Summary

The global market for Over-the-Phone Interpreting (OPI) Services was estimated to be worth US$ 285 million in 2024 and is forecast to a readjusted size of US$ 407 million by 2031 with a CAGR of 5.3% during the forecast period 2025-2031.
Over-the-Phone Interpreting (OPI) service mainly refers to the interpreter converting the source language of one speaker into the target language understood by the other listener accurately and quickly in real time through the telephone line, so as to overcome the language barrier and achieve effective communication between the two parties. In this process, the interpreter usually cannot see the speaker's facial expressions, body language and other non-verbal information, and can only rely on sound to understand and convey information, which has high requirements for their language ability, listening level, reaction speed and professional quality.

North American market for Over-the-Phone Interpreting (OPI) Services was valued at $ million in 2024 and will reach $ million by 2031, at a CAGR of % during the forecast period of 2025 through 2031.
Asia-Pacific market for Over-the-Phone Interpreting (OPI) Services was valued at $ million in 2024 and will reach $ million by 2031, at a CAGR of % during the forecast period of 2025 through 2031.
Europe market for Over-the-Phone Interpreting (OPI) Services was valued at $ million in 2024 and will reach $ million by 2031, at a CAGR of % during the forecast period of 2025 through 2031.
The global key companies of Over-the-Phone Interpreting (OPI) Services include Propio, LanguageLine Solutions, Boostlingo, Certified Languages International, TransPerfect, Day Interpreting, CyraCom, Languagers, Interpreters Unlimited, MasterWord, etc. In 2024, the global five largest players hold a share approximately % in terms of revenue.

This report aims to provide a comprehensive presentation of the global market for Over-the-Phone Interpreting (OPI) Services, focusing on the total sales revenue, key companies market share and ranking, together with an analysis of Over-the-Phone Interpreting (OPI) Services by region & country, by Type, and by Application.
The Over-the-Phone Interpreting (OPI) Services market size, estimations, and forecasts are provided in terms of sales revenue ($ millions), considering 2024 as the base year, with history and forecast data for the period from 2020 to 2031. With both quantitative and qualitative analysis, to help readers develop business/growth strategies, assess the market competitive situation, analyze their position in the current marketplace, and make informed business decisions regarding Over-the-Phone Interpreting (OPI) Services.

Market Segmentation
By Company
Propio
LanguageLine Solutions
Boostlingo
Certified Languages International
TransPerfect
Day Interpreting
CyraCom
Languagers
Interpreters Unlimited
MasterWord
Trusted Translations
BIG Language Solutions
Lionbridge
Segment by Type
One-way Interpretation
Two-way Interpretation
Segment by Application
Health Care
Legal
Utilities
Finance
Others
By Region
North America
United States
Canada
Asia-Pacific
China
Japan
South Korea
Southeast Asia
India
Australia
Rest of Asia-Pacific
Europe
Germany
France
U.K.
Italy
Netherlands
Nordic Countries
Rest of Europe
Latin America
Mexico
Brazil
Rest of Latin America
Middle East & Africa
Turkey
Saudi Arabia
UAE
Rest of MEA

Chapter Outline
Chapter 1: Introduces the report scope of the report, global total market size. This chapter also provides the market dynamics, latest developments of the market, the driving factors and restrictive factors of the market, the challenges and risks faced by manufacturers in the industry, and the analysis of relevant policies in the industry.
Chapter 2: Detailed analysis of Over-the-Phone Interpreting (OPI) Services company competitive landscape, revenue market share, latest development plan, merger, and acquisition information, etc.
Chapter 3: Provides the analysis of various market segments by Type, covering the market size and development potential of each market segment, to help readers find the blue ocean market in different market segments.
Chapter 4: Provides the analysis of various market segments by Application, covering the market size and development potential of each market segment, to help readers find the blue ocean market in different downstream markets.
Chapter 5: Revenue of Over-the-Phone Interpreting (OPI) Services in regional level. It provides a quantitative analysis of the market size and development potential of each region and introduces the market development, future development prospects, market space, and market size of each country in the world.
Chapter 6: Revenue of Over-the-Phone Interpreting (OPI) Services in country level. It provides sigmate data by Type, and by Application for each country/region.
Chapter 7: Provides profiles of key players, introducing the basic situation of the main companies in the market in detail, including product revenue, gross margin, product introduction, recent development, etc.
Chapter 8: Analysis of industrial chain, including the upstream and downstream of the industry.
Chapter 9: Conclusion.

