Speech recognition companies harness advanced algorithms to convert spoken language into digital text. This technology spans industries like telecommunications, automotive, and healthcare, enabling improved user interaction and accessibility. The market is rapidly evolving with AI enhancements, driving demand for more accurate and real-time speech processing solutions. Moreover, cutting-edge applications in voice-assistants and customer service automation highlight the industry's commitment to innovation. Companies are now exploring multilingual capabilities to cater to a global audience and enhance user engagement.

The companies listed here vary in size from 11 to 500 employees and are located across several countries, including the USA, UK, and South Korea. Founded between 1993 and 2023, they specialize in products like speech-to-text tools, voice recognition software, and artificial intelligence solutions for diverse client needs. With their bases in technology hubs, these firms represent a significant range of experience, from established players to emerging innovators seeking to disrupt the market.

Read on to discover the top speech recognition companies.

Top 18 Speech Recognition Companies

1. Speechmatics

• Website: speechmatics.com
• Ownership type: Private Equity
• Headquarters: Cambridge, England, United Kingdom (UK)
• Employee distribution: United Kingdom (UK) 94%, United States (USA) 3%, Other 3%
• Latest funding: September 2022
• Founded year: 2006
• Headcount: 51-200
• LinkedIn: speechmatics

Speechmatics, founded in 2006 and based in Cambridge, England, is a private equity-backed company specializing in automatic speech recognition (ASR) and AI-driven solutions. With a workforce of approximately 117 employees, the company has carved out a niche in providing advanced speech-to-text APIs and summarization tools. Their technology is utilized across various sectors, including telecommunications, media, and education, enhancing communication and accessibility for clients. Speechmatics processes an impressive volume of audio, transcribing around 500 years of audio monthly, and is known for its high accuracy in real-time transcription, even in challenging environments. The company supports over 50 languages, allowing businesses to reach a broader audience. Speechmatics has also formed strategic partnerships to integrate its technology into various platforms, further solidifying its position in the speech recognition industry.

2. Sensory, Inc.

• Website: sensory.com
• Ownership type: Venture Capital
• Headquarters: Santa Clara, California, United States (USA)
• Employee distribution: United States (USA) 84%, China 5%, Japan 5%, Other 5%
• Latest funding: $400,000, November 2001
• Founded year: 1994
• Headcount: 51-200
• LinkedIn: sensory-inc-

Sensory, Inc., founded in 1994 and based in Santa Clara, California, is a technology company that specializes in voice AI and biometric solutions. The firm develops and licenses advanced technologies that cater to industries such as automotive, healthcare, and consumer electronics. Sensory's focus is on enhancing user experiences through embedded speech recognition and natural language processing solutions. Their offerings include wake word recognition, sound identification, and speaker verification, all designed to operate efficiently on-device. This approach not only improves performance but also addresses privacy concerns by ensuring that voice data does not leave the device. Sensory's technology has been integrated into over three billion products globally, showcasing their significant impact in the speech recognition industry. The company has a workforce of approximately 58 employees and has received funding, although the last reported funding was in 2001.

3. AssemblyAI

• Website: assemblyai.com
• Ownership type: Venture Capital
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: United States (USA) 73%, Switzerland 5%, Canada 5%, Other 16%
• Latest funding: Series C, $50.0M, December 2023
• Founded year: 2017
• Headcount: 51-200
• LinkedIn: assemblyai

AssemblyAI is a technology company based in San Francisco, California, specializing in Speech AI. Founded in 2017, the company focuses on providing advanced speech-to-text transcription, streaming speech-to-text, and speech understanding services tailored for developers and businesses. Their solutions are designed to enhance products with accurate voice recognition and audio intelligence, catering to a variety of industries. AssemblyAI has gained recognition for its high accuracy rates, achieving up to 95% in speech-to-text models, and has been noted for its low latency in processing audio. The company recently secured $50 million in Series C funding, reflecting its growth trajectory and the confidence investors have in its innovative approach to speech technology. With a commitment to continuous improvement and a developer-friendly API, AssemblyAI is positioned to meet the evolving needs of the market.

