{ "schema_version": "1.0", "generated_at": "2026-10-04T01:01:15.401Z", "title": "AI training companies", "description": "Companies that pay people to train and evaluate AI models: who they are, how they hire, how they pay, and what their live listings pay. Curated fields are checked against each company's own pages; see sources per record.", "source_url": "https://aitrainer.work/open-data/companies", "documentation": "https://aitrainer.work/open-data/companies", "license": { "name": "CC BY 4.0", "url": "https://creativecommons.org/licenses/by/4.0/", "attribution": "Data from aitrainer.work/open-data/companies, licensed under CC BY 4.0 (creativecommons.org/licenses/by/4.0)" }, "notes": [ "Curated fields are null until checked against a primary source. Null means \"not yet verified\" or \"the company does not publish it\".", "pay_observed_hourly_usd uses listings that state an hourly rate; estimates are excluded. Shown only with 10+ listings.", "trustpilot_organic is the mean rating of organic (not company-invited) Trustpilot reviews from the aitrainer.work Trustpilot study (doi.org/10.5281/zenodo.23018069), only for platforms with 30+ organic reviews. It is not Trustpilot's TrustScore." ], "count": 54, "companies": [ { "id": "afterquery", "name": "AfterQuery", "website": "https://afterquery.com", "operator": null, "hq": "San Francisco, CA", "hq_country": "US", "founded": null, "headcount": "51-200", "work_types": [ "expert_data", "rlhf", "coding" ], "classification": "contractor", "payout_frequency": "weekly", "payment_methods": [ "stripe" ], "eligible_countries": "95 countries where Stripe pays out; 48 listed as unsupported, including Brazil, Nigeria, Egypt, Japan and China", "hiring_steps": [ "application", "assessment", "id_verification" ], "stated_pay": null, "description": "AfterQuery is an applied research lab that turns expert work into AI training data: fine-tuning examples, reasoning traces, grading rubrics, agent environments and computer-use demonstrations. It works with domain experts to capture how they reason through real tasks.", "pros": [ "Paid every Friday for the prior week's approved work", "No fees from AfterQuery on payouts", "Track every payout in Stripe or your Earnings dashboard" ], "cons": [ "Assessments are unpaid, and each pool's assessment can be taken once", "There's no pass or fail notice; you hear back when a matching project comes up", "Stripe is the only payout method, and the first payout has a 7-day hold" ], "listings": { "active": 216, "last_90d": 267, "first_seen": "2026-06-08", "last_seen": "2026-10-01" }, "pay_observed_hourly_usd": { "median": 87, "p25": 70, "p75": 115, "n": 172 }, "top_domains": [ { "domain": "Languages", "listings": 51 }, { "domain": "STEM", "listings": 28 }, { "domain": "Generalist", "listings": 27 }, { "domain": "Business", "listings": 23 }, { "domain": "Healthcare", "listings": 22 } ], "trustpilot_organic": null, "profile_url": "https://aitrainer.work/platforms/afterquery", "sources": { "website": "https://afterquery.com", "hq": "https://afterquery.com/careers", "hq_country": "https://afterquery.com/careers", "headcount": "https://www.linkedin.com/company/afterquery/", "work_types": "https://www.afterquery.com/", "classification": "https://docs.afterquery.com/articles/about/contract-work", "payout_frequency": "https://docs.afterquery.com/articles/payments-taxes/payment-setup", "payment_methods": "https://docs.afterquery.com/articles/payments-taxes/payment-setup", "eligible_countries": "https://docs.afterquery.com/articles/payments-taxes/payment-countries", "hiring_steps": "https://docs.afterquery.com/articles/onboarding/complete-your-onboarding", "description": "https://www.afterquery.com/", "pros": "https://docs.afterquery.com/articles/payments-taxes/payment-setup", "cons": "https://docs.afterquery.com/articles/onboarding/assessments" }, "last_checked": "2026-09-29" }, { "id": "aligned-labs", "name": "Aligned Labs", "website": "https://alignedhq.ai", "operator": null, "hq": "San Francisco, CA", "hq_country": "US", "founded": null, "headcount": "11-50", "work_types": [ "expert_data", "rlhf", "model_evaluation", "red_teaming" ], "classification": null, "payout_frequency": null, "payment_methods": [], "eligible_countries": null, "hiring_steps": [ "application" ], "stated_pay": null, "description": "Aligned