Company lists · Data refreshed September 2026

Top 25 Sign language training companies worldwide

RevenueBase identified 408 company matches for sign language training companies worldwide as of September 2026 and tracks 2,336 professional contacts across them, including 370 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for sign language training companies worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 22, 2026. Country and city lists for sign language training companies follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 22, 2026 How this list was built
408Companies
2,336Contacts tracked
370Verified emails
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The 25 largest sign language training companies worldwide

Ranked by team size
Top 25 of 408 company matches for sign language training companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 22, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchHigh Wycombe, United KingdomHQ recorded Sep 22, 202611-50123 contacts →

Exact match

“Silent Sounds Communications Limited is a private organisation based in High Wycombe.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
2Exact matchOttawa, ON, CanadaHQ recorded Sep 22, 202651-20064 contacts →

Exact match

“Who are we?”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
3Exact matchGolden Valley, MN, United StatesHQ recorded Sep 22, 202611-5064 contacts →

Exact match

“ASL Interpreting Services (ASLIS) provides live, in-person, sign language interpreters for Deaf, DeafBlind, hard of hearing and hearing individuals throughout Minnesota, western…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
4Exact matchSao Paulo, BrazilHQ recorded Sep 22, 202651-20061 contacts →

Exact match

“Educalibras é empresa pioneira e líder no mercado de inclusão e acessibilidade comunicacional às pessoas surdas e surdocegas.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
5Exact matchBrooklyn, NY, United StatesHQ recorded Sep 22, 202611-5052 contacts →

Exact match

“Established in 1997, SignTalk®, an Inc.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
6Exact matchUnited StatesHQ recorded Sep 22, 202651-20047 contacts →

Exact match

“A HUB/ WBE/ WOSB Certified, award winning Sign Language Interpreting Agency that specializes in providing State/Nationally certified Sign Language & Oral Interpreters for all…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
7Exact matchNorth Attleboro, MA, United StatesHQ recorded Sep 22, 2026201-50036 contacts →

Exact match

“Partners Interpreting is a private, full-service language company that provides a suite of communication access solutions with sign language interpreters and captioning services…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
8Exact matchLeeds, United KingdomHQ recorded Sep 22, 202611-5035 contacts →

Exact match

“We have been providing independent professional communication services for hard of hearing and deaf people since 2002.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
9Exact matchVienna, AustriaHQ recorded Sep 22, 202611-5028 contacts →

Exact match

“Our mission is to break down language barriers and build bridges between Deaf and hearing people.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
10Exact matchWarszawa, PolandHQ recorded Sep 22, 202611-5028 contacts →

Exact match

“Overview 5% of the world’s population - more or less 360 million people - have disabling hearing loss, according to the World Health Organization.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
11Exact matchSilver Spring, MD, United StatesHQ recorded Sep 22, 202651-20027 contacts →

Exact match

“Providing Quality Services since 1995 as a Deaf-owned and operated company offering sign language interpreting services and CART Services for government, healthcare, legal…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
12Exact matchVienna, AustriaHQ recorded Sep 22, 202651-20024 contacts →

Exact match

“equalizent Wien bietet Schulungen und Beratung in Gebärdensprache an.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
13Exact matchSt. Augustine, FL, United StatesHQ recorded Sep 22, 202611-5023 contacts →

Exact match

“Cirrus is a leading sign language accessibility firm offering education-focused interpreting, high quality translation, and interpreter education.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
14Exact matchMidvale, UT, United StatesHQ recorded Sep 22, 20261-1020 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
15Exact matchNice, FranceHQ recorded Sep 22, 202611-5019 contacts →

Exact match

“Digilangues accompagne les particuliers et entreprises dans le développement de compétences linguistiques ciblées pour l’atteinte de leurs objectifs personnels et/ou…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
16Exact matchÖrebro, SwedenHQ recorded Sep 22, 202651-20018 contacts →

Exact match

“Teckenspråkstolkning”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
17Exact matchNY, United StatesHQ recorded Sep 22, 20261-1018 contacts →

Exact match

“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…”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
18Exact matchEngland, United KingdomHQ recorded Sep 22, 202611-5016 contacts →

Exact match

“Positive Signs provides communication support services, interpreting services, sign language training and advice on employment including Access to Work.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
19Exact matchHenderson, NV, United StatesHQ recorded Sep 22, 202651-20016 contacts →

Exact match

“American Sign Language Communication is a leading provider of professional sign language interpreting services in Nevada and Utah, with nationwide support.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
20Exact matchSan Diego, CA, United StatesHQ recorded Sep 22, 20261-1014 contacts →

Exact match

“ASL Flurry is the only digital language learning enterprise to promote learning of American Sign Language (ASL) and learning through ASL.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
21Exact matchUnited StatesHQ recorded Sep 22, 20261-1014 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
22Exact matchWest Bromwich, United KingdomHQ recorded Sep 22, 202651-20014 contacts →

Exact match

“SDCA aim to actively encourage, empower and enrich the lives of deaf and hard of hearing people in Sandwell by providing accessible community-based services.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
23Exact matchGreenfield, WI, United StatesHQ recorded Sep 22, 20261-1014 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
24Exact matchLondon, United KingdomHQ recorded Sep 22, 202651-20013 contacts →

Exact match

“InSignLanguage is a UK-based accessibility tech company on a mission to make communication inclusive for the Deaf and hard-of-hearing community.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase
25Exact matchPalo Alto, CA, United StatesHQ recorded Sep 22, 20261-1012 contacts →

Exact match

“At DSPA, we specialize in facilitating communication between Deaf and hearing professionals in high-tech companies all over the world.”

Recorded in the RevenueBase company graph · Sep 22, 2026 · View company records in RevenueBase

Showing 25 of 408 sign language training companies worldwide

See the full list, filter by size, metro and specialty, and access 370 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Sign language training companies worldwide at a glance

As of Sep 22, 2026
15.8%Verified-email coverage
5.7Average contacts per company
1-10Median size (employees)
3.4%Largest-city concentration · London
Sep 22, 2026Page data refreshed

Companies by employee count

1-10
320
11-50
61
51-200
21
201-500
3
501-1,000
2

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
Coverage
Every country. Country and city lists for sign language training companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “sign language training companies” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 370 professional contacts with verified work emails across the full matched dataset. 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.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Sign language training companies by location

2 lists · largest first

Every Sign language training companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “sign language training companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many sign language training companies are there worldwide?

RevenueBase identified 408 company matches for sign language training companies worldwide as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Silent Sounds Communications LTD tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most sign language training companies?

The United States leads with 100 companies, followed by the United Kingdom (67). Every sign language training companies list by country and city is linked on this page.

Which city has the most sign language training companies?

London leads with 14 company records, followed by Toulouse (6) and Paris (5).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 370 professional contacts with verified work emails tracked across these 408 companies; direct dials are available where recorded.

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 SmartSearch, 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.