4. Deepgram

• Website: deepgram.com
• Ownership type: Venture Capital
• Headquarters: San Francisco, California, United States (USA)
• Employee distribution: United States (USA) 77%, Philippines 13%, Canada 3%, Other 7%
• Latest funding: Series B, $47.0M, November 2022
• Founded year: 2015
• Headcount: 51-200
• LinkedIn: deepgram

Deepgram is a voice AI company based in San Francisco, California, founded in 2015. The company specializes in advanced speech recognition and audio intelligence solutions, providing APIs for both speech-to-text and text-to-speech functionalities. Their technology is particularly beneficial for businesses in sectors like healthcare and customer service, where accurate voice data processing is critical. Deepgram's products are designed to enhance voice interactions, enabling organizations to improve operational efficiency and accuracy. The company has gained traction in the industry, evidenced by its recent Series B funding round, which raised $47 million in November 2022. This financial support underscores the market's recognition of Deepgram's innovative approach to voice technology and its potential for future growth.

5. Return Zero

• Website: rtzr.ai
• Ownership type: Private
• Headquarters: Seoul, Seoul, South Korea
• Employee distribution: South Korea 100%
• Founded year: 2018
• Headcount: 51-200
• LinkedIn: rtzr

Return Zero Inc., founded in 2018 and based in Seoul, South Korea, is a private technology firm that specializes in artificial intelligence and speech recognition solutions. The company offers products such as RTZR STT, which is designed for businesses needing efficient speech processing. Their clientele includes major financial institutions and public agencies, showcasing their capability to handle complex speech recognition tasks. Additionally, Return Zero has developed consumer-focused applications like VITO, an Android app that transcribes calls and makes them searchable. With over 15 million hours of voice data processed, Return Zero has established itself as a significant player in the Korean market, providing advanced speech recognition technology that is both accurate and cost-effective. The company has not reported any recent funding, indicating a self-sustaining operational model as they continue to innovate in the AI space.

6. Lingvanex | Machine Translation for Businesses

• Website: lingvanex.com
• Ownership type: Private
• Headquarters: Larnaca, Larnaca, Cyprus
• Employee distribution: Cyprus 94%, Belarus 6%
• Founded year: 2016
• Headcount: 11-50
• LinkedIn: lingvanex

Lingvanex | Machine Translation for Businesses is a private company based in Larnaca, Cyprus, founded in 2016. With a workforce of 11-50 employees, Lingvanex focuses on language technology, particularly in machine translation and speech recognition. The company provides a range of products, including translation APIs and SDKs, aimed at businesses and organizations that require effective multilingual communication. Their offerings leverage advanced artificial intelligence to improve translation quality and efficiency. Lingvanex's solutions are utilized across various sectors, including education, finance, healthcare, and media, highlighting their adaptability and relevance in the language technology industry. They also provide on-premise and cloud-based solutions, ensuring data security and integration flexibility for their clients.

7. Asr Gooyesh Pardaz

• Website: asr-gooyesh.com
• Ownership type: Private
• Headquarters: Tehran, Tehran, Iran
• Employee distribution: Iran 100%
• Founded year: 2003
• Headcount: 11-50
• LinkedIn: asr-gooyesh-pardaz-co-

Asr Gooyesh Pardaz, founded in 2003 and based in Tehran, Iran, is a private company that specializes in artificial intelligence and language processing solutions for the Persian language. With a team of 36 employees, the company has carved out a niche in the speech recognition industry by offering products such as speech-to-text, text-to-speech, and voice identification systems. Their solutions are designed to meet the needs of various businesses and organizations, helping them improve efficiency and productivity through advanced AI technologies. Asr Gooyesh Pardaz operates an online store that provides software and related equipment, further extending their reach in the market. The company has also engaged in numerous AI projects, showcasing their commitment to innovation and development in the field of language processing. Their focus on the Persian language positions them uniquely in a market that often lacks tailored solutions for non-English languages.

8. Régens

• Website: regens.com
• Ownership type: Private
• Headquarters: Budapest, Budapest, Hungary
• Employee distribution: Hungary 100%
• Founded year: 1993
• Headcount: 11-50
• LinkedIn: regens

Régens, founded in 1993 and based in Budapest, Hungary, is a private technology firm that specializes in artificial intelligence solutions. With a workforce of around 56 employees, the company has carved out a niche in the AI sector, particularly in speech recognition and natural language processing. Régens offers a range of services, including the development of custom AI models tailored to the specific needs of their clients. Their flagship product, Alrite, is an advanced speech-to-text application that provides accurate transcription services, making it a valuable tool for various sectors such as education, media, and public administration. The company has built a reputation for delivering impactful digital solutions and has worked with a variety of organizations to enhance productivity and accessibility through AI technology.