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Table of Contents

1 Market Overview
1.1 Over-the-Phone Interpreting (OPI) Services Product Introduction
1.2 Global Over-the-Phone Interpreting (OPI) Services Market Size Forecast (2020-2031)
1.3 Over-the-Phone Interpreting (OPI) Services Market Trends & Drivers
1.3.1 Over-the-Phone Interpreting (OPI) Services Industry Trends
1.3.2 Over-the-Phone Interpreting (OPI) Services Market Drivers & Opportunity
1.3.3 Over-the-Phone Interpreting (OPI) Services Market Challenges
1.3.4 Over-the-Phone Interpreting (OPI) Services Market Restraints
1.4 Assumptions and Limitations
1.5 Study Objectives
1.6 Years Considered
2 Competitive Analysis by Company
2.1 Global Over-the-Phone Interpreting (OPI) Services Players Revenue Ranking (2024)
2.2 Global Over-the-Phone Interpreting (OPI) Services Revenue by Company (2020-2025)
2.3 Key Companies Over-the-Phone Interpreting (OPI) Services Manufacturing Base Distribution and Headquarters
2.4 Key Companies Over-the-Phone Interpreting (OPI) Services Product Offered
2.5 Key Companies Time to Begin Mass Production of Over-the-Phone Interpreting (OPI) Services
2.6 Over-the-Phone Interpreting (OPI) Services Market Competitive Analysis
2.6.1 Over-the-Phone Interpreting (OPI) Services Market Concentration Rate (2020-2025)
2.6.2 Global 5 and 10 Largest Companies by Over-the-Phone Interpreting (OPI) Services Revenue in 2024
2.6.3 Global Top Companies by Company Type (Tier 1, Tier 2, and Tier 3) & (based on the Revenue in Over-the-Phone Interpreting (OPI) Services as of 2024)
2.7 Mergers & Acquisitions, Expansion
3 Segmentation by Type
3.1 Introduction by Type
3.1.1 One-way Interpretation
3.1.2 Two-way Interpretation
3.2 Global Over-the-Phone Interpreting (OPI) Services Sales Value by Type
3.2.1 Global Over-the-Phone Interpreting (OPI) Services Sales Value by Type (2020 VS 2024 VS 2031)
3.2.2 Global Over-the-Phone Interpreting (OPI) Services Sales Value, by Type (2020-2031)
3.2.3 Global Over-the-Phone Interpreting (OPI) Services Sales Value, by Type (%) (2020-2031)
4 Segmentation by Application
4.1 Introduction by Application
4.1.1 Health Care
4.1.2 Legal
4.1.3 Utilities
4.1.4 Finance
4.1.5 Others
4.2 Global Over-the-Phone Interpreting (OPI) Services Sales Value by Application
4.2.1 Global Over-the-Phone Interpreting (OPI) Services Sales Value by Application (2020 VS 2024 VS 2031)
4.2.2 Global Over-the-Phone Interpreting (OPI) Services Sales Value, by Application (2020-2031)
4.2.3 Global Over-the-Phone Interpreting (OPI) Services Sales Value, by Application (%) (2020-2031)
5 Segmentation by Region
5.1 Global Over-the-Phone Interpreting (OPI) Services Sales Value by Region
5.1.1 Global Over-the-Phone Interpreting (OPI) Services Sales Value by Region: 2020 VS 2024 VS 2031
5.1.2 Global Over-the-Phone Interpreting (OPI) Services Sales Value by Region (2020-2025)
5.1.3 Global Over-the-Phone Interpreting (OPI) Services Sales Value by Region (2026-2031)
5.1.4 Global Over-the-Phone Interpreting (OPI) Services Sales Value by Region (%), (2020-2031)
5.2 North America
5.2.1 North America Over-the-Phone Interpreting (OPI) Services Sales Value, 2020-2031
5.2.2 North America Over-the-Phone Interpreting (OPI) Services Sales Value by Country (%), 2024 VS 2031
5.3 Europe
5.3.1 Europe Over-the-Phone Interpreting (OPI) Services Sales Value, 2020-2031
5.3.2 Europe Over-the-Phone Interpreting (OPI) Services Sales Value by Country (%), 2024 VS 2031
5.4 Asia Pacific
5.4.1 Asia Pacific Over-the-Phone Interpreting (OPI) Services Sales Value, 2020-2031
5.4.2 Asia Pacific Over-the-Phone Interpreting (OPI) Services Sales Value by Region (%), 2024 VS 2031
5.5 South America
5.5.1 South America Over-the-Phone Interpreting (OPI) Services Sales Value, 2020-2031
5.5.2 South America Over-the-Phone Interpreting (OPI) Services Sales Value by Country (%), 2024 VS 2031
