What Defined.ai does

Defined.ai (legal entity DefinedCrowd Corporation) is a Seattle-headquartered AI training data platform founded in 2015 by Daniela Braga, PhD. Its core offering is what the company characterizes as the world's largest ethical AI data marketplace, with 817+ pre-curated datasets across audio, image, video, text, and multimodal formats, supplied through an API and complemented by six service pillars: data collection (via the proprietary Neevo crowd platform spanning 1.6M+ vetted contributors across 150+ countries and 500+ languages), model-in-the-loop data annotation, machine translation across 100+ language pairs, conversational AI solutions, and end-to-end data and model evaluation including RLHF/DPO, RAG evaluation, and red-teaming. The platform is differentiated by a triple ISO certification stack (ISO 42001, ISO 27001, ISO 27701) plus GDPR and HIPAA compliance, and a human-in-the-loop plus model-in-the-loop annotation pipeline backed by multi-layer validation.

The company operates a hybrid distribution model: a self-serve marketplace and API for off-the-shelf datasets, paired with a field-sales motion for custom enterprise collection, annotation, and evaluation engagements priced on a quote basis with multi-year contracts for bespoke work and pay-as-you-go for marketplace purchases. Customer segments span technology and AI companies (Adobe, Amazon, Apple, Google, Meta, Microsoft, OpenAI, McAfee), automotive and mobility (BMW, GM), financial services (Mastercard), healthcare (Genesys, Oura), media (Getty Images), robotics and embodied AI, and gaming. The Accelerat.ai subsidiary, backed by a €34.5M grant from the Portuguese government's 2021 Recovery and Resilience Plan, develops multilingual conversational AI covering six European languages and produced the Diana virtual assistant launched at Web Summit 2023. Distribution is augmented by strategic partnerships such as the June 2025 agreement with Crowdworks for South Korean market access.

Cumulatively, Defined.ai has raised over $85M across disclosed rounds spanning 2016 to 2022 (a $50.5M Series B in May 2020 and a roughly $15M round in January 2022 are the largest line items), maintains 101–250 employees, and operates a second office in Lisbon, Portugal alongside its Seattle headquarters. Revenue mechanics combine marketplace commissions on dataset transactions with professional services fees on custom collection, annotation, translation, and evaluation engagements; the company does not publicly disclose revenue or pricing.

Name

Defined.ai

Legal name

DefinedCrowd Corporation

Website

https://defined.ai

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

101–250 employees

Short description

Defined.ai operates the world's largest ethical AI data marketplace, offering 817+ off-the-shelf datasets plus custom data collection, annotation, translation, and model-evaluation services to large technology, automotive, financial-services, and healthcare enterprises via its Neevo crowd platform of 1.6M+ vetted contributors across 150+ countries.

Ownership category

akta.pro rank

Product category

AI Training Data

NAICS

Software Publishers (5132), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Software Publishers (513210), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518), Software Publishers (51321)

SIC

Services-Computer Programming, Data Processing, Etc. (7370), Services-Prepackaged Software (7372), Services-Computer Processing & Data Preparation (7374)

akta.pro primary industry

Enterprise AI Data & Knowledge Platforms (Vector Databases, Knowledge Graphs) (HDAEANAH)

akta.pro secondary industries

AI Observability, Monitoring & Evaluation Platforms (Drift, Quality, Safety) (HDAEANAF), AI/ML Engineering & Model Development Services (BPAEAHAF), Responsible AI, AI Governance & Compliance Services (BPAEAHAJ), Responsible AI, Security & Privacy Platforms (Safety, Guardrails, PII) (HDAEANAG)

Keywords

• AI training data
• Data annotation services
• AI data marketplace
• Multilingual data collection
• Conversational AI data

