Appen
Appen is a publicly traded AI data company that provides human-validated training data and model evaluation services, including RLHF, multimodal annotation, and agent trajectory data, to frontier AI labs, hyperscalers, and enterprises via its ADAP platform and 1M+ global contributor crowd.
- Company typePublic
- Founded1996
- HeadquartersChatswood, Australia
- Headcount101–250
- GTM typeB2B
- OfferingSoftware
What Appen does
Appen Limited (ASX: APX) is a publicly traded AI data company founded in 1996 and headquartered in Chatswood, Australia, with US headquarters in Kirkland, WA. The company provides human-validated training data and evaluation services for AI systems, serving frontier AI labs, hyperscalers, autonomous vehicle and robotics developers, and enterprises deploying AI in healthcare, automotive, and finance. Its core product is the AI Data Platform (ADAP), an enterprise annotation workflow platform that combines automation with human oversight and supports text, speech, audio, image, video, LiDAR, and multimodal alignment tasks across 500+ global locales via a crowd of 1M+ vetted contributors (operated under the CrowdGen sub-brand).
The product portfolio is organized into six specialized data products built on ADAP: Frontier Alignment (CoT reasoning traces, SME RLHF, SFT, adversarial red teaming), Agentic AI (golden trajectories, RL environments, SWE-driven evaluation), Speech & Audio (expressive TTS, ASR, emotion and dialect labelling), Multimodal AI (VLM fine-tuning, cross-modal alignment), Physical AI (LiDAR, sensor fusion, robot trajectories), and Model Integrity (hallucination benchmarking, bias detection, regulatory audits). The platform integrates natively with AWS, Azure, and GCP via Secure Data Access and exposes a REST API with SDKs in JavaScript, Python, and Java. Appen holds SOC 2 Type II, ISO 27001, HIPAA, GDPR, Cyber Essentials, and PEZA certifications, and is a signatory to the UN Global Compact.
Appen generates revenue primarily through quote-based, project-specific enterprise engagements (professional services model), supplemented by platform access and technology services. Customers include Amazon, Microsoft, Salesforce, NVIDIA, and a reported 80% of leading LLM builders, with multi-year contract cadence. FY2024 revenue was AUD 234.3M (down 14% YoY) following the March 2024 termination of a major Google contract worth ~AUD 82.8M annually. The December 2025 quarter showed recovery to AUD 73.4M (+10% YoY) with underlying EBITDA of AUD 13.3M (+182%), reflecting the company's pivot toward generative AI, platform-based offerings, and adjacent verticals such as robotics and physical AI.
Appen firmographics
Firmographics- Name
- Appen
- Legal name
- Appen Limited
- Website
- https://appen.com
- Company type
- Public
- Founded year
- 1996
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Appen is a publicly traded AI data company that provides human-validated training data and model evaluation services, including RLHF, multimodal annotation, and agent trajectory data, to frontier AI labs, hyperscalers, and enterprises via its ADAP platform and 1M+ global contributor crowd.
- Ownership category
- akta.pro rank
Appen industry classification
Industry- Product category
- AI Training Data Services
- NAICS
- Software Publishers (513210), Software Publishers (5132), Custom Computer Programming Services (541511)
- SIC
- Services-Computer Processing & Data Preparation (7374), Services-Prepackaged Software (7372)
- akta.pro primary industry
- End-to-End Enterprise AI Platforms (MLOps & Model Lifecycle Management) (HDAEANAA)
- akta.pro secondary industries
- AI Observability, Monitoring & Evaluation Platforms (Drift, Quality, Safety) (HDAEANAF), Responsible AI, Security & Privacy Platforms (Safety, Guardrails, PII) (HDAEANAG)
Keywords
Where Appen is headquartered
LocationHeadquarters
- HQ city
- Chatswood
- HQ country
- Australia
- HQ region
- Oceania
Offices6 records
Markets served
Appen business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- AI Training Data Services: Appen provides human-annotated training data for AI models across text, speech, audio, image, video, and multimodal domains. Revenue is generated through project-based engagements where clients pay for data collection, annotation, and evaluation services at scale. The platform supports both custom project work and standardized data product offerings for frontier AI development.
- Platform Access & Technology Services: Appen generates revenue through its AI Data Platform (ADAP), providing enterprise clients with access to annotation tools, contributor management, quality control workflows, and API-based automation capabilities. Clients use the platform to run their own annotation projects with Appen's crowd workforce and infrastructure.
