Appen vs CrowdFlower Inc.
Appen
Appen is your trusted data partner, powering cutting-edge AI applications for the world's most innovative companies
21263 employees · est. 1996 · Kirkland, United States
Appen is the older company (1996 vs 2008); Appen is the larger of the two.
Side-by-Side Comparison
| Metric | Appen | CrowdFlower Inc. |
|---|---|---|
| Founded | ||
| Founded | 1996 older | 2008 |
| Headquarters | ||
| Headquarters | Kirkland, United States | San Francisco, United States |
| Employees | ||
| Employees | 21263 larger | 145 |
| Industry | ||
| Industry | AI, Data Analytics, Enterprise Software | AI, Computer Vision, Enterprise Software |
| Funding Stage | ||
| Funding Stage | Later Stage | Venture round |
| Total Funding | ||
| Total Funding | $40.20M | $58.00M |
| Funding Rounds | ||
| Funding Rounds | 3 | 6 |
| Services | ||
| Services | Data Annotation, AI Model Evaluation, Speech and Audio Analysis, Multimodal Training Data, Compliance Audits and Bias Detection | Not tracked yet |
| Target Customers | ||
| Target Customers | AI Research Labs, Technology Companies, Robotics Firms, Large Language Model Developers, Enterprise Clients needing AI Integration | Not tracked yet |
| Taxonomy | ||
| Taxonomy | AI Training DataHuman-in-the-loop ServicesGenerative AILarge Language ModelsComputer VisionSpeech Recognition +9 | Human-in-the-Loop Machine Learning PlatformTraining DataMachine Learning-assisted AnnotationComputer VisionNatural Language ProcessingData Annotation +9 |
| Website | ||
| Website | appen.com | figure-eight.com |
About Appen
Appen, founded in 1996 in the United States, stands as a leader in the AI training data industry, providing essential datasets for top-tier companies innovating in AI applications. The company excels in end-to-end solutions for creating bespoke, human-generated data pivotal for training and optimiz...
About CrowdFlower Inc.
CrowdFlower Inc., now rebranded as Figure Eight, is a pivotal player in the Human-in-the-Loop Machine Learning domain. Established in 2008 and headquartered in the United States, the company offers a robust platform instrumental for generating high-quality training data required for AI models operat...
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Compiled from the BounceWatch company index. We last looked at Appen on 13 Sep 2026, and CrowdFlower Inc. on 15 Sep 2025. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.