9. DataBaker Technology

• Website: data-baker.com
• Ownership type: Private
• Headquarters: Haidian, Beijing, China
• Employee distribution: China 100%
• Founded year: 2016
• Headcount: 51-200
• LinkedIn: biaobeikeji

DataBaker Technology, established in 2016 and based in Haidian, Beijing, China, focuses on intelligent voice interaction and AI data services. The company offers a range of products that include advanced voice recognition and synthesis solutions. Their technology supports real-time transcription for both short and long audio inputs, catering to businesses looking to enhance customer engagement through voice-driven interactions. DataBaker also provides offline transcription services for recorded audio files, which broadens their applicability in various sectors. Their self-learning tools are designed to improve recognition accuracy in specialized fields, indicating a commitment to continuous improvement and adaptation in their technology. The company operates entirely within China and has not reported any funding, suggesting a self-sustained growth model. Overall, DataBaker Technology is actively contributing to the speech recognition industry with innovative solutions tailored to meet the needs of modern businesses.

10. Llsollu

• Website: llsollu.com
• Ownership type: Private
• Headquarters: Seocho, Seoul, South Korea
• Employee distribution: South Korea 100%
• Founded year: 2005
• Headcount: 11-50
• LinkedIn: language-life-solution

Llsollu, based in Seocho, Seoul, South Korea, is a private AI technology company founded in 2005. The firm specializes in language processing solutions, offering a range of products that include speech recognition, machine translation, and natural language processing services. Llsollu aims to improve communication and operational efficiency for businesses and organizations across various sectors, tackling the challenges posed by language barriers in a globalized world. With a workforce of 35 employees, the company has developed notable technologies such as ezDAS, a speech recognition solution that converts spoken language into text, and ezTalky, a mobile application that provides real-time translation and interpretation. Their commitment to innovation is evident through their recent collaborations and projects, including the development of a high-performance Korean speaker verification system in partnership with Korea University. Llsollu's focus on AI-driven language solutions positions them as a significant player in the speech recognition industry.

11. Voicebox Technologies Corporation

• Website: voicebox.com
• Ownership type: Corporate
• Headquarters: Bellevue, Washington, United States (USA)
• Employee distribution: United States (USA) 83%, France 8%, Japan 8%
• Latest funding: May 2018
• Founded year: 2001
• Headcount: 201-500
• LinkedIn: voicebox-technologies

Voicebox Technologies Corporation, operating under the brand Nuance Communications, is a technology company based in Bellevue, Washington. Founded in 2001, the company specializes in AI-driven solutions, particularly in the field of speech recognition. Their flagship products, such as the Dragon series, are designed to improve productivity by enabling users to create documentation and reports through voice commands. This technology is particularly beneficial in sectors like healthcare, where accurate and efficient documentation is critical. Nuance also provides solutions for customer engagement and has a significant presence in the government sector, offering tailored services that enhance operational efficiency. With a workforce of around 37 employees and a global reach, Voicebox Technologies continues to play a vital role in the speech recognition industry, adapting to the evolving needs of its clients.

12. Cobalt Speech & Language

• Website: cobaltspeech.com
• Ownership type: Venture Capital
• Headquarters: Tyngsborough, Massachusetts, United States (USA)
• Employee distribution: United States (USA) 89%, Brazil 11%
• Latest funding: May 2025
• Founded year: 2014
• Headcount: 11-50
• LinkedIn: cobalt-speech-%26-language

Cobalt Speech & Language, established in 2014 and based in Tyngsborough, Massachusetts, is a provider of advanced speech technology solutions. The company focuses on AI-driven applications that cater to various industries, including healthcare, government, and financial services. Their product suite includes tools for speech recognition, transcription, voice user interfaces, and voice intelligence, aimed at improving communication and operational efficiency. Cobalt's technology is designed to address specific challenges faced by clients, enhancing customer engagement and experience. The company is led by Jeff Adams, who has a notable background in speech technology, having contributed to the development of Amazon's Alexa. Cobalt's innovative approach and commitment to privacy, ensuring that data remains secure and on-premises, further solidify its position in the speech technology sector.

