# Top Free Data Labeling Services ## How Many Data Labeling Services Products Does G2 Track? **Total Products under this Category:** 65 ### Category Stats (Aug 2026) - **Average Rating:** 4.72/5 The average rating of products in this category, based on all submitted ratings _Last updated: August 01, 2026_ ## How Does G2 Rank Data Labeling Services Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 100+ Authentic Reviews - 65+ Products - Unbiased Rankings G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category. ## G2 Grid® for Data Labeling Services ![G2 Grid® for Data Labeling Services plotting products by satisfaction and market presence](https://www.g2.com/categories/data-labeling-services/grids.png?focus%5B%5D=166850&focus%5B%5D=1215445&focus%5B%5D=124109&focus%5B%5D=76700&focus%5B%5D=167238) Highlighted products: Label Your Data, Acme AI, COGITO Tech Data labeling, CloudFactory, and People for AI. Underlying data: [Grid® JSON](https://www.g2.com/categories/data-labeling-services/grids.json?focus%5B%5D=label-your-data&focus%5B%5D=acme-ai&focus%5B%5D=cogito-tech-data-labeling&focus%5B%5D=cloudfactory&focus%5B%5D=people-for-ai) ### [Acme AI](https://www.g2.com/products/acme-ai/reviews) Acme AI Ltd. is a data annotation outfit and artificial intelligence solution developer. We support development and augmentation of artificial intelligence systems in the space of agricultural AI, retail automation, robotics, autonomous vehicles, medical AI, climate change among many more. Acme AI Ltd. is ISO 27001, 9001, HIPAA, and GDPR certified. Bangla, Bulgarian, Chinese, Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hungarian, Indonesian, Italian, Japanese, Korean, Latvian, Lithuanian, Norwegian, Polish, Portuguese, Romanian, Russian, Slovak, Slovenian, Spanish, Swedish, Turkish, and Ukrainian **Average Rating:** 5.0/5.0 **Total Reviews:** 12 #### Who Is the Company Behind Acme AI? - **Seller:** [Acme AI Ltd.](https://www.g2.com/sellers/acme-ai-ltd) - **Year Founded:** 2019 - **HQ Location:** Dhaka North, BD - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=260cb6f3a6566f783ff646a2d5ef915df5bcccfbf934e442c0f901c3e206748f&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Facme-ai%2F&secure%5Burl_type%5D=linkedin_company_website) 81 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 58% Small, 25% Medium #### What Are Recent G2 Reviews of Acme AI? **["Exceptional Remote Staffing and Data Annotation Services"](https://www.g2.com/survey_responses/acme-ai-review-12468325)** **Rating:** 5.0/5.0 stars _— Abu Bakar Siddik N._ [Read full review](https://www.g2.com/survey_responses/acme-ai-review-12468325) **["Reliable AI Solutions for Business Growth"](https://www.g2.com/survey_responses/acme-ai-review-12493645)** **Rating:** 5.0/5.0 stars _— Verified User in Computer Software_ [Read full review](https://www.g2.com/survey_responses/acme-ai-review-12493645) ### [COGITO Tech Data labeling](https://www.g2.com/products/cogito-tech-data-labeling/reviews) Cogito Tech offers Enterprise Data Labeling Services (EDLS), specializing in data curation and labeling. Our commitment to quality and ethical integrity is verified by the DataSum certification, ensuring transparency, ethical sourcing, and the highest data governance standards. This commitment enables us to deliver high-quality, ethically sourced data that you can trust, ensuring compliance, reliability, and effectiveness. You’ll never need to choose between achieving a competitive edge and sourcing data responsibly. With over a decade in the industry, we’ve honed our services to cater to various sectors, ranging from healthcare to finance, always ensuring relevance to your domain. Our skilled workforce guarantees quality, scalability, and cost-effectiveness, all while upholding the highest ethical and governance standards. We’re driven by domain specificity, a passion for data excellence, and a deep respect for intellectual property. By integrating advanced tools with human intelligence, we provide data solutions that capture global nuances, making AI universally competent and culturally sensitive. Dive deep into our offerings and discover how Cogito Tech is shaping the future of AI. For LLMs and GenAI, we provide specialized services such as Reinforcement Learning with Human Feedback (RLHF), Fine Tuning, Red Teaming, Prompt Engineering, and intricate data curation. For NLP and