Labs, founded by ex-Google staff, matches PhDs and senior professionals to AI lab projects. You'll write novel training data, give RLHF feedback and evaluate model outputs in your field, and you set your own hourly rate.", "pros": [ "You set your own hourly rate", "Applications are reviewed within 48 hours", "Network of 20,000+ experts across 50+ research domains" ], "cons": [ "About page asks for 15+ years of experience or teaching certification", "No pay figures published on the site" ], "listings": null, "pay_observed_hourly_usd": null, "top_domains": [], "trustpilot_organic": null, "profile_url": null, "sources": { "website": "https://alignedhq.ai/", "hq": "https://alignedhq.ai/", "hq_country": "https://alignedhq.ai/", "headcount": "https://www.linkedin.com/company/aligned-labs/", "work_types": "https://alignedhq.ai/", "hiring_steps": "https://alignedhq.ai/for-experts", "description": "https://alignedhq.ai/for-experts", "pros": "https://alignedhq.ai/for-experts", "cons": "https://alignedhq.ai/about" }, "last_checked": "2026-09-29" }, { "id": "alignerr", "name": "Alignerr", "website": "https://www.alignerr.com", "operator": "Labelbox", "hq": null, "hq_country": null, "founded": null, "headcount": "11-50", "work_types": [ "rlhf", "model_evaluation", "coding", "expert_data", "audio_speech", "data_labeling" ], "classification": "contractor", "payout_frequency": "weekly", "payment_methods": [ "deel" ], "eligible_countries": "Applicants from around the world who meet skill and communication requirements; visa holders only if their visa allows contract work", "hiring_steps": [ "application", "id_verification", "ai_interview", "assessment" ], "stated_pay": { "min": 10, "max": 280, "unit": "per_hour", "currency": "USD" }, "description": "Alignerr is Labelbox's contributor platform. You'll write code challenges, domain prompts and voice data, or grade model outputs against rubrics. Rates are listed on each project before you start, and the homepage says contributors are paid weekly.", "pros": [ "No minimum hours; the FAQ says many contributors work 20-25 hours a week", "Pay is listed in each project description before you start", "Homepage states contributors are paid weekly" ], "cons": [ "Identity check through Persona is required for all contributors", "Some jobs add a Zara AI interview or a skills assessment", "Every project starts with a calibration phase where sample work is reviewed" ], "listings": { "active": 60, "last_90d": 97, "first_seen": "2026-03-24", "last_seen": "2026-10-01" }, "pay_observed_hourly_usd": { "median": 23, "p25": 23, "p75": 35, "n": 60 }, "top_domains": [ { "domain": "Writing", "listings": 29 }, { "domain": "Languages", "listings": 17 }, { "domain": "STEM", "listings": 5 }, { "domain": "Data Science", "listings": 4 }, { "domain": "Generalist", "listings": 2 } ], "trustpilot_organic": { "mean": 4.61, "ci95": [ 4.59, 4.63 ], "organic_share": 0.87, "reviews_collected": 567, "collected": "2026-09-25", "source": "https://doi.org/10.5281/zenodo.23018069" }, "profile_url": "https://aitrainer.work/platforms/alignerr", "sources": { "website": "https://www.alignerr.com", "operator": "https://www.alignerr.com/faqs", "headcount": "https://www.linkedin.com/company/alignerr/", "work_types": "https://www.alignerr.com/faqs", "classification": "https://www.alignerr.com/faqs", "payout_frequency": "https://www.alignerr.com", "payment_methods": "https://www.alignerr.com/faqs", "eligible_countries": "https://www.alignerr.com/faqs", "hiring_steps": "https://www.alignerr.com/faqs", "stated_pay": "https://www.alignerr.com", "description": "https://www.alignerr.com/faqs", "pros": "https://www.alignerr.com/faqs", "cons": "https://www.alignerr.com/faqs" }, "last_checked": "2026-09-29" }, { "id": "appen", "name": "Appen", "website": "https://appen.com", "operator": null, "hq": "Sydney, Australia", "hq_country": "AU", "founded": 1996, "headcount": "501-1000", "work_types": [ "data_labeling", "model_evaluation", "expert_data", "coding", "translation" ], "classification": null, "payout_frequency": null, "payment_methods": [ "bank_transfer", "paypal", "payoneer", "airtm" ], "eligible_countries": "1M+ contributors across 170+ countries", "hiring_steps": [ "application", "id_verification" ], "stated_pay": null, "description": "Appen