Virtual assistants, also known as voice assistants, are voice-enabled software applications that use speech recognition, speech synthesis, and natural language processing to provide services in reaction to voice commands. These assistants are able to perform a variety of actions based on user input, such as setting calendar events, sending emails, and playing music.

In order for a virtual assistant to understand the nuances of a language, it must first digest vast amounts of text and audio data. The more text and audio training data, the better it is at recognizing and responding to user queries. At Lionbridge, we have decades of experience collecting data to train virtual assistants. Lionbridge offers the leading data solution to build virtual assistant software.

Our Services for Virtual Assistant Development

Audio Data Collection

Lionbridge is capable of gathering audio and speech data across all major languages, accents and dialects. From collecting remote voice samples from thousands of speakers to conducting professional studio recordings, we offer multiple levels of service depending on your requirements. Training virtual assistants with recordings from our diverse crowd ensures that the software will work well for everyone, no matter their native language or dialect.


Grammar Creation

Lionbridge’s network of language experts write and deploy thousands of syntactic rules to train the world’s leading virtual assistants. Work with our team of computational linguists to transpose your virtual assistant’s grammatical rules into over 300+ languages and dialects.


Audio Transcription

Our contributors listen to and transcribe verbal commands to improve virtual assistant software for the world’s leading technology companies. Lionbridge provides a complete, comprehensive transcription solution that can support rush orders, multilingual audio, time stamping and speaker identification.


Audio Classification

To train and test virtual assistant technology, our qualified contributors classify thousands of user commands based on client specifications. Thorough audio classification ensures that virtual assistant software can work well in all situations.


Our Annotation Platform

Power your virtual assistant with meticulously tagged text and audio data

How it Works

how to crowdsource data

1. Project set-up

Our team will work with you to develop a custom solution based on your project objectives and timeline.

how to crowdsource data
how to crowdsource data

2. Production

Our crowd of multilingual experts get to work creating, annotating or validating your data.

how to crowdsource data
how to crowdsource data

3. Delivery

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

how to crowdsource data

Why Lionbridge?


With over two decades of hands-on experience preparing data for machine learning, Lionbridge has helped the world’s largest technology brands train, test, and fine-tune their virtual assistants.


Our quality assurance system features built-in validation, spot-checking, regular performance evaluations, and a worker seniority system to ensure quality data.

Customizable Workflows

Lionbridge can work with you to make sure our team of experts gets your project done under your requirements and within your timeline.

1 million+ Contributors
300+ Languages
20+ Years of Experience

Virtual Assistant Data Pricing

How much does it cost to train a virtual assistant? The Lionbridge platform streamlines much of the process, allowing us to offer one of the most cost-effective data solutions in the industry. Contact us to get a free estimate for your project.

  • Account Manager
  • Project Management
  • 24/7 Support
  • API
  • NDA
  • Volume pricing
  • Custom reporting
  • Enterprise-grade SLAs
  • Custom invoicing
  • Consulting services
Get in touch with our team today

Multilingual Data for Virtual Assistants

Lionbridge provides text data to train virtual assistants to be fluent in over 300 languages.
Some of our most popular multilingual services include:

  • Chinese text data services
  • Dutch text data services
  • French text data services
  • German text data services
  • Italian audio data services
  • Japanese audio data services
  • Portuguese audio data services
  • Spanish audio data services