Company lists · Data verified August 2026

Top 25 Conference interpreting services based in the United States

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 390 companies tracked

There are 390 conference interpreting services headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 18,866 professional contacts across them, including 1,542 with verified work emails and 3,399 with mobile numbers. New York is the largest hub.

This list covers conference interpreting services headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

390Companies

18,866Contacts tracked

1,542Verified emails

3,399Mobile numbers

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The 25 largest conference interpreting services based in the United States

Ranked by team size

Top 25 of 390 conference interpreting services based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Languageline Solutions	Monterey, CA	10001+	6,355	646
2	Propio Language Services	Overland Park, KS	n/a	4,992	155
3	Certified Languages International	Portland, OR	201-500	606	75
4	Masterword	Houston, TX	51-200	476	58
5	Hanna Interpreting Services LLC	Spring Valley, CA	51-200	399	34
6	Fluent Language Solutions, INC	Charlotte, NC	n/a	298	24
7	The Language Group, LLC	Virginia Beach, VA	n/a	246	27
8	Passport To Languages INC	Portland, OR	51-200	101	12
9	Lingualinx	Albany, NY	11-50	81	30
10	Indemand Interpreting	Tukwila, WA	201-500	81	1
11	Language Connections	Boston, MA	11-50	80	12
12	Access 2 Interpreters	Columbus, OH	201-500	76	3
13	Rise Interpreting	Riverside, CA	11-50	54	7
14	American Language Services	Las Vegas, NV	11-50	51	26
15	World Services, INC	Atlanta, GA	n/a	46	1
16	Access Interpreting, INC	Vienna, VA	11-50	45	14
17	Simplified Group BPO LLC	Lewes, DE	11-50	41	3
18	Pals International	Troy, MI	51-200	39	2
19	Swits, LTD	Delavan, WI	51-200	39	1
20	CAL Interpreting & Translations	Los Angeles	11-50	38	13
21	House Of Languages	Portland, ME	51-200	38	5
22	Language Solutions Team	Bethel Park, PA	11-50	38	4
23	Keystone Interpreting Solutions	Saint Paul, MN	11-50	37	11
24	Partners Interpreting	Hartford, CT	201-500	36	14
25	Verbatim Languages	Orlando, FL	51-200	36	4

Showing 25 of 390 conference interpreting services based in the United States

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Conference interpreting services based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 16 HQs

3,399Contacts with mobile numbers

9Emails re-verified in last 30 days

Companies by employee count

1-10

215

11-50

113

51-200

201-500

501-1,000

10001+

Conference interpreting services by metro

Metro	Companies
Conference interpreting services in New York	16
Conference interpreting services in Portland	10
Conference interpreting services in Miami	8
Conference interpreting services in Atlanta	8
Conference interpreting services in Orlando	7
Conference interpreting services in Denver	6
Conference interpreting services in San Francisco	6
Conference interpreting services in Los Angeles	6

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “conference interpreting services”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 9 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many conference interpreting services are there based in the United States?

There are 390 conference interpreting services headquartered in the United States as of August 2026 (RevenueBase).

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 conference interpreting services?

New York leads with 16 headquartered companies, followed by Portland (10) and Miami (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 1,542 verified decision-maker contacts tracked across these 390 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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Related lists

Conference interpreting services by geography

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.