is an ASX-listed data company founded in Sydney in 1996. Its contributor platform, CrowdGen, pays you to evaluate, annotate and write content for AI training, with expert projects in code, law, medicine, finance and linguistics.", "pros": [ "Pays via bank transfer, PayPal, Payoneer or Airtm", "Rates are shown before you start", "Contributors in 170+ countries and 235+ languages" ], "cons": [ "Rates vary by location and skills", "Signup includes a verification step" ], "listings": null, "pay_observed_hourly_usd": null, "top_domains": [], "trustpilot_organic": null, "profile_url": null, "sources": { "website": "https://appen.com/about-us/", "hq": "https://appen.com/about-us/", "hq_country": "https://appen.com/about-us/", "founded": "https://appen.com/about-us/", "headcount": "https://www.linkedin.com/company/appen/", "work_types": "https://crowdgen.com/", "payment_methods": "https://crowdgen.com/", "eligible_countries": "https://appen.com/about-us/", "hiring_steps": "https://crowdgen.com/", "description": "https://crowdgen.com/", "pros": "https://crowdgen.com/", "cons": "https://crowdgen.com/" }, "last_checked": "2026-09-29" }, { "id": "atlas-capture", "name": "Atlas Capture", "website": "https://www.atlascapture.io", "operator": null, "hq": null, "hq_country": null, "founded": null, "headcount": "51-200", "work_types": [ "data_collection", "image_video_annotation", "data_labeling", "model_evaluation" ], "classification": null, "payout_frequency": "biweekly", "payment_methods": [], "eligible_countries": "North America, Asia and Australia", "hiring_steps": [], "stated_pay": null, "description": "Atlas Capture pays you to record short videos of everyday tasks like cooking and cleaning on an iPhone app, used to train robotics models. There are also text labeling and AI feedback tasks in the browser, and every task shows its pay upfront.", "pros": [ "Paid biweekly with no minimum balance", "No minimum hours or task quotas", "Each task shows its pay before you start" ], "cons": [ "Recording tasks need an iPhone 11 or newer", "Pay rates vary by region", "Only available in North America, Asia and Australia" ], "listings": null, "pay_observed_hourly_usd": null, "top_domains": [], "trustpilot_organic": null, "profile_url": null, "sources": { "website": "https://www.atlascapture.io/", "headcount": "https://www.linkedin.com/company/atlas-capture-llc/", "work_types": "https://www.atlascapture.io/", "payout_frequency": "https://www.atlascapture.io/", "eligible_countries": "https://www.atlascapture.io/", "description": "https://www.atlascapture.io/", "pros": "https://www.atlascapture.io/", "cons": "https://www.atlascapture.io/" }, "last_checked": "2026-09-29" }, { "id": "blend-localization", "name": "BLEND", "website": "https://www.getblend.com", "operator": "Tasq.ai", "hq": null, "hq_country": null, "founded": null, "headcount": null, "work_types": [ "translation", "audio_speech", "data_labeling" ], "classification": null, "payout_frequency": null, "payment_methods": [], "eligible_countries": "Freelancers in 172 countries", "hiring_steps": [ "application" ], "stated_pay": null, "description": "BLEND, formerly One Hour Translation and now a Tasq.ai company, is a localization firm. Its freelancer portal takes translators and voice artists in 120+ languages, and it also sells AI training data annotation to clients.", "pros": [ "Separate applications for translators and voice artists", "Work across 120+ languages", "Freelancer community in 172 countries" ], "cons": [ "No pay rates or payment methods published on the freelancer page", "Main site is aimed at business clients" ], "listings": null, "pay_observed_hourly_usd": null, "top_domains": [], "trustpilot_organic": null, "profile_url": null, "sources": { "website": "https://www.getblend.com/", "operator": "https://www.getblend.com/", "work_types": "https://www.getblend.com/", "eligible_countries": "https://freelancers.getblend.com/", "hiring_steps": "https://freelancers.getblend.com/", "description": "https://www.getblend.com/", "pros": "https://freelancers.getblend.com/", "cons": "https://freelancers.getblend.com/" }, "last_checked": "2026-09-28" }, { "id": "claru", "name": "Claru", "website": "https://claru.ai", "operator": "Reka AI Inc.", "hq": null, "hq_country": null, "founded": 