Company lists · Data refreshed September 2026
Top 25 Deaf communication consultants worldwide
RevenueBase identified 901 deaf communication consultants worldwide as of September 2026 and tracks 13,752 professional contacts across them, including 4,221 with verified work emails. The United States is the largest market and London the largest hub.
This list covers deaf communication consultants worldwide, 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 19, 2026. Country and city lists for deaf communication consultants follow the table.
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 deaf communication consultants worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 2,863 contacts → | ||||
Indirect evidence “Sorenson is a global language services providers, combining assistive technology with human-centric accessibility solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 574 contacts → | ||||
Strong evidence “Communication Service for the Deaf, Inc.(CSD) is a private, nonprofit organization dedicated to creating and providing technologies and services that benefit the deaf and hard of…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 475 contacts → | ||||
Partial evidence “Welcome to Ad Astra, a leading global communication solutions and language services brand.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 388 contacts → | ||||
Indirect evidence “ClearCaptions was founded in 2011 with a driving force to serve the hard-of-hearing community.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 275 contacts → | ||||
Indirect evidence “Liberty Language Services is a small, woman- and minority-owned language services agency headquartered in Tysons Corner, Virginia.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 261 contacts → | ||||
Partial evidence “For over 80 years, Canadian Hearing Services (CHS) has played a significant role in supporting and meeting the needs of Deaf and hard of hearing Canadians.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 215 contacts → | ||||
Indirect evidence “Geestelijke Gezondheidszorg en Maatschappelijke Dienstverlening voor Doven en Slechthorenden- Maatschappelijk werk - Woonbegeleiding - Geestelijke gezondheidszorg -…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 163 contacts → | ||||
Indirect evidence “CFD er landets største leverandør af serviceydelser til døve samt mennesker med høretab og med syns- og høretab - evt.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 150 contacts → | ||||
Indirect evidence “A SHOWCASE é uma empresa jovem e forte que, pautada no respeito e colaboração, busca inovação e simplicidade para solucionar problemas de implantação e operação de acessibilidade…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 143 contacts → | ||||
Indirect evidence “Signo ble startet i 1898 av Conrad Svendsen, Norges første døveprest.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 133 contacts → | ||||
Partial evidence “DeafBlind Ontario Services takes a holistic approach to providing an array of services to people who are Deaf, hard of hearing, non-verbal and deafblind that are customized to…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 133 contacts → | ||||
Partial evidence “DeafLEAD envisions a future where Deaf, Hard of Hearing, DeafBlind, Late-Deafened, and Deaf-Disabled people no longer have to fight for access, equity, or inclusion-because their…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 132 contacts → | ||||
Partial evidence “Inspiring Knowledge, Opportunity, and Power The Learning Center for the Deaf is a national model and leader in educational, therapeutic, and community services for, by, and with…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 125 contacts → | ||||
Indirect evidence “We are a full service agency featuring community interpreting & continuing education providing the highest quality sign language interpreters nationwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 119 contacts → | ||||
Partial evidence “Expression Australia is a not-for-profit organisation that has been serving the Deaf community since 1884.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 114 contacts → | ||||
Partial evidence “For nearly 100 years, Gateway (formerly HASA) has been Maryland’s leading resource for language and communication services.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 99 contacts → | ||||
Partial evidence “We are is a national organisation providing education services for Deaf and Hard of Hearing learners, from early childhood through to transition to the workforce.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 87 contacts → | ||||
Indirect evidence “Our goal is to provide a door for everyone with speech and hearing problems that they can knock for help!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 79 contacts → | ||||
Indirect evidence “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: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 79 contacts → | ||||
Indirect evidence “20dB Hearing is the leading hearing care provider in Malaysia and Singapore, dedicated to helping individuals rediscover the joy of sound through personalised, professional care.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 75 contacts → | ||||
Indirect evidence “نوفر حلول تقنية وخدمات استشارية لتجويد و زيادة الوصول للخدمات المقدمة لذوي الاحتياجات الخاصة” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 65 contacts → | ||||
Partial evidence “It is the mission of the Bob Rumball Organizations to provide care and opportunities in a communication-rich environment that enhances the quality of life of those we serve.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 64 contacts → | ||||
Indirect evidence “Who are we?” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 61 contacts → | ||||
Indirect evidence “Educalibras é empresa pioneira e líder no mercado de inclusão e acessibilidade comunicacional às pessoas surdas e surdocegas.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 57 contacts → | ||||
Partial evidence “The leading organisation in advocating equal opportunity, in all aspects, for the Deaf & to assist the Deaf to achieve a better quality of life and to enable them to integrate and…” Source: RevenueBase Database · checked Sep 19, 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: deaf communication consultants. 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 deaf communication consultants.
- Partial evidence
- Its own public description names part of deaf communication consultants, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name deaf communication consultants. 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 901 deaf communication consultants worldwide
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Deaf communication consultants worldwide at a glance
As of Sep 19, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 deaf communication consultants, 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.
- Coverage
- Every country. Country and city lists for deaf communication consultants are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “deaf communication consultants”. 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 deaf communication consultants), 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 deaf communication consultants, and records with no verified work email.
- 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, 4,221 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 19, 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.
Deaf communication consultants by location
4 lists · largest firstEvery Deaf communication consultants 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 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 deaf communication consultants, 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 deaf communication consultants are there worldwide?
RevenueBase identified 901 deaf communication consultants worldwide 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?
Sorenson Communications, headquartered in Salt Lake City, tops this list with the largest team on record.
Which country has the most deaf communication consultants?
The United States leads with 318 companies, followed by the United Kingdom (67) and Canada (49). Every deaf communication consultants list by country and city is linked on this page.
Which city has the most deaf communication consultants?
London leads with 18 headquartered companies, followed by Sao Paulo (17) and Austin (12).
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 4,221 verified decision-maker contacts tracked across these 901 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 19, 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.