5.6 Middle East & Africa
5.6.1 Middle East & Africa Over-the-Phone Interpreting (OPI) Services Sales Value, 2020-2031
5.6.2 Middle East & Africa Over-the-Phone Interpreting (OPI) Services Sales Value by Country (%), 2024 VS 2031
6 Segmentation by Key Countries/Regions
6.1 Key Countries/Regions Over-the-Phone Interpreting (OPI) Services Sales Value Growth Trends, 2020 VS 2024 VS 2031
6.2 Key Countries/Regions Over-the-Phone Interpreting (OPI) Services Sales Value, 2020-2031
6.3 United States
6.3.1 United States Over-the-Phone Interpreting (OPI) Services Sales Value, 2020-2031
6.3.2 United States Over-the-Phone Interpreting (OPI) Services Sales Value by Type (%), 2024 VS 2031
6.3.3 United States Over-the-Phone Interpreting (OPI) Services Sales Value by Application, 2024 VS 2031
6.4 Europe
6.4.1 Europe Over-the-Phone Interpreting (OPI) Services Sales Value, 2020-2031
6.4.2 Europe Over-the-Phone Interpreting (OPI) Services Sales Value by Type (%), 2024 VS 2031
6.4.3 Europe Over-the-Phone Interpreting (OPI) Services Sales Value by Application, 2024 VS 2031
6.5 China
6.5.1 China Over-the-Phone Interpreting (OPI) Services Sales Value, 2020-2031
6.5.2 China Over-the-Phone Interpreting (OPI) Services Sales Value by Type (%), 2024 VS 2031
6.5.3 China Over-the-Phone Interpreting (OPI) Services Sales Value by Application, 2024 VS 2031
6.6 Japan
6.6.1 Japan Over-the-Phone Interpreting (OPI) Services Sales Value, 2020-2031
6.6.2 Japan Over-the-Phone Interpreting (OPI) Services Sales Value by Type (%), 2024 VS 2031
6.6.3 Japan Over-the-Phone Interpreting (OPI) Services Sales Value by Application, 2024 VS 2031
6.7 South Korea
6.7.1 South Korea Over-the-Phone Interpreting (OPI) Services Sales Value, 2020-2031
6.7.2 South Korea Over-the-Phone Interpreting (OPI) Services Sales Value by Type (%), 2024 VS 2031
6.7.3 South Korea Over-the-Phone Interpreting (OPI) Services Sales Value by Application, 2024 VS 2031
6.8 Southeast Asia
6.8.1 Southeast Asia Over-the-Phone Interpreting (OPI) Services Sales Value, 2020-2031
6.8.2 Southeast Asia Over-the-Phone Interpreting (OPI) Services Sales Value by Type (%), 2024 VS 2031
6.8.3 Southeast Asia Over-the-Phone Interpreting (OPI) Services Sales Value by Application, 2024 VS 2031
6.9 India
6.9.1 India Over-the-Phone Interpreting (OPI) Services Sales Value, 2020-2031
6.9.2 India Over-the-Phone Interpreting (OPI) Services Sales Value by Type (%), 2024 VS 2031
6.9.3 India Over-the-Phone Interpreting (OPI) Services Sales Value by Application, 2024 VS 2031
7 Company Profiles
7.1 Propio
7.1.1 Propio Profile
7.1.2 Propio Main Business
7.1.3 Propio Over-the-Phone Interpreting (OPI) Services Products, Services and Solutions
7.1.4 Propio Over-the-Phone Interpreting (OPI) Services Revenue (US$ Million) & (2020-2025)
7.1.5 Propio Recent Developments
7.2 LanguageLine Solutions
7.2.1 LanguageLine Solutions Profile
7.2.2 LanguageLine Solutions Main Business
7.2.3 LanguageLine Solutions Over-the-Phone Interpreting (OPI) Services Products, Services and Solutions
7.2.4 LanguageLine Solutions Over-the-Phone Interpreting (OPI) Services Revenue (US$ Million) & (2020-2025)
7.2.5 LanguageLine Solutions Recent Developments
7.3 Boostlingo
7.3.1 Boostlingo Profile
7.3.2 Boostlingo Main Business
7.3.3 Boostlingo Over-the-Phone Interpreting (OPI) Services Products, Services and Solutions
7.3.4 Boostlingo Over-the-Phone Interpreting (OPI) Services Revenue (US$ Million) & (2020-2025)
7.3.5 Boostlingo Recent Developments
7.4 Certified Languages International
7.4.1 Certified Languages International Profile
7.4.2 Certified Languages International Main Business
7.4.3 Certified Languages International Over-the-Phone Interpreting (OPI) Services Products, Services and Solutions
7.4.4 Certified Languages International Over-the-Phone Interpreting (OPI) Services Revenue (US$ Million) & (2020-2025)
