Company lists · Data refreshed September 2026
Top 25 Sign language training companies based in the United States
RevenueBase identified 100 sign language training companies headquartered in the United States as of September 2026 and tracks 830 professional contacts across them, including 135 with verified work emails. Los Angeles is the largest hub.
This list covers sign language training companies 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 22, 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 training companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 64 contacts → | ||||
Strong evidence “ASL Interpreting Services (ASLIS) provides live, in-person, sign language interpreters for Deaf, DeafBlind, hard of hearing and hearing individuals throughout Minnesota, western…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 52 contacts → | ||||
Indirect evidence “Established in 1997, SignTalk®, an Inc.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 36 contacts → | ||||
Strong evidence “Partners Interpreting is a private, full-service language company that provides a suite of communication access solutions with sign language interpreters and captioning services…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 27 contacts → | ||||
Strong evidence “Providing Quality Services since 1995 as a Deaf-owned and operated company offering sign language interpreting services and CART Services for government, healthcare, legal…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 23 contacts → | ||||
Strong evidence “Cirrus is a leading sign language accessibility firm offering education-focused interpreting, high quality translation, and interpreter education.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 20 contacts → | ||||
Indirect evidence “The Signing Time Academy is the educational division of Two Little Hands Productions, creators of the award-winning Signing Time, Baby Signing Time, Potty Time, Rachel & the…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 18 contacts → | ||||
Strong evidence “Inclusive Communication Services (ICS) was co-founded by two professional sign language interpreters, Shelby and Tyler, with over 14-years of combined experience servicing Deaf…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 16 contacts → | ||||
Strong evidence “American Sign Language Communication is a leading provider of professional sign language interpreting services in Nevada and Utah, with nationwide support.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 14 contacts → | ||||
Strong evidence “ASL Flurry is the only digital language learning enterprise to promote learning of American Sign Language (ASL) and learning through ASL.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 14 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 12 contacts → | ||||
Indirect evidence “At DSPA, we specialize in facilitating communication between Deaf and hearing professionals in high-tech companies all over the world.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 11 contacts → | ||||
Strong evidence “Visually Speaking is a Deafqueer-owned and operated business with a special interest in offering American Sign Language (ASL) education to communities and workplaces throughout…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 10 contacts → | ||||
Strong evidence “The ASL Shop is a Deaf woman-owned company making American Sign Language and belonging part of everyday life.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 10 contacts → | ||||
Partial evidence “Sign-Speak is a Deaf-led company on a mission to innovate and connect people anywhere, anytime, making moments one sign at a time.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 8 contacts → | ||||
Indirect evidence “MyASLTeacherROCKs LLC, founded in 2019, is dedicated to promoting inclusion and accessibility for the Deaf and hard-of-hearing communities.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 7 contacts → | ||||
Indirect evidence “Who is HASA?” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 6 contacts → | ||||
Indirect evidence “S&L THERAPY is an individual & family services company based out of 68 HARVARD ST, BROOKLINE, Massachusetts, United States.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 6 contacts → | ||||
Strong evidence “Deaf Access provides qualified American Sign Language interpreters for a variety of settings.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 5 contacts → | ||||
Strong evidence “ASLdeafined is an online American Sign Language Program for anyone with an interest in learning ASL.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 5 contacts → | ||||
Strong evidence “We secure sign language interpreting services for the Deaf and Hard of Hearing community.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 4 contacts → | ||||
Strong evidence “Sign Language interpreting for international content and settings.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 4 contacts → | ||||
Indirect evidence “ASL Request established in 2013 and incorporated in March of 2017 in Maryland as a LLC is managed by Brian Ambrose who is a certified self-employed hearing interpreter.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 4 contacts → | ||||
Strong evidence “A VOICE - Language & Training Services, LLC is a women and minority-owned business based in Westchester County, New York.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 4 contacts → | ||||
Strong evidence “At With Direction, LLC, we are redefining communication access and advancing equity through innovative sign language interpreting, education, and consulting services.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 3 contacts → | ||||
Strong evidence “There has never been an easier way to learn American Sign Language online.” Source: RevenueBase Database · checked Sep 22, 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 training companies. 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 training companies.
- Partial evidence
- Its own public description names part of sign language training companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name sign language training companies. 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 100 sign language training companies based in the United States
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Sign language training companies based in the United States at a glance
As of Sep 22, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 100 companies.
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 training companies, 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 training companies”. 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 training companies), 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 training companies, 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, 135 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 22, 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 training companies, 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 training companies are there based in the United States?
RevenueBase identified 100 sign language training companies 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?
ASL Interpreting Services Aslis, headquartered in Golden Valley, tops this list with the largest team on record.
Which city has the most sign language training companies?
Los Angeles leads with 4 headquartered companies, followed by Austin (3) and Chicago (3).
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 135 verified decision-maker contacts tracked across these 100 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 22, 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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