Trusted Data Service Provider

Voice datasets are an essential element in the training of new artificial intelligences, especially voice-enable technology. However, voice data collection (also known as speech data collection or audio data collection) can be a huge undertaking for companies or individuals.

By outsourcing voice data collection to a company with expertise in this area like Kotwel, you'll be able to spend less time on voice data collection and more time training your models.

Unique approach to collect custom voice/speech/audio that meets specific requirements

High-quality and multilingual voice datasets

Provide all the necessary assistance to ensure the desired result and client satisfaction.

Our unique approach to collecting voice/speech/audio to match

Any language.

Any dialect.

Any accent.

Aim To Innovate



Find out how we can help accelerate your AI deployment

Our Expertise

We are committed to total customer satisfaction through providing consistently high quality data & services to our worldwide customers.

Tailor-made Voice Data Collection Solutions

Kotwel is a full-service speech data collection company that ensures your voice-enabled technology works for multilingual audiences.


We can customize a speech data collection plan to meet your specific needs, no matter how large or small your speech data collection project.

We believe that the best AI/ML researchers and developers deserve the best data, and we aspire to offer it to them in a more affordable and accessible way.

Choose Kotwel, Choose

High-quality Voice Datasets

Excellence remains the prime focus of our dedicated team. We follow a strict quality process to ensure no compromise with quality at any level. Thereby, enabling our clients to possess unique, secure and high ended data.

Fast Delivery

We offer data services with a stellar workforce and well-equipped infrastructure to generate training data in a limited timeframe. This comes along with a scalable solution to handle data in bulk, ensuring quality outputs.

Security of Data at Each Level

Maintaining full data security and confidentiality is our priority. The dedicated team ensures no breach of data at any given point. Your data remains safe with us before, during and after delivery of the requisites.

Flexible Pricing

Once you become our client, we ensure in this journey you get the best deal with maximum benefits. Flexible pricing structure, affordable and secure services, high-quality data and scalable manpower are all welcomed at Kotwel.

Kotwel's Workflow

1. Project set-up

Our team will work with you to establish priorities and define deliverables. They'll work to develop a custom solution based on your project objectives and timeline.

2. Voice Dataset Collection

We vet and onboard collectors of your preferred demographics, set them the collection task, and collect the dataset you need for your models.

3. Delivery

Our project management team checks, packages and formats the data before being sent to you for final approval.

4. Post-completion customer service

Our company want to ensure your satisfaction with our delivery. We are willing to continue support you even after the project is completed.

Our Clients Trust Us

Client Testimonials

How clients talk about their experience with Kotwel


Anthony J.

Publishing Firm

Top in every way, responsiveness, customer relationship and best quality. I definitely contact Kotwel again for upcoming projects.


Chris H.

Technology Firm

If I could describe Kotwel services in only three words, they would be: excellent, speedy & productive.

Ye-jun K.

Ye-jun K.

Healthcare Firm

Kotwel really adapted to our needs. They understood what we were looking for, and offered us unique and appropriate solutions.

Hoang T.

Hoang T.

Manpower Firm

Our company used Kotwel’s data service and some other works. They delivered high-quality results, very satisfying. The project coordinator was very enthusiastic, helpful and professional. 5 stars for fantastic service.

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