Company lists · Data refreshed September 2026
Top 25 Sign language interpreters based in the United States
RevenueBase identified 394 sign language interpreters headquartered in the United States as of September 2026 and tracks 23,620 professional contacts across them, including 3,213 with verified work emails and 5,640 with mobile numbers. Austin is the largest hub.
This list covers sign language interpreters headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 6, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest sign language interpreters based in the United States
Ranked by team size| # | Company | RevenueBase Smart Search | Contacts | ||
|---|---|---|---|---|---|
| 1 | Partial evidence | 6,440 contacts → | |||
“LanguageLine Solutions is the world’s leading language solutions company.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 2 | Partial evidence | 5,096 contacts → | |||
“Language Access, Driven by Innovation.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 3 | Partial evidence | 2,863 contacts → | |||
“Sorenson is a global language services providers, combining assistive technology with human-centric accessibility solutions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 4 | Partial evidence | 833 contacts → | |||
“Voyce is a technology driven company, deeply committed to helping people in need facing language barriers, enabling them to easily and quickly communicate and get help.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 5 | Partial evidence | 475 contacts → | |||
“Welcome to Ad Astra, a leading global communication solutions and language services brand.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 6 | Indirect evidence | 388 contacts → | |||
“ClearCaptions was founded in 2011 with a driving force to serve the hard-of-hearing community.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 7 | Partial evidence | 301 contacts → | |||
“Since 1989, Fluent Language Solutions has helped tens of thousands of clients across the country overcome language barriers with the highest quality interpreting and translating…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 8 | Partial evidence | 275 contacts → | |||
“Liberty Language Services is a small, woman- and minority-owned language services agency headquartered in Tysons Corner, Virginia.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 9 | Indirect evidence | 264 contacts → | |||
“ZP is America's leading provider of Video Relay Services (VRS), Video Remote Interpreting (VRI), CART & Captioning Services, and on-site ASL interpreting - born from the union of…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 10 | Partial evidence | 206 contacts → | |||
“Linguava is a full-service provider of spoken and signed languages specializing in Over the Phone Interpretation, Video Remote Interpretation (VRI), Scheduled Video Interpretation…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 11 | Indirect evidence | 153 contacts → | |||
“We provide Video Relay Service and Virtual Interpreting solutions.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 12 | Partial evidence | 153 contacts → | |||
“TIN is a translation and interpreting company that exists to promote communication between and among individuals who speak, write and read different languages.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 13 | Partial evidence | 142 contacts → | |||
“Indianapolis-based LUNA Language Services provides translation and interpreting services for all industries and sectors, public and private.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 14 | Indirect evidence | 130 contacts → | |||
“Aira (pronounced eye ruh) was founded in 2015 to uniquely address the needs of people who are blind or have low vision by providing access to visual information thereby providing…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 15 | Strong evidence | 125 contacts → | |||
“We are a full service agency featuring community interpreting & continuing education providing the highest quality sign language interpreters nationwide.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 16 | Partial evidence | 102 contacts → | |||
“LATN Language Solutions is a comprehensive language services provider headquartered in Atlanta, Georgia.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 17 | Partial evidence | 101 contacts → | |||
“A leading provider of scheduled interpretation (onsite, video, and phone) for both spoken languages and ASL.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 18 | Indirect evidence | 81 contacts → | |||
“InDemand Interpreting provides a comprehensive suite of leading-edge medical interpreting solutions designed to improve communications between clinicians and a growing population…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 19 | Indirect evidence | 79 contacts → | |||
“Cleveland Hearing & Speech Center (CHSC) is the nation’s oldest freestanding speech center, and Northeast Ohio’s only non-profit organization, dedicated solely to serving those…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 20 | Indirect evidence | 76 contacts → | |||
“Cross Cultural Communication Systems, is a recognized authority in linguistic cultural services, working with health care, educational, legal and business institutions nationwide…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 21 | Strong evidence | 64 contacts → | |||
“ASL Interpreting Services (ASLIS) provides live, in-person, sign language interpreters for Deaf, DeafBlind, hard of hearing and hearing individuals throughout Minnesota, western…” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 22 | Indirect evidence | 56 contacts → | |||
“Mission The mission of Deaf Empowerment Awareness Foundation, Inc.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 23 | Indirect evidence | 55 contacts → | |||
“ASL Services Holdings is now a Propio Company.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 24 | Indirect evidence | 54 contacts → | |||
“RISE provides professional interpreting services between the Deaf / Hard of Hearing and people that can hear (Hearing).” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
| 25 | Indirect evidence | 52 contacts → | |||
“Established in 1997, SignTalk®, an Inc.” Source: company website · checked Sep 6, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: sign language interpreters. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names sign language interpreters.
- Partial evidence
- Its own public description names part of sign language interpreters, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name sign language interpreters. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 394 sign language interpreters based in the United States
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Sign language interpreters based in the United States at a glance
As of Sep 6, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among sign language interpreters, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “sign language interpreters”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names sign language interpreters), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among sign language interpreters, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 3,213 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 6, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names sign language interpreters, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many sign language interpreters are there based in the United States?
RevenueBase identified 394 sign language interpreters headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Languageline Solutions, headquartered in Monterey, tops this list with the largest team on record.
Which city has the most sign language interpreters?
Austin leads with 12 headquartered companies, followed by New York (9) and Los Angeles (8).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 3,213 verified decision-maker contacts tracked across these 394 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 6, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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