Computer Vision, our data annotation solutions cater to a myriad of use cases, enhancing accuracy and efficiency in AI applications. We’re proud to be certified in EU GDPR, SOC 2 Type II, and HIPAA, and to be CCPA compliant, along with our accreditations in ISO 27001-2013 and ISO 9001. **Average Rating:** 4.7/5.0 **Total Reviews:** 14 #### Who Is the Company Behind COGITO Tech Data labeling? - **Seller:** [COGITO Tech](https://www.g2.com/sellers/cogito-tech) - **Year Founded:** 2014 - **HQ Location:** Levittown, NY - **Twitter:** @cogitotech 1,994 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=5d1fa17203972a2e1f097fbbef142b3e63cdfa45316d83d27fff0400953dd7d8&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fcogito-tech-ltd%2F&secure%5Burl_type%5D=linkedin_company_website) 905 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 43% Small, 36% Medium #### What Are Recent G2 Reviews of COGITO Tech Data labeling? **["Great team, excellent support and cooperation - we are a happy customer"](https://www.g2.com/survey_responses/cogito-tech-data-labeling-review-9397654)** **Rating:** 4.5/5.0 stars _— Verified User in Computer Hardware_ [Read full review](https://www.g2.com/survey_responses/cogito-tech-data-labeling-review-9397654) **["Cogito annotation of machine learning dataset"](https://www.g2.com/survey_responses/cogito-tech-data-labeling-review-9525453)** **Rating:** 4.5/5.0 stars _— Verified User in Medical Devices_ [Read full review](https://www.g2.com/survey_responses/cogito-tech-data-labeling-review-9525453) ### [Zuru Services](https://www.g2.com/products/zuru-services/reviews) Zuru Services is an AI assisted Data labelling startup that helps AI/ML companies prepare quality training data at scale. We annotate data in any format across any industry vertical & also support upto 45 languages globally. In addition to AI assisted Data labelling, we also perform edge case analysis, model tuning, AI as a Service & AI related Managed Services. **Average Rating:** 4.2/5.0 **Total Reviews:** 5 #### Who Is the Company Behind Zuru Services? - **Seller:** [Zuru Services](https://www.g2.com/sellers/zuru-services) - **Year Founded:** 2019 - **HQ Location:** Bengaluru, IN - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=0d9c83997b12101948bf31e4d5af4a05325179ae5b3e58be96c9df5ad979b078&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fzuruservices&secure%5Burl_type%5D=linkedin_company_website) 2 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 60% Medium, 20% Large #### What Are Recent G2 Reviews of Zuru Services? **["Semantic segmentation project with Bovi"](https://www.g2.com/survey_responses/zuru-services-review-8728968)** **Rating:** 4.0/5.0 stars _— Jagadish M._ [Read full review](https://www.g2.com/survey_responses/zuru-services-review-8728968) **["Provided good annotation services."](https://www.g2.com/survey_responses/zuru-services-review-8777139)** **Rating:** 4.5/5.0 stars _— Brian M._ [Read full review](https://www.g2.com/survey_responses/zuru-services-review-8777139) #### What Are G2 Users Discussing About Zuru Services? - [What is Zuru Annotation Platform used for?](https://www.g2.com/discussions/what-is-zuru-annotation-platform-used-for) ### [AIMLEAP - Outsource Bigdata](https://www.g2.com/products/aimleap-outsource-bigdata/reviews) AIMLEAP - Outsource Bigdata is an ISO 9001:2015 and ISO/IEC 27001:2013 certified global technology consulting and service provider offering AI-augmented Data Solutions, Data Engineering, Automation, IT Services, and Digital Marketing Services. AIMLEAP has been recognized as a ‘Great Place to Work®’. With a special focus on AI and automation, we built quite a few AI & ML solutions, AI-driven web scraping solutions, AI-data Labeling, AI-Data-Hub, and Self-serving BI solutions. We started in 2012 and successfully delivered projects in IT & digital transformation, automation-driven data solutions, on-demand data, and digital marketing for more than 750 fast-growing companies in the USA, Europe, New Zealand, Australia, Canada; and more.  Our Data Solutions from AIMLEAP: APISCRAPY: AI-driven web scraping & workflow automation platform APYSCRAPY is an AI-driven web scraping and automation platform that converts any web data into ready-to-use data. The platform is capable to extract data from websites, processing data, automating workflows, classifying data, and integrating ready-to-consume data into a database or delivering data in any desired format.  