Data Annotation Services

Build high-accuracy AI/ML models with enterprise-grade data annotation services. As a trusted AI data annotation service provider, our human-in-the-loop experts deliver precise data labeling and training datasets tailored to your custom requirements. Leverage our domain expertise to scale your machine learning projects faster.

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25,000+

Projects

9+ years

Experience

ISO

Certified

15,000+

Satisfied Clients

99.99%

Accuracy

Convert Unlabeled Data into High-Quality Datasets

Transform raw, unstructured data into model-ready training datasets. As an experienced data annotation company, we tag objects, actions, text, and events with pinpoint precision so your ML models learn accurately. Quality data labeling is the foundation of successful AI—our structured annotation workflows ensure high accuracy, faster training cycles, and reliable predictive models.

Scale your AI models with accurate data labeling.

Labeled Datasets

Contextually Relevant Annotations

Our domain experts deliver context-aware annotations tailored to your industry requirements. By prioritizing strict quality control and granular detail, we ensure every label directly enhances your model’s real-world accuracy.

In-Context: Tools We Use

We have our in-build data annotation tools. But, we can passionately work with your tools as well.

Human

Human-in-the-Loop Precision

Complex edge cases and specialized datasets require human expertise. With over 9 years of hands-on data labeling experience, our skilled annotators combine advanced tooling with meticulous manual verification to maintain maximum accuracy across every project.

Let’s discuss how our data annotation services can fit your project needs.

How Can We Help as a Data Annotation Company?

Data annotation spans multiple specialized domains. While many data annotation companies offer basic labeling, InputiX delivers end-to-end, high-accuracy training datasets custom-tailored to your computer vision and NLP requirements.

IMAGE ANNOTATIONS

Deploy bounding boxes, semantic segmentation, and polygons to label objects within visual data for precise computer vision models.

VIDEO ANNOTATIONS

Track object movements across sequential frames with temporal accuracy to train advanced video analytics models.

TEXT ANNOTATIONS

Extract entities, classify sentiments, and structure unstructured text to power robust Natural Language Processing (NLP) solutions.

SPEECH RECOGNITION

Process, transcribe, and label audio datasets to improve speech-to-text accuracy and voice-driven AI applications.

Train your AI/ML models 10X faster

High-end data labeling for all major datasets across industries

We label data for the development of AI/ML models in various sectors. Starting from;

Medical

Geospatial

Financial

Autonomous Vehicles

Retail

Robotics

AI & ML Companies

Information Technology

LLM (Large Language Model) Annotation Services

LLM annotation is a specialized process where complex datasets are curated, labeled, and aligned to train advanced generative AI models (such as ChatGPT, Gemini, and Claude). As part of our AI data annotation services, our experts structure text data to optimize model performance, accuracy, and domain-specific knowledge.

High-performing LLMs depend on a robust human-in-the-loop (HITL) framework. The InputiX annotation team acts as your human verification layer, helping your AI models understand nuanced language, follow complex instructions, and evaluate reasoning patterns. This directly improves model outputs for Q&A, content summarization, code generation, and RLHF (Reinforcement Learning from Human Feedback).

Special Categories of Annotation

PDF Annotation

PDF is the standard document format across legal, financial, and governmental sectors. We annotate and extract text, embedded metadata, tables, and notes from complex PDF documents to accelerate document digitization and optical character recognition (OCR) workflows.

Website Annotation

Essential for digital safety and content moderation, our team annotates live web pages and dynamic online assets. We classify, tag, and structure site content based on custom criteria—ensuring effective moderation against harmful content, hate speech, and policy violations.

Medical data Annotation

Our specialized annotators precisely label medical imaging and health records, including CT scans, X-rays, and EHR datasets. These highly accurate training datasets empower AI models to assist with clinical diagnostics, treatment planning, and medical research.

Time-series Annotation

Annotating sequential data helps ML models detect anomalies and predict trends. We label time-stamped datasets—including IoT sensor readings, stock market metrics, and ECG outputs—enabling algorithms to pinpoint critical events across temporal sequences.

Video Annotation Capabilities

Video Classification & Tagging

Categorize full video clips or specific frames using predefined tags. Our annotators classify scenes, identify core elements, and help train models to flag policy-violating, harmful, or inappropriate content automatically.

Video Captioning

Transform visual sequences into structured textual descriptions. Video captioning generates detailed contextual summaries, temporal event descriptions, and meta-data tags to train multimodal and video-understanding models.

Video Action Detection

Track, detect, and analyze human movements and complex behaviors across video sequences. Essential for sports analytics, surveillance, and automated safety monitoring to identify continuous activities with temporal precision.

Video Object Detection & Tracking

Detect and monitor moving objects across continuous video frames. Our annotators track trajectory, spatial position, bounding dimensions, and class labels across entire sequences with frame-by-frame precision.

Bounding boxes are drawn around each object that appears in a video sequence, and then a unique ID is assigned to each of them for tracking purposes. Bounding boxes detect, localize, and track objects within video sequences. Tracking objects via box techniques is popular in many industries, including video surveillance, sports analytics, and autonomous driving, etc.

Keypoint annotation helps identify critical points within the shape of objects. Drawing keypoints helps track those critical points when they move or change their position within the video frames. Keypoint video annotation is essential for doing human motion analysis, especially in sports AI application development.