Headquarters

HQ city

Seattle

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. AI Data Marketplace: Two-sided marketplace enabling enterprises to discover, evaluate, and procure AI-related assets including datasets, evaluation tools, and specialized services. Revenue generated through dataset sales with transaction-based pricing.
2. Custom Data Collection Services: Bespoke data collection workflows across audio, image, video, text, and multimodal formats through proprietary Neevo platform. Enterprise-grade professional services with custom pricing based on scope, scale, and complexity.
3. Data Annotation Services: Model-in-the-loop annotation services for text, audio, image, and video data with expert human validation. Delivered at scale through global contributor network with quality guarantees.
4. Data and Model Evaluation Services: End-to-end evaluation services including A/B testing, red-teaming, RLHF, DPO, RAG evaluation, and benchmark development for AI systems across all modalities.
5. Machine Translation Services: Professional translation and MT post-editing services across 100+ language pairs, including native-quality human translation, paraphrasing, and reference translation for AI training datasets.
6. Conversational AI Solutions: Enterprise conversational AI data solutions supporting speech recognition, chatbots, and virtual assistants with full conversational stack support from data to deployment.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels5 records

Core offering

Defined.ai operates an AI training data marketplace offering 817+ off-the-shelf ethically sourced datasets across audio, image, video, text, and multimodal formats, complemented by enterprise professional services for custom data collection, model-in-the-loop annotation, machine translation, conversational AI data, and human-in-the-loop data/model evaluation. The platform is powered by the proprietary Neevo crowd network of 1.6M+ vetted contributors across 150+ countries and 500+ languages, with datasets delivered via API for integration into enterprise AI development pipelines.

Product overview

Defined.ai operates as an AI training data platform combining a marketplace model with expert services. The core offering is the world's largest AI data marketplace (Defined.ai AI Data Marketplace), which provides 817+ off-the-shelf ethically sourced datasets across audio, image, video, text, and multimodal formats delivered via API. This platform is complemented by six interconnected service pillars: Data Annotation Services (model-in-the-loop expert-verified labeling), Data Collection Services (global diverse data at scale), Machine Translation Services (100+ language pairs), Conversational AI Solutions (voice and chat AI), and Data & Model Evaluation Services (rigorous testing and benchmarking). The Accelerat.ai initiative represents a separate multilingual chatbot product backed by government funding, while AI Avatars & Voice Bots provides generative AI-powered avatar technology. The Crowd as a Service offering provides access to the underlying contributor network of 1.6M+ vetted global experts that powers all service offerings. Together, these products form an end-to-end ecosystem from data sourcing and annotation through evaluation and deployment.

Differentiator

Problem solved

Functional benefit

Brands

• Neevo: Proprietary crowd platform used for data collection and annotation workflows
• Accelerat.ai

Products and services

• Defined.ai AI Data Marketplace The world's largest AI data marketplace offering 817+ off-the-shelf ethically sourced datasets across audio, image, video, text, and multimodal formats for enterprise AI development, with advanced filtering, customization options, and API delivery.
• Data Annotation Services Model-in-the-loop, expert-verified data labeling for text, audio, image, video, and multimodal data, combining human expertise with automated quality checks to ensure accuracy, fairness, and transparency for enterprise AI training datasets.
• Data Collection Services Global, diverse AI training data collection across speech, audio, image, video, text, and multimodal formats using the Neevo platform with access to 1.6M+ vetted contributors across 150+ countries, with ethical sourcing and GDPR/HIPAA compliance.
• Machine Translation Services High-quality multilingual content services including native-quality human translation, machine translation post-editing (MTPE), paraphrasing, reference translation, and flexible evaluation methods across 100+ language pairs with multi-checkpoint quality assurance.
• Conversational AI Solutions End-to-end conversational AI data services supporting the full conversational stack from data collection through annotation to deployment, enabling natural, bias-free speech recognition, AI chatbots, and virtual assistants for real-world environments.
• Data & Model Evaluation Services Rigorous testing services including human-in-the-loop evaluation, adversarial testing, A/B testing, benchmark creation, RAG evaluation, RLHF/DPO optimization, and red-teaming for safety and bias detection across AI model lifecycles.
• Accelerat.ai A multilingual chatbot project backed by €34.5 million from Portugal's Recovery and Resilience Plan, covering European Portuguese, French, Spanish, Italian, German, and English for conversational AI in customer support automation across public and private sectors.
• AI Avatars & Voice Bots AI-powered avatars and voice bots that use generative AI to deliver realistic avatar-based virtual assistants for customer service and enterprise digital interactions.
• Crowd as a Service Access to a vetted global crowd of 1.6M+ experts spanning 150+ countries and 500+ languages to collect, annotate, and evaluate high-quality AI training data at scale with ethical sourcing and fair compensation.