13. iFLYTEK Open Platform

• Website: global.xfyun.cn
• Ownership type: Private
• Headquarters: Hefei, Anhui, China
• Employee distribution: Malaysia 50%, China 50%
• Founded year: 2010
• Headcount: 201-500
• LinkedIn: iflytek-open-platform

iFLYTEK Open Platform, founded in 2010 and based in Hefei, Anhui, China, is a private technology company that specializes in artificial intelligence solutions. The company has carved out a niche in the speech recognition industry, offering a range of products that include automated speech recognition (ASR), text-to-speech (TTS), and machine translation services. iFLYTEK's technology is designed to enhance operational efficiency and improve communication for businesses and organizations. Their speech recognition capabilities are applicable in various scenarios, from real-time transcription for meetings to voice command control in applications. The company also provides customized AI solutions tailored to specific industry needs, demonstrating its adaptability and focus on customer service. With a workforce that is evenly distributed between China and Malaysia, iFLYTEK is positioned to serve a broad market, although it has not reported any recent funding activities.

14. Voci Technologies, a Medallia Company

• Website: vocitec.com
• Ownership type: Corporate
• Headquarters: Pittsburgh, Pennsylvania, United States (USA)
• Employee distribution: United States (USA) 100%
• Latest funding: $59.0M, April 2020
• Founded year: 2010
• Headcount: 51-200
• LinkedIn: voci-technologies

Voci Technologies, a Medallia Company, is a technology firm based in Pittsburgh, Pennsylvania, that specializes in Automatic Speech Recognition (ASR) solutions specifically designed for contact centers. Founded in 2010, Voci has carved out a niche in the speech recognition industry by providing transcription services that are both fast and accurate, enabling businesses to gain valuable insights from customer interactions. Their offerings include real-time and post-call transcription, enriched with metadata to enhance analytics capabilities. Voci's technology is built to handle the unique challenges of contact center environments, ensuring high accuracy even in noisy settings. The company has successfully transcribed over 1 billion hours of audio and supports more than 30 language models, showcasing its scalability and adaptability. Voci's solutions integrate seamlessly with various telephony systems, making it a flexible choice for organizations looking to improve their customer service operations. In April 2020, Voci Technologies secured $59 million in funding, further solidifying its position in the market and enabling continued innovation in speech recognition technology.

15. SYSTRAN International

• Website: csli.co.kr
• Ownership type: Private
• Headquarters: Seoul, Seoul, South Korea
• Founded year: 1968
• Headcount: 51-200
• LinkedIn: systran-international

SYSTRAN International, now operating under the name LLSOLLU, is an AI technology firm based in Seoul, South Korea. Founded in 1968, the company has evolved to specialize in language processing solutions, offering a range of products that include speech recognition, machine translation, and natural language processing services. Their clientele primarily consists of businesses and organizations across various sectors, utilizing these solutions to improve communication and operational efficiency. LLSOLLU operates on a Software as a Service (SaaS) model, providing accessible software solutions through an open API platform. The company has developed notable products such as ezDAS, a speech recognition solution that converts spoken language into text, and ezTalky, a mobile application that integrates real-time translation and speech recognition. Their commitment to innovation is evident in their collaborations with academic institutions and their focus on enhancing the quality of their speech recognition technology.

16. Roshan

• Website: roshan-ai.ir
• Ownership type: Private
• Headquarters: Tehran, Tehran, Iran
• Employee distribution: Iran 95%, Saudi Arabia 5%
• Founded year: 2016
• Headcount: 11-50
• LinkedIn: roshan-ai

Roshan, founded in 2016 and based in Tehran, Iran, is a private technology firm that specializes in artificial intelligence and language processing solutions. The company has developed several products aimed at improving operational efficiency for businesses and organizations. Among these products is 'Harf', a speech-to-text conversion tool that accurately transforms spoken language into editable text. This product caters to various applications, including transcription services and voice interaction systems. Additionally, Roshan offers 'Reply' for user query responses and 'Alefba' for text recognition, showcasing their commitment to enhancing language processing capabilities. With a workforce of around 74 employees, Roshan primarily serves clients in Iran, with a small presence in Saudi Arabia, indicating a focused market approach. The company has not reported any funding, suggesting it operates independently in its growth strategy.