Object segmentation using polygon tracking is also a very popular application of video annotation. We draw object boundaries to frame polygons. Thereafter, we assign unique labels to each object that appears in the video, which are movable. Video annotation using polygon tracking is complex and can take more time to complete.

Covering all types of Image Annotation

Image Tagging or Classification

Assigning one or more labels to an entire image. Image classification helps machine learning models to identify the content of an image and categorize it automatically. Imagine tagging or classification has multi-sector applications. In agriculture, classifying or tagging crop images as trained data helps ML algorithms to detect early signs of crop diseases. Like agriculture, we can classify, tag, and train image datasets for a wide range of industry applications.

Object Detection

Identify and localize objects within an image or video using object detection. We apply different techniques like bounding boxes, semantic segmentation, etc, to detect objects within a photo or video frame. Our data annotation experts accurately detect objects’ location and tag them. You don’t need complex ML algorithms to train your datasets. Precisely annotated image and visual data via expert annotators can help you more.

Image captioning

Extract the key content from the images and tag them using captions. Our annotation experts add key texts to images, like descriptions, to caption them. We generate appropriate texts to define the image content using our skills and years of annotation experience.

Polygon Annotation (Instance Segmentation)

Assign a unique label to each object within an image or video frame. Our annotation experts have the right skills and expertise in annotating polygons. Our team typically selects a set of points along with the boundary of the object and then annotates the data. We assign unique labels to each of the annotated objects.

Semantic Segmentation

Train your AI and ML models with segmented images to develop artificial vision. Our semantic segmentation experts classify each pixel of the image using predefined classes. Classifying each pixel of the images is a tough job, which InputiX has gained expertise in. We classify pixels and label them for varied applications such as autonomous driving, fashion, retail, and more.

Panoptic annotation

Combining both the elements from semantic segmentation and instance segmentation, we do panoptic annotation. We understand every complex type of annotation work due to our expertise in other types of annotation work. Besides that, we do roasted box annotation, lane annotation, cuboids, and other types of annotation with passion and accuracy.

Why Choose InputiX as Your Annotation Partner?

Human in the loop approach

Human in the loop approach

We annotate data and tag it with labels using high-powered tools using our skilled professionals. Plus, we constantly strike a balance between our automated and manual efforts in data annotation tasks. This has helped us significantly boost our annotation speed and accuracy.

Continuous Data Refresh

Your ML/AI models need constant updates with fresh datasets. Thus, we deploy a data update loop for constant data refresh with our annotated datasets. As a data annotation company, we are fully focused on providing you with contextually relevant labeled data for your ML/AI models.

Complete Data Protection

Data confidentiality is paramount to us. Plus, our Information Security Management System (ISMS) is powerful and trustworthy based on the ISO 27001 standard.

Multiple Language Support

Multiple Language Support

Hire our team of experts who are fluent in annotating data in various languages, including English, Spanish, Russian, German, Polish, French, and Ukrainian.

Client Experiences

data annoatation services client image

Partnering with InputiX has transformed our data annotation experience. Their attention to detail and commitment to accuracy have significantly enhanced our AI initiatives. The team’s professionalism and timely delivery make them a reliable choice. InputiX is more than a service provider; they are a strategic ally in our journey toward data-driven excellence. Grateful for their expertise and seamless collaboration.

Melin P., Operation Head of an Auto Manufacturing Company

Frequently Asked Questions (FAQs)

We handle a wide range of data types across multiple modalities, including images (bounding boxes, polygons, semantic segmentation), videos (object tracking, action detection), text (NLP tagging, sentiment analysis), audio (speech-to-text transcription), and specialized formats like PDFs, web pages, time-series data, and medical imagery (CT scans, X-rays).
We maintain strict accuracy through a Human-in-the-Loop (HITL) architecture. Every project undergoes multi-tiered quality verification, where expert annotators and domain specialists manually review automated labels, resolve complex edge cases, and ensure strict compliance with your project guidelines before delivery.
Yes. While we operate proprietary, high-speed annotation platforms, our annotators can seamlessly integrate directly into your existing toolstack, cloud environment, and custom workflows. Furthermore, we comply with strict security standards, including ISO/IEC 27001:2013, GDPR, and HIPAA.
Unlike generic crowdsourced platforms, InputiX offers dedicated, domain-trained workforce teams with over 9 years of hands-on experience. We combine automated pre-annotation tools with deep human verification to deliver higher dataset precision, faster model iteration cycles, and scalable capacity across complex industries.
Simply fill out our quote request form or schedule a discussion with one of our annotation specialists. We’ll review your dataset requirements, help determine the optimal labeling techniques, conduct a sample test run if needed, and provide a tailored project scope and estimate.

Power your ML/AI Model with Accurate Annotation

As a leading data annotation service provider, we combine advanced auto-labeling technology with human-in-the-loop expertise. Our domain specialists deliver high-quality, pre-processed datasets tailored to your specific project needs—helping you move from model development to production faster. Send us your requirements today!

Grab Your Quote Now!

By submitting my data I agree to be contacted

Grab Your Quote Now!

By submitting my data I agree to be contacted

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