2024, "headcount": "11-50", "work_types": [ "data_collection", "rlhf", "model_evaluation", "image_video_annotation", "red_teaming", "coding", "expert_data" ], "classification": "contractor", "payout_frequency": "biweekly", "payment_methods": [ "bank_transfer", "wise", "payoneer" ], "eligible_countries": "Most roles accept the US, Canada, Mexico and Brazil; capture variants also open in India, the Philippines, Indonesia, Vietnam, Argentina, Colombia, Chile and Peru", "hiring_steps": [ "application" ], "stated_pay": { "min": 5, "max": 100, "unit": "per_hour", "currency": "USD" }, "description": "Claru is Reka AI's data brand for physical and frontier AI. Contributors film first-person video of everyday tasks with gear Claru ships them, or do remote RLHF, annotation, code review and red teaming. Every listing shows its hourly rate in USD.", "pros": [ "Every listing shows its hourly rate in USD", "Paid bi-weekly via Wise, Payoneer or bank transfer", "Applications are reviewed within 3-5 business days" ], "cons": [ "Capture pay is set by region, from $5/hr in Asia to $15/hr in the US", "Capture roles pay for accepted footage only", "Camera equipment ships to you and goes back when the engagement ends" ], "listings": { "active": 60, "last_90d": 60, "first_seen": "2026-09-20", "last_seen": "2026-09-23" }, "pay_observed_hourly_usd": { "median": 13, "p25": 7, "p75": 21, "n": 60 }, "top_domains": [ { "domain": "Generalist", "listings": 38 }, { "domain": "Healthcare", "listings": 9 }, { "domain": "Software Engineering", "listings": 7 }, { "domain": "Business", "listings": 4 }, { "domain": "STEM", "listings": 1 } ], "trustpilot_organic": null, "profile_url": "https://aitrainer.work/platforms/claru", "sources": { "website": "https://claru.ai", "operator": "https://claru.ai/jobs", "founded": "https://claru.ai/jobs", "headcount": "https://www.linkedin.com/company/claru-ai/", "work_types": "https://claru.ai/jobs", "classification": "https://claru.ai/jobs", "payout_frequency": "https://claru.ai/jobs", "payment_methods": "https://claru.ai/jobs", "eligible_countries": "https://claru.ai/jobs", "hiring_steps": "https://claru.ai/jobs", "stated_pay": "https://claru.ai/jobs", "description": "https://claru.ai/jobs", "pros": "https://claru.ai/jobs", "cons": "https://claru.ai/jobs" }, "last_checked": "2026-09-29" }, { "id": "clickworker", "name": "Clickworker", "website": "https://www.clickworker.com", "operator": "LXT", "hq": "Essen, Germany", "hq_country": "DE", "founded": null, "headcount": "11-50", "work_types": [ "data_labeling", "data_collection", "research_studies" ], "classification": "contractor", "payout_frequency": "weekly", "payment_methods": [ "paypal", "payoneer", "bank_transfer" ], "eligible_countries": "Workers in 136 countries; you must be allowed to work where you live", "hiring_steps": [ "application", "assessment" ], "stated_pay": null, "description": "Clickworker is a German microtask platform where registered freelancers do data collection, labeling, categorization, surveys and app testing. It's paid per task at a fixed amount published before you start, with a weekly bill run.", "pros": [ "Weekly bill run, with PayPal payouts by Saturday", "€10 minimum for PayPal and SEPA", "Fixed pay per task, published in advance" ], "cons": [ "Payment methods depend on your country", "Bank payouts take 5-7 business days after the bill run" ], "listings": null, "pay_observed_hourly_usd": null, "top_domains": [], "trustpilot_organic": null, "profile_url": null, "sources": { "website": "https://www.clickworker.com/", "operator": "https://www.clickworker.com/", "hq": "https://www.clickworker.com/", "hq_country": "https://www.clickworker.com/", "headcount": "https://www.linkedin.com/company/clickworker/", "work_types": "https://www.clickworker.com/", "classification": "https://www.clickworker.com/", "payout_frequency": "https://support-workplace.clickworker.com/support/solutions/articles/80000672350-what-payment-options-do-i-have-", "payment_methods": "https://support-workplace.clickworker.com/support/solutions/articles/80000672350-what-payment-options-do-i-have-", "eligible_countries": "https://www.clickworker.com/clickworker-job/", "hiring_steps": "https://www.clickworker.com/clickworker-job/", "description": "https://www.clickworker.com/", "pros": "https://support-workplace.clickworker.com/support/solutions/articles/80000672350-what-payment-options-do-i-have-", "cons": "https://support-workplace.clickworker.com/support/solutions/articles/80000672350-what-payment-options-do-i-have-" }, "last_checked": "2026-09-29" }, { "id": "cloudfactory", "name": "CloudFactory", "website": "https://www.cloudfactory.com", "operator": null, "hq": null, "hq_country": null, "founded": 