Computational Linguist (Spanish — Spain). Glassdoor reports full-time pay around $50/hr in Seattle and $56/hr US average overall, with Linguist roles typically $25–$43/hr. (2) Crowd contributor work — paid project-based work in data annotation, transcription, audio recording, evaluation, translation, and similar tasks. Contributors are independent and join through Defined.ai's contributor platform; project rates vary by language, complexity, and locale. Eligibility: 18+, native or fluent in target language, reliable internet.

Leadership

D

Daniela Braga, PhD

Founder & CEO

Linguist and engineer with 25+ years in AI; World Economic Forum Global Innovator; appointed to the U.S. NAIRR Taskforce advising on national AI strategy.

Hiring process

  1. 1

    Apply at definedai.applytojob.com

    Full-time roles: submit application via the JazzHR-style portal. For crowd-contributor work, sign up via the Neevo app (the consumer brand of Defined.ai).

    About 1 day

  2. 2

    Recruiter screen

    Initial conversation about role and background.

    About 5 days

  3. 3

    Hiring manager interview

    Deep dive on role specifics.

    About 5 days

  4. 4

    Skills / language assessments

    Linguist roles include language-pair tests; technical roles include relevant skill assessments.

    About 5 days

  5. 5

    Offer

    Compensation discussion and onboarding.

    About 3 days

Funding

StageSeries B
Total raised$63,400,000
Investors
Evolution Equity Partners Sony Innovation Fund Amazon Alexa Fund Portugal Ventures Busy Angels

Awards & recognition

  • Forbes AI 50

    Forbes

  • Deloitte Fast 100

    Deloitte

  • Inc. 5000 / Inc. 500

    Inc.

  • Visionary Leadership Award (CEO Daniela Braga)

    Puget Sound Business Journal

  • World Economic Forum Global Innovator (CEO Daniela Braga)

    World Economic Forum

Company information

Frequently asked questions

Who founded Defined.ai?
Daniela Braga, PhD founded Defined.ai (originally DefinedCrowd) in 2015. The company rebranded to Defined.ai in 2021. Headquartered in Seattle with an R&D center in Lisbon.
How big is the contributor network?
1.6M+ contributors spanning 150+ countries and 500+ languages, dialects, and locales.
What customers does Defined.ai serve?
Adobe, Amazon, Google, McAfee, Meta, and OpenAI.
What's the difference between Defined.ai and Neevo?
Defined.ai is the parent enterprise data company. Neevo (neevo.ai) is the consumer-facing contributor app — both are listed in this directory.
How is Defined.ai funded?
$63.4M total raised: $1.1M seed (Sony Innovation Fund, Amazon Alexa Fund, Portugal Ventures, Busy Angels) + $11.8M Series A (Evolution Equity Partners) + $50.5M Series B — at the time the largest Series B raised by a woman founder in the US.

Stay in the loop.

One email per week, 5 hand-picked roles.