Top Data Annotation Companies

A machine learning model is only as accurate as the labels it learns from. Data annotation services companies supply those labels at volume: boxes, polygons and masks on images, object tracking across video frames, 3D cuboids in LiDAR point clouds, entities and intents in text, transcripts and speaker turns in audio, and preference rankings and written responses for training large language models. AI teams outsource it when in-house labeling cannot keep up, when they need domain experts such as radiologists or linguists, or when a new model needs a large training set.

Compare data annotation providers here on the label types they have delivered at scale, how they measure quality, and where and how your data is handled.

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We evaluate companies on verified profile data: services, pricing, locations, and portfolio. Client reviews are being collected. We may earn a fee for some placements. How we rank and verify

549 Companies

List of the Best Data Annotation Services Agencies

3D PLUS GH
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3D PLUS GH is an IT services firm located in Ghana, founded in 2003, that focuses on providing innovative business solutions, including cloud services, software development, and IT consulting. We enable businesses by delivering personalized digital solutions designed to address the specific needs of
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+6 Services
10% API Development & Integration
10% QA & Software Testing
10% Customer Support Outsourcing
10% Content Moderation Services
AI Summary
“The company offers proficient data services including Content Moderation and Data Annotation, supporting AI and machine learning workflows and ensuring quality data management aligned with industry needs.”
DAINTYMINDZ LTD
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Daintymindz Laboratory is an innovative research studio oriented towards the future, dedicated to designing intelligent, sustainable, and resilient systems for the upcoming century. With strategically located operational centers in Nigeria, the USA, Canada, and South Korea, we specialize in connecti
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided+4 Services
5% Generative AI
17% Machine Learning Model Development
7% AI Agent & Multi-Agent System Development
5% AI Strategy & Roadmap Consulting
AI Summary
“Daintymindz Ltd. develops intelligent, sustainable systems by integrating advanced machine learning, software, data analytics, and global data operations to solve diverse real-world challenges worldwide.”
Persona
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Persona integrates top-tier assistants into your organization, enabling you to accelerate your business growth with exceptional talent. On average, an assistant can help their client save 32 hours per week.
Highlights
250-999
Employees
Services Provided+4 Services
10% Content Moderation Services
10% Data Annotation Services
20% Email & Newsletter Copywriting
10% Email Marketing & Automation
AI Summary
“Persona provides organizations with skilled assistants to enhance productivity and accelerate growth, helping clients save an average of 32 hours per week through expert support.”
Vision Tact LLC
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Vision Tact is a prominent AI and Data Science firm that enables organizations to leverage Artificial Intelligence, Automation, and Data Intelligence effectively. We assist businesses in accelerating innovation, streamlining operations, and enhancing decision-making through customized, cutting-edge
Highlights
$25-49/hr
Avg Hourly Rate
2-9
Employees
Dubai, Dubayy, Ae
Services Provided+10 Services
6% Robotic Process Automation (RPA)
4% Other IT Consulting and SI
8% Custom AI Chatbot Development
5% Cloud Consulting & SI
AI Summary
“Vision Tact LLC specializes in AI, automation, and data intelligence solutions that empower businesses to innovate, optimize operations, and enhance decision-making for sustained growth and value.”
AEM Limited LLC
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Empowering Small Business Success with Customized Consulting Solutions At AEM Limited, we are dedicated to driving the success of small businesses through strategic insights and personalized consulting services. With a foundation rooted in innovation and excellence, our skilled team is aware of the
Highlights
$1,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
2-9
Employees
Services Provided+11 Services
11% API Development & Integration
5% Content Marketing Strategy
2% Video Marketing Strategy
2% Account-Based Marketing (ABM)
AI Summary
“AEM Limited delivers tailored consulting services for small businesses, specializing in strategy, financial management, AI-driven marketing, software optimization, and acquisition support to foster sustainable growth.”
Cybercanny
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Located in Braga, Portugal, we are an energetic 360-degree digital service agency focused on providing outstanding digital solutions around the world. With our expertise in comprehensive digital strategies, we combine local knowledge with global innovation to enhance your business in the digital rea
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
10-49
Employees
Braga, Pt Sao Paulo, Pt
Services Provided+24 Services
6% Mobile App Development (iOS & Android)
3% QA & Software Testing
4% Custom Web Application Development
1% E-Commerce Development
AI Summary
“Cybercanny is a Portugal-based digital agency delivering comprehensive global digital strategies and solutions, facilitating seamless digital transformation to enhance and strengthen businesses across industries.”
DATAFOREST
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Welcome to the cutting edge of AI and Data Engineering services, where creativity aligns perfectly with your business objectives. Our expert team is dedicated to helping organizations navigate the process of adopting AI. We work in close partnership with you to evaluate your specific requirements, c
Highlights
$10,000+
Min Project Size
$50-99/hr
Avg Hourly Rate
50-249
Employees
Kyiv, Ua
Services Provided+26 Services
5% AI Strategy & Roadmap Consulting
3% LLM Integration & Prompt Engineering
3% Custom AI Chatbot Development
3% Machine Learning Model Development
AI Summary
“DATAFOREST specializes in AI and Data Engineering, partnering with organizations to develop tailored AI strategies and seamlessly integrate technologies, enhancing efficiency and fostering sustainable growth.”
Outside the Box
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We are dedicated to providing solutions that are tailored to our clients' needs in a creative and innovative manner. We believe in the effectiveness of processes, diversity, and continuous improvement. By managing projects in an agile manner, we utilize methods and practices that facilitate smooth i
Highlights
$10,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
50-249
Employees
Cordoba, Cordoba, Ar
Services Provided+10 Services
8% E-Commerce Development
14% Custom Web Application Development
8% Mobile App Development (iOS & Android)
3% Legacy System Modernization
AI Summary
“Outside the Box delivers innovative, tailored solutions across diverse industries using agile project management, fostering collaboration, continuous learning, and process improvement for excellent results.”
Priorise
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Priorise collaborates with organizations to accelerate sustainable growth in the dynamic business environment. We provide comprehensive Decision Science solutions by blending Business and Decision Science technologies enhanced by AI/ML. Whether through Consulting or Professional services, we utilize
Highlights
50-249
Employees
Jaipur, Rajasthan, In
Services Provided+9 Services
5% AI Strategy & Roadmap Consulting
2% Other IT Consulting and SI
3% Generative AI
4% Machine Learning Model Development
AI Summary
“Priorise delivers tailored Decision Science solutions leveraging AI/ML to support organizations in sustainable growth across product and service sectors through consulting and professional services.”
AI Himalaya Pvt Ltd
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AI Himalaya, a data engineering company based in Nepal, focuses on delivering innovative, prompt, and budget-friendly solutions for data integration, warehousing, pipeline development, big data analytics, and cloud data engineering.
Highlights
$1,000+
Min Project Size
$25-49/hr
Avg Hourly Rate
2-9
Employees
Services Provided+4 Services
14% BI & Big Data Consulting & SI
12% Cloud Consulting & SI
5% AI Model Fine-Tuning & Training
3% IT Staff Augmentation
AI Summary
“AI Himalaya Pvt Ltd is a Nepal-based data engineering firm specializing in cost-effective, innovative solutions for data integration, warehousing, pipeline development, big data analytics, and cloud engineering.”

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