- Generative AI & Model Evaluation Services: Appen pivoted toward generative AI applications and platform-based offerings following the loss of its major Google contract. New revenue streams include RLHF, red teaming, CoT reasoning, and model integrity/evaluation services for frontier AI labs.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Enterprise custom projects — quote-based engagement |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels7 records
Appen product offering
Product offeringCore offering
Appen provides human-validated AI training data and annotation services through its AI Data Platform (ADAP), combining a global crowd of 1M+ vetted contributors with AI-powered automation. The company delivers specialized data products across frontier alignment (RLHF, reasoning, red teaming), agentic AI, speech and audio, multimodal AI, physical AI (LiDAR/robotics), and model integrity evaluation for enterprise AI labs and technology companies.
Product overview
Appen is a 30-year-old AI data company that provides human-validated training data for AI systems. The company's product portfolio centers on the AI Data Platform (ADAP), a core annotation platform that combines automation with human oversight. Built upon this platform are six specialized data products: Frontier Alignment (RLHF and model safety), Agentic AI (autonomous agent training), Speech & Audio (speech synthesis and recognition), Multimodal AI (vision-language data), Physical AI (robotics and autonomous vehicle data), and Model Integrity (evaluation and compliance). Appen also operates CrowdGen, a contributor platform with 1M+ global workers, and provides secure cloud storage integrations with AWS, Azure, and GCP through Appen Secure Data Access.
Differentiator
Problem solved
Functional benefit
Products and services
- AI Data Platform (ADAP)
Quantifiable outcome
- Delivered over 7,500 AI projects scoped and deployed for enterprise clients
- +1 more outcomes
Companies that use Appen
Customer profileNamed customers5 records
Segments4 records
Ideal customer profiles4 records
Appen technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration4 records
AI capability15 records
Feature10 records
Appen partnerships and signals
Strategic signalPartnerships
Five partnerships are on record, tiered core.
- AmazoncoreAmazon is listed as a key partner/client on Appen's Clients & Partners page. Appen provides AI training data services to Amazon for machine learning model development.
- SalesforcecoreSalesforce is listed as a key partner/client on Appen's Clients & Partners page. Appen provides AI training data services to Salesforce for enhancing AI-powered CRM capabilities.
- MicrosoftcoreMicrosoft is listed as a key partner/client on Appen's Clients & Partners page. Appen provides AI training data services to Microsoft for AI and machine learning development.
- NVIDIAcoreNVIDIA is listed as a key partner/client on Appen's Clients & Partners page. Appen provides AI training data services to NVIDIA for GPU-accelerated AI development.
- AWS (Amazon Web Services)coreAppen x AWS is cited as a major technology partnership in the AI data ecosystem. Appen's platform integrates with AWS cloud infrastructure for data processing and annotation workflows. The partnership provides cloud-based AI data services leveraging AWS infrastructure.
Scale indicators10 records
Recent moves6 records
Expansion highlights6 records
Appen competitors and assessment
Company assessmentMarket position
Competitive moat5 records
Key risks6 records
Key highlights6 records
Customer concentration
Appen social profiles
Digital presenceAppen compliance and trust
Trust signalCompliance6 records
Appen financial estimates
Financial estimateRevenue estimate
Valuation estimate
Appen leadership team
Management profileNumber of profiles
Profiles2 records
Appen subsidiaries and ownership
Company hierarchySubsidiaries1 record
Appen funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Appen M&A and investment
M&A and investmentM&A5 records
Investments1 record
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Appen
What does Appen do?
Appen provides human-validated AI training data and annotation services through its AI Data Platform (ADAP), combining a global crowd of 1M+ vetted contributors with AI-powered automation. The company delivers specialized data products across frontier alignment (RLHF, reasoning, red teaming), agentic AI, speech and audio, multimodal AI, physical AI (LiDAR/robotics), and model integrity evaluation for enterprise AI labs and technology companies.
Is Appen a public or private company?
Appen is a public company. It is classified as public and is currently operating.
When was Appen founded?
Appen was founded in 1996. It employs 101 to 250 people.
Where is Appen based?
Appen is headquartered in Chatswood, Australia, in the Oceania region.
How does Appen make money?
Three revenue lines are on record. AI Training Data Services are the primary driver. The others are platform Access & Technology Services and generative AI & Model Evaluation Services.
Does Appen have an API?
Yes. Appen provides a REST API accessible at developer.appen.com that allows developers to programmatically interact with the platform. The API supports automation workflows including Jobs Resource management, Webhook integrations for real-time event handling, and Server-Side Validation (SSV). SDKs are available in JavaScript, Python, and Java. Developer documentation is at developer.appen.com.
What industry is Appen in?
Appen's product category is AI Training Data Services. Its primary akta.pro industry code is HDAEANAA, End-to-End Enterprise AI Platforms (MLOps & Model Lifecycle Management), with a secondary code of HDAEANAF, AI Observability, Monitoring & Evaluation Platforms (Drift, Quality, Safety). Its NAICS code is 513210 and its SIC code is 7374.