Company lists · Data refreshed September 2026

Top 25 Deaf interpreting agencies based in the United States

Name: Deaf interpreting agencies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 529 companies tracked

RevenueBase identified 529 deaf interpreting agencies headquartered in the United States as of September 2026 and tracks 24,677 professional contacts across them, including 3,611 with verified work emails and 6,282 with mobile numbers. Austin is the largest hub.

This list covers deaf interpreting agencies 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 1, 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.

How to read this list RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

529Companies

24,677Contacts tracked

3,611Verified emails

6,282Mobile numbers

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The 25 largest deaf interpreting agencies based in the United States

Ranked by team size

Top 25 of 529 deaf interpreting agencies based in the United States, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to deaf interpreting agencies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Languageline Solutions	Indirect evidence	Monterey, CA, United States	10001+	6,355 contacts →
	Indirect evidence “LanguageLine Solutions is the world’s leading language solutions company.” Source: RevenueBase Database · checked Sep 1, 2026
2	Propio Language Services	Indirect evidence	Overland Park, KS, United States	n/a	4,992 contacts →
	Indirect evidence “Propio's mission is to innovate and connect people anywhere, anytime.” Source: RevenueBase Database · checked Sep 1, 2026
3	Sorenson Communications	Indirect evidence	Salt Lake City, UT, United States	10001+	2,889 contacts →
	Indirect evidence “Sorenson is a global language services providers, combining assistive technology with human-centric accessibility solutions.” Source: RevenueBase Database · checked Sep 1, 2026
4	Communication Service For The Deaf CSD	Partial evidence	Austin, TX, United States	1,001-5,000	573 contacts →
	Partial 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 1, 2026
5	AD Astra, INC	Indirect evidence	Silver Spring, MD, United States	201-500	464 contacts →
	Indirect evidence “Welcome to Ad Astra, a leading global communication solutions and language services brand.” Source: RevenueBase Database · checked Sep 1, 2026
6	Clearcaptions, LLC	Indirect evidence	Antioch, TN, United States	501-1,000	386 contacts →
	Indirect evidence “ClearCaptions was founded in 2011 with a driving force to serve the hard-of-hearing community.” Source: RevenueBase Database · checked Sep 1, 2026
7	ZVRS	Indirect evidence	Austin, TX, United States	1,001-5,000	263 contacts →
	Indirect evidence “ZP offers customers the best videophone technology along with nationally certified interpreters and features not available through other VRS providers.” Source: RevenueBase Database · checked Sep 1, 2026
8	Linguava	Indirect evidence	Portland, OR, United States	51-200	201 contacts →
	Indirect evidence “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: RevenueBase Database · checked Sep 1, 2026
9	Convo Communications	Partial evidence	Austin, TX, United States	201-500	159 contacts →
	Partial evidence “We provide Video Relay Service and Virtual Interpreting solutions.” Source: RevenueBase Database · checked Sep 1, 2026
10	Deaflead	Partial evidence	Columbia, MO, United States	201-500	134 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 1, 2026
11	The Learning Center For The Deaf	Partial evidence	Framingham, MA, United States	201-500	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 1, 2026
12	Interpretek	Partial evidence	Atlanta, GA, United States	51-200	121 contacts →
	Partial 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 1, 2026
13	Strategies To Empower People	Indirect evidence	Sacramento, CA, United States	501-1,000	96 contacts →
	Indirect evidence “Strategies to Empower People is an agency that supports Intellectually and/or Developmentally Disabled adults in the greater Sacramento area, North Bay area, and…” Source: RevenueBase Database · checked Sep 1, 2026
14	Indemand Interpreting	Partial evidence	Tukwila, WA, United States	201-500	81 contacts →
	Partial evidence “InDemand Interpreting provides a comprehensive suite of leading-edge medical interpreting solutions designed to improve communications between clinicians and a growing population…” Source: RevenueBase Database · checked Sep 1, 2026
15	Mill Neck Family Of Organizations	Partial evidence	Mill Neck, NY, United States	201-500	78 contacts →
	Partial evidence “The Mill Neck Family of Organizations enhances the quality of life for people, from infancy through adulthood, who are Deaf, or who have other special needs, such as autism and…” Source: RevenueBase Database · checked Sep 1, 2026
16	Cleveland Hearing & Speech Center	Indirect evidence	Cleveland, OH, United States	51-200	78 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 1, 2026
17	Pahrtners Deaf Services	Partial evidence	Moon Township, PA, United States	201-500	47 contacts →
	Partial evidence “PAHrtners Deaf Services, established in 2001, offers a wide-range of behavioral, developmental and therapeutic support programs to Deaf and Hard of Hearing individuals in an…” Source: RevenueBase Database · checked Sep 1, 2026
18	Deaf-Reach	Partial evidence	Washington, DC, United States	51-200	42 contacts →
	Partial evidence “Our Mission: Deaf-REACH seeks to maximize the quality of life of Deaf and Hard of Hearing individuals and families through a wide spectrum of services.” Source: RevenueBase Database · checked Sep 1, 2026
19	Door International	Partial evidence	Grand Rapids, MI, United States	201-500	39 contacts →
	Partial evidence “We believe God has called DOOR International to reach the Deaf for Christ through translation, training, and partnerships.” Source: RevenueBase Database · checked Sep 1, 2026
20	Swits, LTD	Partial evidence	Delavan, WI, United States	51-200	39 contacts →
	Partial evidence “Our mission is to provide our clients with professional interpreting and translation services to offer equal language access in any setting.” Source: RevenueBase Database · checked Sep 1, 2026
21	Lifesigns INC	Indirect evidence	Los Angeles, United States	51-200	37 contacts →
	Indirect evidence “LIFESIGNS, Inc.” Source: RevenueBase Database · checked Sep 1, 2026
22	Partners Interpreting	Partial evidence	Hartford, CT, United States	201-500	36 contacts →
	Partial 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 1, 2026
23	Worldwide Interpreters INC	Indirect evidence	Houston, TX, United States	51-200	35 contacts →
	Indirect evidence “has delivered trusted, on-demand language interpretation across business, government, and healthcare.” Source: RevenueBase Database · checked Sep 1, 2026
24	DSN	Indirect evidence	Northwich, United States	51-200	31 contacts →
	Indirect evidence “Welcome to DSN!” Source: RevenueBase Database · checked Sep 1, 2026
25	Graham INC	Indirect evidence	Orlando, FL, United States	51-200	28 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 1, 2026

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 interpreting agencies. 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 interpreting agencies.
Partial evidence: Its own public description names part of deaf interpreting agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name deaf interpreting agencies. 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 529 deaf interpreting agencies based in the United States

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Deaf interpreting agencies based in the United States at a glance

As of Sep 1, 2026

14.6%Verified-email coverage

25.5%Mobile-number coverage

46.6Average contacts per company

1-10Median size (employees)

3.0%Largest-city concentration · Austin

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

297

11-50

140

51-200

201-500

501-1,000

1,001-5,000

10001+

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 interpreting agencies, 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 “deaf interpreting agencies”. 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 interpreting agencies), 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 interpreting agencies, 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, 3,611 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 1, 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 deaf interpreting agencies, 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 interpreting agencies are there based in the United States?

RevenueBase identified 529 deaf interpreting agencies 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 deaf interpreting agencies?

Austin leads with 16 headquartered companies, followed by New York (14) and Los Angeles (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 3,611 verified decision-maker contacts tracked across these 529 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 1, 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.