Quantifiable outcome

• 25% increase in factual accuracy scores through human-in-the-loop evaluation
• +6 more outcomes

Named customers20 records

Segments6 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

AI capability11 records

Feature6 records

Partnerships

One partnership is on record.

• CrowdworkscoreChannel Partner/ Reseller/ Distributor · 17 June 2025Strategic partnership with South Korea-based Crowdworks to distribute Defined.ai datasets through Crowdworks' A1 data marketplace. This collaboration enables South Korean companies to access high-quality AI training data for developing more accurate, globally relevant AI solutions, representing a milestone in Defined.ai's international growth strategy and expansion into the South Korean AI market.

Scale indicators12 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Scale AI: Scale AI is the largest pure-play AI training data provider, offering data labeling, evaluation, and testing services across similar modalities (text, image, video, audio) to many of the same enterprise and frontier-AI customers. It directly competes with Defined.ai's annotation, RLHF/red-teaming, and government/defense contracts.
• Appen: Appen is a global training data vendor with a large crowdsourced contributor network and an off-the-shelf data marketplace, serving the same enterprise AI, automotive, and technology buyers. Its breadth of languages and verticals overlaps directly with Defined.ai's Neevo platform and marketplace offering.
• Surge AI: Surge AI is an AI data labeling platform specializing in high-quality human feedback data for foundation models, including RLHF, red-teaming, and evaluation. It competes directly with Defined.ai's Data & Model Evaluation services for frontier-model customers like OpenAI and Anthropic.
• Toloka: Toloka operates a global crowdsourced data labeling platform with a marketplace model and contributor network spanning many countries and languages. It competes with Defined.ai on data collection, annotation, and evaluation, particularly for cost-sensitive enterprise buyers.
• Labelbox: Labelbox provides a data-centric AI platform for annotation, cataloging, and model evaluation, targeting enterprise AI teams with both SaaS tooling and human-in-the-loop services. It overlaps with Defined.ai on annotation workflows, evaluation tooling, and enterprise GTM.
• CloudFactory: CloudFactory offers a managed AI workforce for data labeling, annotation, and computer vision, serving similar enterprise verticals such as automotive, healthcare, and financial services. It competes with Defined.ai's professional services and Crowd-as-a-Service offerings.
• Sama: Sama provides AI training data with a focus on ethical sourcing and computer vision annotation, serving automotive, retail, and technology customers. Its ethical-data positioning and verticals overlap directly with Defined.ai's value proposition.

Emerging players

• Snorkel AI: Snorkel AI focuses on programmatic/data-centric AI development using weak supervision and labeling functions rather than purely human labeling. It is an emerging competitor to Defined.ai's data preparation and model evaluation workflows for enterprise AI teams.
• Roboflow: Roboflow specializes in computer vision training data and annotation tooling, serving developers and enterprises building vision models. It competes with Defined.ai's image and video annotation offerings, particularly for robotics and ADAS use cases.

Broad incumbents

• Amazon SageMaker Ground Truth: AWS SageMaker Ground Truth is Amazon's in-platform labeling service bundled with the broader AWS ecosystem. It represents a broad-incumbent threat because AWS-native customers may prefer the integrated option over a third-party vendor like Defined.ai.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/defined-ai
• Xx.com/definedai

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries1 record

Funding overview

Funding rounds6 records

Investors17 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Defined.ai