AI-Labeler: AI-augmented annotation & labeling solution AI-Labeler is an AI-augmented data annotation platform that combines the power of artificial intelligence with in-person involvement to label, annotate and classify data, allowing faster development of robust and accurate models. AI-Data-Hub: On-demand data for building AI products & services On-demand AI data hub for curated data, pre-annotated data, pre-classified data, and allowing enterprises to obtain easily and efficiently, and exploit high-quality data for training and developing AI models. PRICESCRAPY: AI-enabled real-time pricing solution An AI and automation-driven price solution that provides real-time price monitoring, pricing analytics, and dynamic pricing for companies across the world.    APIKART: AI driven data API solution hub  APIKART is a data hub that allows businesses and developers to access and integrate large-volume data from various sources. It is a data solution hub for accessing data through APIs, allowing companies to leverage data, and integrate APIs into their systems and applications.  -An ISO 9001:2015 and ISO/IEC 27001:2013 certified -Served 750+ customers -11+ Years of industry experience -98% Client Retention -Great Place to Work® Certified -Global Delivery Centers in the USA, Canada, India & Australia Locations: USA: 1-30235 14656 Canada: +1 4378 370 063 India: +91 810 527 1615 Australia: +61 402 576 615 Email: sales@aimleap.com **Average Rating:** 5.0/5.0 **Total Reviews:** 27 #### Who Is the Company Behind AIMLEAP - Outsource Bigdata? - **Seller:** [Aimleap Outsource Bigdata](https://www.g2.com/sellers/aimleap-outsource-bigdata) - **Year Founded:** 2012 - **HQ Location:** United States, New York - **Twitter:** @aimleap 49 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=657040236c42c3d132d81ebf7d593d32bed83d1a18a6e705b144846b94febbf4&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Faimleap%2F&secure%5Burl_type%5D=linkedin_company_website) 145 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 43% Large, 43% Medium #### What Are Recent G2 Reviews of AIMLEAP - Outsource Bigdata? **["Staff Augmentation for Telecommunications"](https://www.g2.com/survey_responses/aimleap-outsource-bigdata-review-9384363)** **Rating:** 5.0/5.0 stars _— Joseph D._ [Read full review](https://www.g2.com/survey_responses/aimleap-outsource-bigdata-review-9384363) **["Software Dev for Design Company"](https://www.g2.com/survey_responses/aimleap-outsource-bigdata-review-9373084)** **Rating:** 5.0/5.0 stars _— Neil M._ [Read full review](https://www.g2.com/survey_responses/aimleap-outsource-bigdata-review-9373084) ### [Clickworker](https://www.g2.com/products/clickworker/reviews) clickworker provides over 50 different crowd sourcing services to a wide range of companies and roles, including Data Scientists, eCommerce businesses and retailers. For AI and Machine Learning applications they provide customized, high quality, and diverse data collection, categorization, evaluation, tagging and annotation services to help organizations create their training data. For online and bricks and mortar retailers they provide in-store visits, merchandising services, SEO texts, product tags, and categories. General business services include market research, competitive analysis, surveys and much more. clickworker serves their clients by utilizing a rapidly growing and global crowd of over 4 million Clickworkers. This crowd utilizes their skills, a sophisticated crowd-sourcing platform and fully featured mobile app to gather data and perform a wide range of micro-tasks. Popular clickworker services include: - Data Collection/Harvesting - Image & Video Annotation - Text Creation & Annotation - Speech & Audio Annotation - Market Research - Surveys - Remote, In-store and Field Tasks - HR - Marketing services - eCommerce/retail Data management All services are offered as a managed service. Some services, such as text creation, surveys and sentiment analyses, are also available on clickworker's self-service marketplace. Why Clickworker? clickworker is the low risk/high return option. They successfully complete more than 180 million micro-jobs annually, are trusted by 3 of the top 5 tech giants, and consistently deliver high quality outcomes. **Average Rating:** 4.1/5.0 **Total Reviews:** 15 #### Who Is the Company