Accel

Accel is a venture capital firm founded in 1983 and based in Palo Alto, California, with additional offices in San Francisco, London, and Bangalore. It focuses on early and growth-stage technology startups, investing across software, cloud, data analytics, mobile technology, consumer services, fintech, security, healthcare, and information technologies. Accel seeks to partner with entrepreneurs to build world-class companies that define new categories and drive growth. Its portfolio includes notable technology companies such as Atlassian, Dropbox, Slack, Spotify, Etsy, Cloudera, DJI, Braintree, and Lookout Security, among others.

Pratik Agarwal

Principal

Casey Aylward

Partner

Mahendran Balachandran

Partner

Luca Bocchio

Partner

Philippe Botteri

Partner

Past deals in Language Processing

Synthesia

Series D in 2025
Founded in London in 2017, Synthesia Ltd. specializes in AI-driven video generation platforms. Its technology transforms text into professional videos with customizable avatars and voiceovers in over 140 languages, enabling efficient creation of personalized advertising, corporate communications, e-learning content, and more.

Speak

Series C in 2024
Speak is an AI-powered language-learning mobile application designed to help users learn English through interactive conversation. The app utilizes advanced speech recognition techniques, allowing users to engage in dialogues about real-world scenarios. This approach enables individuals to improve their English speaking skills by identifying words and phrases, even when spoken with thick accents. Speak's focus on practical conversation enhances the learning experience, making it easier for users to communicate effectively in various contexts.

Vocode

Seed Round in 2024
Vocode is a developer of an open-source library that focuses on creating voice-based applications using voice artificial intelligence. The company's platform facilitates the development of voice interfaces by providing essential features such as real-time speech recognition, natural language understanding, and speech synthesis. By emphasizing composability, Vocode equips developers with out-of-the-box tools tailored for common workflows, allowing them to seamlessly create realistic and production-ready conversational voice interfaces. This innovative approach positions Vocode as a key player in the evolution of voice technology, enabling a new generation of applications that leverage voice interactions.

AssemblyAI

Series C in 2023
AssemblyAI Inc. is a technology company based in San Francisco, California, established in 2017. It specializes in developing application programming interfaces (APIs) that facilitate the creation of customized chat interfaces and automate audio transcriptions. The company focuses on advancing speech AI technology by building highly accurate, user-friendly, and secure speech recognition models that can interpret and understand human speech. These models are utilized by thousands of users, including leading businesses and developers worldwide. AssemblyAI aims to democratize speech artificial intelligence, fostering innovation and expanding the potential applications of voice data across various industries. Its technology supports real-time transcription of streaming audio, allowing for the integration of industry-specific terminology and enhancing the development of voice-powered applications.

Synthesia

Series C in 2023
Founded in London in 2017, Synthesia Ltd. specializes in AI-driven video generation platforms. Its technology transforms text into professional videos with customizable avatars and voiceovers in over 140 languages, enabling efficient creation of personalized advertising, corporate communications, e-learning content, and more.

Koo App

Venture Round in 2022
Koo App is a microblogging platform that enables users to connect, comment, and engage in multiple Indian languages, including Hindi, Kannada, Telugu, and Bengali. The app offers features such as keyboards for regional languages, local language news feeds, and hyper-local hashtags, allowing individuals to express their thoughts through text, audio, and video on a wide range of topics. By focusing on local languages, Koo App aims to enhance communication and foster community engagement among users across India.

AssemblyAI

Series B in 2022
AssemblyAI Inc. is a technology company based in San Francisco, California, established in 2017. It specializes in developing application programming interfaces (APIs) that facilitate the creation of customized chat interfaces and automate audio transcriptions. The company focuses on advancing speech AI technology by building highly accurate, user-friendly, and secure speech recognition models that can interpret and understand human speech. These models are utilized by thousands of users, including leading businesses and developers worldwide. AssemblyAI aims to democratize speech artificial intelligence, fostering innovation and expanding the potential applications of voice data across various industries. Its technology supports real-time transcription of streaming audio, allowing for the integration of industry-specific terminology and enhancing the development of voice-powered applications.

AssemblyAI

Series A in 2022
AssemblyAI Inc. is a technology company based in San Francisco, California, established in 2017. It specializes in developing application programming interfaces (APIs) that facilitate the creation of customized chat interfaces and automate audio transcriptions. The company focuses on advancing speech AI technology by building highly accurate, user-friendly, and secure speech recognition models that can interpret and understand human speech. These models are utilized by thousands of users, including leading businesses and developers worldwide. AssemblyAI aims to democratize speech artificial intelligence, fostering innovation and expanding the potential applications of voice data across various industries. Its technology supports real-time transcription of streaming audio, allowing for the integration of industry-specific terminology and enhancing the development of voice-powered applications.

Koo App

Series B in 2021
Koo App is a microblogging platform that enables users to connect, comment, and engage in multiple Indian languages, including Hindi, Kannada, Telugu, and Bengali. The app offers features such as keyboards for regional languages, local language news feeds, and hyper-local hashtags, allowing individuals to express their thoughts through text, audio, and video on a wide range of topics. By focusing on local languages, Koo App aims to enhance communication and foster community engagement among users across India.