2010, "headcount": "1001-5000", "work_types": [ "data_labeling", "image_video_annotation", "audio_speech", "content_moderation" ], "classification": null, "payout_frequency": "monthly", "payment_methods": [ "bank_transfer" ], "eligible_countries": "Citizens of Nepal, Kenya, the Philippines or Colombia", "hiring_steps": [ "application", "assessment" ], "stated_pay": null, "description": "CloudFactory, founded in Nepal in 2010, hires Data Specialists for annotation, transcription, moderation and data extraction. You'll take a skills assessment and training, then get paid monthly into a local bank account.", "pros": [ "Paid monthly into your local bank account", "Training provided before you start", "Part-time and full-time options" ], "cons": [ "Only open to citizens of Nepal, Kenya, the Philippines or Colombia", "Some projects run on scheduled shifts" ], "listings": null, "pay_observed_hourly_usd": null, "top_domains": [], "trustpilot_organic": null, "profile_url": null, "sources": { "website": "https://www.cloudfactory.com/about", "founded": "https://www.cloudfactory.com/about", "headcount": "https://www.linkedin.com/company/cloudfactory-com/", "work_types": "https://www.cloudfactory.com/careers/data-specialist", "payout_frequency": "https://www.cloudfactory.com/careers/data-specialist", "payment_methods": "https://www.cloudfactory.com/careers/data-specialist", "eligible_countries": "https://www.cloudfactory.com/careers/data-specialist", "hiring_steps": "https://www.cloudfactory.com/careers/data-specialist", "description": "https://www.cloudfactory.com/careers/data-specialist", "pros": "https://www.cloudfactory.com/careers/data-specialist", "cons": "https://www.cloudfactory.com/careers/data-specialist" }, "last_checked": "2026-09-29" }, { "id": "cntxt-ai", "name": "CNTXT AI", "website": "https://www.cntxt.tech", "operator": null, "hq": null, "hq_country": null, "founded": 2021, "headcount": "51-200", "work_types": [ "model_evaluation", "coding", "expert_data" ], "classification": "contractor", "payout_frequency": null, "payment_methods": [], "eligible_countries": null, "hiring_steps": [ "application" ], "stated_pay": null, "description": "CNTXT AI is an Arabic-first AI and data company in the UAE. Its careers page lists remote hourly contractor roles for AI training, such as biology evaluators and Python and C++ coding experts.", "pros": [ "Remote, hourly contractor roles", "Listings for coding and science specialists" ], "cons": [ "Most of the site is aimed at enterprise clients", "No pay rates or payment methods published" ], "listings": null, "pay_observed_hourly_usd": null, "top_domains": [], "trustpilot_organic": null, "profile_url": null, "sources": { "website": "https://www.cntxt.tech/", "founded": "https://www.cntxt.tech/our-story", "headcount": "https://www.linkedin.com/company/cntxtai/", "work_types": "https://www.cntxt.tech/career", "classification": "https://www.cntxt.tech/career", "hiring_steps": "https://www.cntxt.tech/career", "description": "https://www.cntxt.tech/career", "pros": "https://www.cntxt.tech/career", "cons": "https://www.cntxt.tech/career" }, "last_checked": "2026-09-29" }, { "id": "dataannotation", "name": "DataAnnotation Tech", "website": "https://dataannotation.tech", "operator": "Surge AI", "hq": null, "hq_country": null, "founded": null, "headcount": "5001-10000", "work_types": [ "rlhf", "model_evaluation", "data_labeling", "coding", "expert_data" ], "classification": "contractor", "payout_frequency": "on_demand", "payment_methods": [ "paypal" ], "eligible_countries": null, "hiring_steps": [ "application", "assessment" ], "stated_pay": { "min": 25, "max": 150, "unit": "per_hour", "currency": "USD" }, "description": "DataAnnotation pays remote contractors to rank AI responses, check facts, label data and review subject-specific content. 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