AI Training Companies

Micro1 is an AI platform focused on human intelligence infrastructure for AI, including expert data operations, evaluation workflows, and AI-enabled recruiting (Zara). It supports data engine and intelligence workflows used for model training and performance improvement.

SuperAnnotate is an AI data annotation company (founded 2018). $36M Series B (NVIDIA, Databricks); CB Insights AI 100. Serves 200+ companies, 20% of Fortune 20. SME Careers is their expert platform.

Braintrust is a decentralized talent network connecting freelancers with NASA, Walmart, Nike, Goldman Sachs. 0% freelancer fee (keep 100%); clients pay 10-15%. 600K+ members.

Innodata Inc. (founded 1988, NJ) provides AI data services: annotation, collection, generative AI (fine-tuning, RLHF, safety). 4,000+ experts; healthcare, legal, finance. Seven of world's largest tech clients.

Lionbridge offers AI data services: translation, data collection, annotation, HITL evaluation. 600,000+ contributors, 350+ languages, 450+ locales. Trust Center and careers page.

Welocalize (founded 1997) is a top language service provider. Welo Data brand (2024) for AI training: annotation, LLM enhancement, data collection. 500K+ experts; 7 ISO certifications.

OneForma is a global AI data platform (20+ years, Redmond WA). 1.8M+ hired; 20K+ projects, 200 countries. Part of Centific ecosystem. Twice-monthly PayPal/Payoneer.

iMerit is an AI data labeling company trusted by Microsoft, Google Cloud, AWS, eBay, J&J, Autodesk. Image, video, LiDAR annotation; generative AI fine-tuning; NIST and ISO 27001.

Mindrift is an AI training platform powered by Toloka. 20K+ trainers; 50 domains, 15 languages; 70% Master's/PhD. $15-90/hr for LLM evaluation, feedback, hallucination detection.

TransPerfect is a translation and language services company ($1B+ revenue, 29+ years). DataForce has 1M+ professionals for AI data collection and annotation. ISO 18587 for AI translation.

TELUS International is a subsidiary of TELUS (Vancouver). AI data annotation: images, text, voice. Contractors paid via Hyperwallet; ~10 business days.

Handshake (founded 2014) connects students and alumni with employers. 17M+ students; ~1M employers including Fortune 500. Employer validation via Persona; fraud detection.

Gloz connects contributors with AI training tasks for language model development. Project-based work; pay varies by task and language. Strong English and attention to detail required.

Centific is a global AI data solutions company operating a data marketplace and annotation platform with 1.8M+ annotators across 230+ languages. Services include data collection, RLHF, supervised fine-tuning, model safety evaluation, and localization for enterprises including Microsoft.

Silencio collects and labels audio data for AI training. Over 1.5M+ contributors in 180+ countries; over $3M paid to contributors. Used for speech recognition, robotics, and voice interfaces. GDPR compliant.

RemoExperts (Rex.zone) is a remote job platform connecting workers with AI/ML companies for data annotation, RLHF, and LLM evaluation. Uses Label Studio, CVAT, Prodigy; SOC 2-aligned, GDPR compliant.

Uber AI Solutions is Uber Technologies' enterprise data annotation and labeling unit. Leverages 10+ years of internal expertise; 8M+ global earners, 72 countries. Text, image, audio, video, LiDAR labeling with uLabel/uTask platforms.

TaskVerse is a microtask platform by TaskUs (founded 2008) for image annotation, speech recording, and word tagging. Nearly 900K users in 100+ countries. Weekly PayPal payments.

Surge AI (Surge Labs) is a data labeling and AI training company that contracts workers for annotation, content moderation, and RLHF. Partners include Meta, OpenAI, Google, Microsoft, Anthropic. $25M funding; Forbes AI 50.

Clickworker is a Germany-based crowdsourcing platform with 7M+ workers in 136 countries. Tasks include AI training, surveys, data annotation, content creation. PayPal payments; 99% quality SLA for clients.

CloudFactory provides human-in-the-loop AI data services: annotation, validation, curation for computer vision, NLP, and AI pipelines. Managed teams and structured workflows; HQ Reading, UK.

Prolific is a research participant platform for academic and commercial studies. Participants complete surveys, diaries, video interviews. £6-12/hr; PayPal; 4.5-star Trustpilot.

LXT (founded 2010) provides speech and NLP data collection, annotation, evaluation. 8M+ contributors, 1,000+ locales; ISO 27001; Fortune 100 clients. Acquired Clickworker.

Toloka is a crowdsourcing platform by Yandex (founded 2014) for data labeling and annotation. Millions of Tolokers; clients include Yandex, Rambler, Ozone, Avito. Payoneer/Papara payouts.

xAI is Elon Musk's AI company (founded 2023) behind Grok. Mission to understand the universe and accelerate science. ~$6B funding; team from Google, Microsoft, DeepMind, OpenAI. Now part of SpaceX merger.

Perplexity AI is an AI search engine company (founded 2022). ~250 employees; $1.7B funding; investors include SoftBank, Nvidia. Forbes AI 50 and Cloud 100. HQ San Francisco.

RWS is a world-leading language and content technology company (60+ years, 7,500+ employees). Language Weaver AI translation; TrainAI data collection and annotation; GDPR compliant.

Cohere is an AI company (founded 2019, Toronto) building language models. ~$1B raised; $5.5B valuation; Salesforce, Nvidia. Forbes AI 50. Offices globally; hybrid/remote; strong benefits.

Stellar AI (joinstellar.ai) offers data annotation, AI model evaluation, and QA tasks. Remote; rates from $25/hr; project-based; quality over speed. Terms of Service and testimonials published.

Abaka AI provides AI data annotation and curation (MooreData platform). Full lifecycle: collection, curation, annotation, evaluation. 1B+ question bank; San Jose-based; founded 2019.

Alignerr is an AI training platform owned by Labelbox ($3.2B data infrastructure company). Pays bi-weekly via Deel; $15-150/hr; 4.5 Trustpilot. AI interviewer Zara for assessments.

Rise Data Labs is a VC-backed company providing high-fidelity training and evaluation data for AI models. They combine human expertise with automation to power training, evaluation, and generative AI development. The company operates an Automated Talent Engine with 500,000+ US professionals (98% college or higher), and specializes in data annotation and labeling for text, image, audio, video, and RLHF applications across domains like healthcare, finance, legal, and gaming.

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Outlier AI specializes in RLHF (Reinforcement Learning from Human Feedback) tasks, helping train large language models. They offer flexible remote work for AI trainers with expertise in various domains including coding, writing, mathematics, and more.

DataAnnotation.tech focuses on providing RLHF and data annotation services for leading AI labs. They specialize in expert-level tasks requiring domain knowledge in coding, math, science, and humanities.

Scale AI is the data-centric AI company, providing high-quality training data for AI applications. They work with major tech companies and government agencies to label and annotate data at scale. Their platform enables thousands of remote workers to contribute to AI development through various annotation tasks.

Remotasks is a global platform for data annotation and AI training tasks. They offer a wide range of task types from simple image labeling to complex RLHF evaluations. Their community of remote workers spans over 200 countries.

Invisible Technologies combines human intelligence with AI to deliver digital operations at scale. They offer roles in AI training, quality assurance, and process automation for Fortune 500 companies.

Appen is one of the largest AI training data companies globally, serving major tech companies. They offer a variety of projects from search relevance evaluation to autonomous driving data collection.