7.4.5 Certified Languages International Recent Developments
7.5 TransPerfect
7.5.1 TransPerfect Profile
7.5.2 TransPerfect Main Business
7.5.3 TransPerfect Over-the-Phone Interpreting (OPI) Services Products, Services and Solutions
7.5.4 TransPerfect Over-the-Phone Interpreting (OPI) Services Revenue (US$ Million) & (2020-2025)
7.5.5 TransPerfect Recent Developments
7.6 Day Interpreting
7.6.1 Day Interpreting Profile
7.6.2 Day Interpreting Main Business
7.6.3 Day Interpreting Over-the-Phone Interpreting (OPI) Services Products, Services and Solutions
7.6.4 Day Interpreting Over-the-Phone Interpreting (OPI) Services Revenue (US$ Million) & (2020-2025)
7.6.5 Day Interpreting Recent Developments
7.7 CyraCom
7.7.1 CyraCom Profile
7.7.2 CyraCom Main Business
7.7.3 CyraCom Over-the-Phone Interpreting (OPI) Services Products, Services and Solutions
7.7.4 CyraCom Over-the-Phone Interpreting (OPI) Services Revenue (US$ Million) & (2020-2025)
7.7.5 CyraCom Recent Developments
7.8 Languagers
7.8.1 Languagers Profile
7.8.2 Languagers Main Business
7.8.3 Languagers Over-the-Phone Interpreting (OPI) Services Products, Services and Solutions
7.8.4 Languagers Over-the-Phone Interpreting (OPI) Services Revenue (US$ Million) & (2020-2025)
7.8.5 Languagers Recent Developments
7.9 Interpreters Unlimited
7.9.1 Interpreters Unlimited Profile
7.9.2 Interpreters Unlimited Main Business
7.9.3 Interpreters Unlimited Over-the-Phone Interpreting (OPI) Services Products, Services and Solutions
7.9.4 Interpreters Unlimited Over-the-Phone Interpreting (OPI) Services Revenue (US$ Million) & (2020-2025)
7.9.5 Interpreters Unlimited Recent Developments
7.10 MasterWord
7.10.1 MasterWord Profile
7.10.2 MasterWord Main Business
7.10.3 MasterWord Over-the-Phone Interpreting (OPI) Services Products, Services and Solutions
7.10.4 MasterWord Over-the-Phone Interpreting (OPI) Services Revenue (US$ Million) & (2020-2025)
7.10.5 MasterWord Recent Developments
7.11 Trusted Translations
7.11.1 Trusted Translations Profile
7.11.2 Trusted Translations Main Business
7.11.3 Trusted Translations Over-the-Phone Interpreting (OPI) Services Products, Services and Solutions
7.11.4 Trusted Translations Over-the-Phone Interpreting (OPI) Services Revenue (US$ Million) & (2020-2025)
7.11.5 Trusted Translations Recent Developments
7.12 BIG Language Solutions
7.12.1 BIG Language Solutions Profile
7.12.2 BIG Language Solutions Main Business
7.12.3 BIG Language Solutions Over-the-Phone Interpreting (OPI) Services Products, Services and Solutions
7.12.4 BIG Language Solutions Over-the-Phone Interpreting (OPI) Services Revenue (US$ Million) & (2020-2025)
7.12.5 BIG Language Solutions Recent Developments
7.13 Lionbridge
7.13.1 Lionbridge Profile
7.13.2 Lionbridge Main Business
7.13.3 Lionbridge Over-the-Phone Interpreting (OPI) Services Products, Services and Solutions
7.13.4 Lionbridge Over-the-Phone Interpreting (OPI) Services Revenue (US$ Million) & (2020-2025)
7.13.5 Lionbridge Recent Developments
8 Industry Chain Analysis
8.1 Over-the-Phone Interpreting (OPI) Services Industrial Chain
8.2 Over-the-Phone Interpreting (OPI) Services Upstream Analysis
8.2.1 Key Raw Materials
8.2.2 Raw Materials Key Suppliers
8.2.3 Manufacturing Cost Structure
8.3 Midstream Analysis
8.4 Downstream Analysis (Customers Analysis)
8.5 Sales Model and Sales Channels
8.5.1 Over-the-Phone Interpreting (OPI) Services Sales Model
8.5.2 Sales Channel
8.5.3 Over-the-Phone Interpreting (OPI) Services Distributors
9 Research Findings and Conclusion
10 Appendix
10.1 Research Methodology
10.1.1 Methodology/Research Approach
10.1.1.1 Research Programs/Design
10.1.1.2 Market Size Estimation
10.1.1.3 Market Breakdown and Data Triangulation
10.1.2 Data Source
10.1.2.1 Secondary Sources
10.1.2.2 Primary Sources
10.2 Author Details
10.3 Disclaimer