Behind Clickworker? - **Seller:** [Clickworker](https://www.g2.com/sellers/clickworker) - **Year Founded:** 2005 - **HQ Location:** Rochester, New York - **Twitter:** @clickworker\_com 7,560 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=c0c46127fe3b280ce3aa68988f07ff6174ed3bf5d77d44822e1693cca74debee&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fclickworker-com-inc-%2F&secure%5Burl_type%5D=linkedin_company_website) 1,541 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 65% Small, 29% Medium #### What Are Recent G2 Reviews of Clickworker? **["Best Crowdsourcing site!"](https://www.g2.com/survey_responses/clickworker-review-7783960)** **Rating:** 5.0/5.0 stars _— Alexys F._ [Read full review](https://www.g2.com/survey_responses/clickworker-review-7783960) **["Clickworker: A Legitimate Online Work at Home Platform"](https://www.g2.com/survey_responses/clickworker-review-5194015)** **Rating:** 5.0/5.0 stars _— kabilwa S._ [Read full review](https://www.g2.com/survey_responses/clickworker-review-5194015) #### What Are G2 Users Discussing About Clickworker? - [What is Clickworker used for?](https://www.g2.com/discussions/what-is-clickworker-used-for) ### [TagX](https://www.g2.com/products/tagx/reviews) TagX is a leading provider of data solutions for the AI industry. We understand that data is the backbone of AI and machine learning, and that's why we've dedicated ourselves to helping businesses access the data they need to drive their AI initiatives forward. Our services include data collection, curation, and annotation, as well as synthetic data generation. Our team of experts works with businesses to understand their data needs and provides customized solutions that meet their unique requirements. We use the latest technologies to gather and prepare data, ensuring that our clients have access to high-quality, accurate data that can be used to train computer vision, natural language processing, machine learning and all applications of Artificial intelligence. **Average Rating:** 5.0/5.0 **Total Reviews:** 1 #### Who Is the Company Behind TagX? - **Seller:** [TagX](https://www.g2.com/sellers/tagx) - **Year Founded:** 2020 - **HQ Location:** Dubai, AE - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=f283477c13950fc22ed8ddc04ee2b797735cff90c425e60e710831b698aeebbf&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Ftagx%2F&secure%5Burl_type%5D=linkedin_company_website) 81 employees on LinkedIn® #### Who Uses This Product? - **Company Size:** 100% Small #### What Are Recent G2 Reviews of TagX? **["Reliable Data Solutions Partner for Business Growth"](https://www.g2.com/survey_responses/tagx-review-11665830)** **Rating:** 5.0/5.0 stars _— vishakha P._ [Read full review](https://www.g2.com/survey_responses/tagx-review-11665830) ### [BasicAI Data Annotation Services](https://www.g2.com/products/basicai-data-annotation-services/reviews) In the past 7+ years, BasicAI has delivered professional, efficient and low-cost data labeling service for thousands of global partners. \_\_\_\_\_\_ Our services include: - Computer Vision | Image & Video Annotation Service: 2D Bounding Box Annotation, 2D Cuboid Annotation, Skeleton Annotation, Polygon & Poly-line, Key Point Annotation, Curve Annotation, Image Segmentation, 2D Object Tracking - Computer Vision | 3D Sensor Fusion Annotation Service: 3D Bounding Box Annotation, 3D Cuboid Annotation, 2D Cuboid Annotation, Point Cloud Segmentation, Drivable Area Annotation, Lane Annotation, Sensor Fusion Annotation, 3D Object Tracking - Large Language Models and Generative AI: Data Cleaning and Extraction, Reinforcement Learning from Human Feedback, Conversations Construction and Evaluation, Model Fine-Tuning and Evaluation, Multimodal Data Annotation for the Next Generation Language Models - Natural Language Processing: Coreference Resolution, Tokenization Annotation, Translation Transcription, Text Summarization, Spell-Checking, Entity Annotation, Relation Extraction, Question-Answering Annotation - Audio / Speech Annotation: Speech Transcription, Speech Segmentation, Speech Review, Audio Classification, Speaker Diarization, Emotion Labeling, Keyword Spotting, Paralinguistic Labeling - User Generated Content Moderation: Social Media Moderation, Comment Moderation, Review Moderation, Offensive Content Detection, Fake News Detection, Hate Speech Detection, Content Filtering, Spam Detection \_\_\_\_\_\_ Learn More at: https://www.basic.ai/data-annotation-service Image Annotation Service: https://www.basic.ai/image-annotation-service Sensor Fusion Annotation Service: https://www.basic.ai/data-annotation-service/sensor-fusion-annotation-service LLMs Training Data Service: https://www.basic.ai/data-annotation-service/large-language-models-data-solution Get a Quote Today: https://www.basic.ai/data-annotation-service#get-a-quote #### Who Is the Company Behind BasicAI Data Annotation Services? - **Seller:** [BasicAI](https://www.g2.com/sellers/basicai) - **Year Founded:** 2019 - **HQ Location:** Irvine, CA - **Twitter:** @BasicAIteam 94 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=ba3eaa059c8a7a084ee6d21cabec11709f9de9ae920b2d714211aee952d8cd09&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Fbasicaius%2Fabout%2F%3FviewAsMember%3Dtrue&secure%5Burl_type%5D=linkedin_company_website) 16 employees on LinkedIn® ### [Oworkers](https://www.g2.com/products/oworkers/reviews) OWORKERS IS A MULTILINGUAL BPO SERVICES COMPANY \>\> HIRE, OUTSOURCE, AUTOMATE Oworkers is a BPO provider offerings : - Staff augmentation services - Outsourcing services - Automation services. We are based in multiple countries with delivery centers in \> BULGARIA \> EGYPT \> MADAGASCAR \> THE PHILIPPINES. We offer Multilingual outsourcing services in 35 languages with a mix of AI agents and economical, scalable, ethical human workforce. We are ISO 27001 , GDPR compliant and an IMPACT sourcing provider. We serve all type of companies from Unicorn , big tech companies, AI companies to SME. Discover our services below : \>\> HIRE - Staffing services based on co-sourcing solutions \>\> OUTSOURCE - Front office operations Customer support services Technical support Services Hybrid solution : AI agents + Human validation - Back office operations Catalog management Data processing Document processing Invoices processing Human validation Moderation services - Data annotation services for AI companies and labs Images, Videos, 3D, text , audio \>\> AUTOMATE AI agents for CX AI agents for Back office We existed since 2015 , our top management have more than 25 years of experience in the BPO industry, All the centers director at least 10 year experience and the project managers at least 7 years of experience. We are around 500 employees and we are working for leaders companies since years, We’re big enough to be a global partner but small enough to stay flexible, agile and responsive. You can ask our DPO for all documentation for GDPR concerns at any time. #### Who Is the Company Behind Oworkers? - **Seller:** [Oworkers](https://www.g2.com/sellers/oworkers) - **Year Founded:** 2014 - **HQ Location:** Plovdiv, BG - **Twitter:** @O\_workers 467 Twitter followers - **LinkedIn® Page:** [www.linkedin.com](https://www.g2.com/external_clickthroughs/record?secure%5Bsource_type%5D=product_profile&secure%5Btoken%5D=b1441a7581ca5a716afa99ac8aedf10b8021cbc6769a9bedc5555687ae6fb0cb&secure%5Burl%5D=https%3A%2F%2Fwww.linkedin.com%2Fcompany%2Foworkers&secure%5Burl_type%5D=linkedin_company_website) 414 employees on LinkedIn® Spotlight Categories [Environmental Health and Safety Software](https://www.g2.com/categories/environmental-health-and-safety) [Spend Management Software](https://www.g2.com/categories/spend-management) [CMMS Software](https://www.g2.com/categories/cmms) [Digital Signage Software](https://www.g2.com/categories/digital-signage) [Contract Lifecycle Management (CLM) Software](https://www.g2.com/categories/contract-lifecycle-management-clm) Similar Categories - [Artificial Intelligence Consulting](/categories/artificial-intelligence-consulting) - [Business Intelligence (BI) Consulting](/categories/business-intelligence-bi-consulting) - [Business Process Management (BPM) Services](/categories/business-process-management-bpm-services) - [Cloud Consulting](/categories/cloud-consulting) - [Digital Transformation Consulting](/categories/digital-transformation-consulting) - [IoT Consulting Services](/categories/iot-consulting-services) - [IT Infrastructure Consulting](/categories/it-infrastructure-consulting) - [IT Strategy Consulting](/categories/it-strategy-consulting) - [Mobility Consulting](/categories/mobility-consulting) - [Other Solution Consulting](/categories/other-solution-consulting) - [Quote-to-Cash Consulting](/categories/quote-to-cash-consulting)