Vokal

Series A in 2021
Vokal is a platform designed to facilitate knowledge sharing among Indians, particularly targeting those who do not speak English, which constitutes approximately 90% of the population. By leveraging the rich linguistic diversity of India, which includes over 100 languages and 22 official languages, Vokal enables users to engage in peer-to-peer learning through various formats such as Questions & Answers, opinions, expert chats, and live sessions. The platform aims to bridge the significant content gap that exists in the predominantly English-language internet by providing accessible knowledge resources in native languages. Through its app and website, Vokal fosters a community where individuals can learn from one another and share insights on a wide range of topics.

Koo App

Series A in 2021
Koo App is a microblogging platform that enables users to connect, comment, and engage in multiple Indian languages, including Hindi, Kannada, Telugu, and Bengali. The app offers features such as keyboards for regional languages, local language news feeds, and hyper-local hashtags, allowing individuals to express their thoughts through text, audio, and video on a wide range of topics. By focusing on local languages, Koo App aims to enhance communication and foster community engagement among users across India.

AssemblyAI

Venture Round in 2020
AssemblyAI Inc. is a technology company based in San Francisco, California, established in 2017. It specializes in developing application programming interfaces (APIs) that facilitate the creation of customized chat interfaces and automate audio transcriptions. The company focuses on advancing speech AI technology by building highly accurate, user-friendly, and secure speech recognition models that can interpret and understand human speech. These models are utilized by thousands of users, including leading businesses and developers worldwide. AssemblyAI aims to democratize speech artificial intelligence, fostering innovation and expanding the potential applications of voice data across various industries. Its technology supports real-time transcription of streaming audio, allowing for the integration of industry-specific terminology and enhancing the development of voice-powered applications.

Eder Labs (dba ColorIt)

Venture Round in 2019
Color is a personalised shopping assistant, that understands the user deeply and personally through language, it creates a persona graph that dynamically evolves with the user’s journey on the Internet. Color helps create a meaningful and personalised product curation, while ensuring personal data remains in the control of the user.

Vokal

Series A in 2018
Vokal is a platform designed to facilitate knowledge sharing among Indians, particularly targeting those who do not speak English, which constitutes approximately 90% of the population. By leveraging the rich linguistic diversity of India, which includes over 100 languages and 22 official languages, Vokal enables users to engage in peer-to-peer learning through various formats such as Questions & Answers, opinions, expert chats, and live sessions. The platform aims to bridge the significant content gap that exists in the predominantly English-language internet by providing accessible knowledge resources in native languages. Through its app and website, Vokal fosters a community where individuals can learn from one another and share insights on a wide range of topics.

Vokal

Series A in 2018
Vokal is a platform designed to facilitate knowledge sharing among Indians, particularly targeting those who do not speak English, which constitutes approximately 90% of the population. By leveraging the rich linguistic diversity of India, which includes over 100 languages and 22 official languages, Vokal enables users to engage in peer-to-peer learning through various formats such as Questions & Answers, opinions, expert chats, and live sessions. The platform aims to bridge the significant content gap that exists in the predominantly English-language internet by providing accessible knowledge resources in native languages. Through its app and website, Vokal fosters a community where individuals can learn from one another and share insights on a wide range of topics.

Vokal

Seed Round in 2016
Vokal is a platform designed to facilitate knowledge sharing among Indians, particularly targeting those who do not speak English, which constitutes approximately 90% of the population. By leveraging the rich linguistic diversity of India, which includes over 100 languages and 22 official languages, Vokal enables users to engage in peer-to-peer learning through various formats such as Questions & Answers, opinions, expert chats, and live sessions. The platform aims to bridge the significant content gap that exists in the predominantly English-language internet by providing accessible knowledge resources in native languages. Through its app and website, Vokal fosters a community where individuals can learn from one another and share insights on a wide range of topics.

ClearGraph

Seed Round in 2015
ClearGraph is a company based in Palo Alto, California, founded in 2014 that specializes in enterprise search solutions aimed at making data accessible to business users. Its proprietary semantic search platform leverages context awareness and natural language processing to intelligently interpret and respond to queries in English, facilitating the discovery and understanding of enterprise data. The platform is designed to enable fast and actionable data analysis using everyday language, providing businesses with a user-friendly interface to interact with complex data sets. As of August 1, 2017, ClearGraph operates as a subsidiary of Tableau Software, focusing on enhancing data accessibility at scale.

SwiftKey

Series B in 2013
SwiftKey is a technology company based in London, UK, founded in 2008 by Ben Medlock and Jon Reynolds. The company specializes in developing a smart and customizable keyboard application that utilizes artificial intelligence to enhance typing efficiency on mobile devices. By learning from user behavior, SwiftKey's software provides advanced auto-correction and next-word prediction features, which significantly improve typing speed and accuracy. The SwiftKey Keyboard supports over 80 languages, making it a versatile tool for a diverse range of users. Its focus on personalizing the typing experience allows for more contextually aware and relevant suggestions, reflecting individual writing styles.

Raytheon BBN Technologies

Venture Round in 2004
Started in 1948 by MIT professors, BBN Technologies has churned out technologies ranging from packet switching (1969) to the first network email (1971) to the first router (1976). The legendary R&D organization changed hands several times, most recently being acquired by Raytheon on September 1, 2009, following a management-led buyout from Verizon five years earlier. With expertise spanning information security, speech and language processing, networking, distributed systems, and sensing and control systems, BBN scientists and engineers have amassed a substantial collection of innovations and patented solutions.

Perplexity

Perplexity is an AI-driven search engine platform that combines large language models with traditional search engines. It uses natural language processing (NLP) and generative AI to provide conversational responses, bridging the gap between conventional search engines and interactive AI assistance.
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