17. Voiceitt

• Website: voiceitt.com
• Ownership type: Venture Capital
• Headquarters: Ramat Gan, Tel Aviv, Israel
• Employee distribution: Israel 43%, United States (USA) 29%, Czech Republic 14%, Other 14%
• Latest funding: $4.7M, December 2022
• Founded year: 2012
• Headcount: 11-50
• LinkedIn: voiceitt

Voiceitt, founded in 2012 and based in Ramat Gan, Tel Aviv, Israel, is a technology company dedicated to creating assistive communication solutions for individuals with speech disabilities. The company specializes in innovative speech recognition software that enables users to communicate effectively across various platforms. Their primary customers include individuals with speech impairments and organizations that support them. Voiceitt's mission is to enhance communication accessibility and independence through tailored technology solutions. The company has received significant funding, with a reported amount of $4.7 million in its last funding round in December 2022. Voiceitt's technology is designed to recognize non-standard speech, making it a valuable tool for aging adults, accented speakers, and those with speech disabilities. Their products integrate with popular communication platforms, allowing for real-time captioning and transcription, which enhances the user experience in professional and personal settings. Voiceitt's commitment to improving communication for those with unique speech patterns positions it as a relevant player in the speech recognition industry.

18. AppTek.ai

• Website: apptek.ai
• Ownership type: Family Owned
• Headquarters: Mclean, Virginia, United States (USA)
• Employee distribution: Germany 52%, United States (USA) 38%, Jordan 5%, Other 5%
• Founded year: 1990
• Headcount: 51-200
• LinkedIn: apptek

AppTek.ai, based in McLean, Virginia, is a technology company founded in 1990 that specializes in artificial intelligence and machine learning solutions. The company offers a range of products, including automatic speech recognition (ASR), neural machine translation, and text-to-speech technologies. AppTek.ai serves various industries, such as media and entertainment, government, and customer engagement, providing tools that enhance communication and accessibility across multiple languages and formats. Their ASR technology utilizes deep neural networks to deliver precise transcriptions from a variety of audio sources, supporting dozens of languages and dialects. AppTek.ai is also involved in significant partnerships, such as their collaboration with Gallaudet University to develop accessible applications for the deaf and hard of hearing. This initiative reflects their commitment to creating inclusive technology solutions. Additionally, the company has been recognized in industry reports, further solidifying its position in the speech recognition sector.

Speech Recognition Insights: Key Companies

Company	Headquarter	Size	Founded	Ownership
Speechmatics	Cambridge, England, United Kingdom (UK)	51-200	2006	Private Equity
Sensory, Inc.	Santa Clara, California, United States (USA)	51-200	1994	Venture Capital
AssemblyAI	San Francisco, California, United States (USA)	51-200	2017	Venture Capital
Deepgram	San Francisco, California, United States (USA)	51-200	2015	Venture Capital
Return Zero	Seoul, Seoul, South Korea	51-200	2018	Private
Lingvanex | Machine Translation for Businesses	Larnaca, Larnaca, Cyprus	11-50	2016	Private
Asr Gooyesh Pardaz	Tehran, Tehran, Iran	11-50	2003	Private
Régens	Budapest, Budapest, Hungary	11-50	1993	Private
DataBaker Technology	Haidian, Beijing, China	51-200	2016	Private
Llsollu	Seocho, Seoul, South Korea	11-50	2005	Private
Voicebox Technologies Corporation	Bellevue, Washington, United States (USA)	201-500	2001	Corporate
Cobalt Speech & Language	Tyngsborough, Massachusetts, United States (USA)	11-50	2014	Venture Capital
iFLYTEK Open Platform	Hefei, Anhui, China	201-500	2010	Private
Voci Technologies, a Medallia Company	Pittsburgh, Pennsylvania, United States (USA)	51-200	2010	Corporate
SYSTRAN International	Seoul, Seoul, South Korea	51-200	1968	Private
Roshan	Tehran, Tehran, Iran	11-50	2016	Private
Voiceitt	Ramat Gan, Tel Aviv, Israel	11-50	2012	Venture Capital
AppTek.ai	Mclean, Virginia, United States (USA)	51-200	1990	Family Owned

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