Largest BPOs in the World and in Japan (2026): Ranked by Revenue

By total revenue, the largest BPOs in the world are Accenture, Tata Consultancy Services (TCS) and NTT DATA. Each is a global IT services and business process outsourcing company. Accenture alone reported $74.2 billion in revenue for the fiscal year ended August 2026.

In Japan, the largest BPO companies are transcosmos, Altius Link and Bell System 24. Transcosmos posted ¥393.9 billion in revenue for the fiscal year ended March 2026. By one estimate, Japan's BPO market was worth $18.6 billion in 2023.

This guide ranks the top BPO companies by revenue. It then covers smaller, English-friendly options for startups and foreign-owned businesses in Japan. Still setting up? Start with our guide to company incorporation in Japan.

The largest BPO companies at a glance

The tables in this section rank each company by its latest reported revenue. Revenue for the global firms includes IT services and consulting, not only BPO.

Largest IT services and BPO companies by revenue

Figures as of November 2026. TELUS Digital has been private since October 31, 2025, so it is profiled below but not ranked.

Largest BPO companies in Japan by revenue

Figures as of November 2026.

NTT DATA, also based in Tokyo, is larger than all five. Most of its revenue comes from IT services, so it sits in the world list instead.

The largest BPOs in the world

The biggest BPO companies in the world sell far more than call centers. Most combine contact centers, IT services and AI-driven automation for a range of industries. We rank them by latest reported revenue.

1. Accenture

Accenture is a global professional services company based in Dublin, Ireland. It reported $74.2 billion in revenue for the fiscal year ended August 31, 2026. The company has more than 779,000 employees, as of August 2025.

Managed services, which includes business process services for its clients, brought in $37.3 billion of that total. Accenture had nearly 110,000 AI and data specialists at the end of fiscal 2026.

2. Tata Consultancy Services (TCS)

Tata Consultancy Services is an IT services and BPO company based in Mumbai, India. TCS reported $30.0 billion in revenue for the fiscal year ended March 31, 2026. It ended the year with 584,519 employees.

TCS is investing heavily in AI. Its annualized AI revenue passed $2.3 billion in early 2026. More than 270,000 employees reached higher proficiency in AI and machine learning.

3. NTT DATA

NTT DATA is a global IT services company based in Tokyo. It reported net sales of ¥4,638.7 billion for the fiscal year ended March 31, 2025, its last full year as a listed company. The company has about 197,800 employees.

NTT, Inc. took full ownership and delisted NTT DATA on September 26, 2025. Most of its revenue comes from IT services and data centers, but it also runs BPO services. It is one of the few Japanese companies on this list.

4. Cognizant

Cognizant is a professional services company based in Teaneck, New Jersey. It reported $21.1 billion in revenue for 2025, up 7.0%. It had 351,600 employees at the end of 2025.

Most of its revenue comes from IT services. It sells operations work under its Intuitive Operations and Automation (IOA) brand.

5. Infosys

Infosys is an IT services company based in Bengaluru, India. It reported revenue of ₹178,650 crore for the fiscal year ended March 31, 2026, up 9.6%. It had 328,594 employees at year end.

Infosys says AI is opening new revenue in data, process transformation and modernization. It signed $14.9 billion in large deals in fiscal 2026.

6. Teleperformance (TP)

Teleperformance, now branded TP, is a digital business services company based in Paris. It reported €10.21 billion in revenue in 2025. TP runs multilingual teams in close to 100 countries for many of the world's best-known brands.

The company has made AI central to its plan. It launched more than 500 AI projects in 2025, and Jorge Amar became CEO on March 16, 2026.

7. Concentrix

Concentrix is a customer experience and technology company based in Newark, California. It reported $9.83 billion in revenue for the fiscal year ended November 30, 2025. It has more than 440,000 employees in over 70 countries.

Its services include design engineering, front- and back-office automation, analytics and business transformation. Concentrix sells these solutions to clients in five main industry groups.

8. EXL Service

EXL Service is a data and AI company founded in 1999 and based in New York. It reported $2.09 billion in revenue for 2025, up 13.6% from 2024. EXL has more than 65,000 employees.

Its business process outsourcing (BPO) services include customer experience, collections, finance and accounting, and risk and compliance. Its clients span insurance, healthcare, banking, retail and energy.

TELUS Digital (formerly TELUS International)

TELUS Digital is the new name of TELUS International, a Canadian BPO and digital customer experience company. It rebranded on September 18, 2024. Its parent, TELUS Corporation, took it private on October 31, 2025.

The company began with a 2005 investment in a Philippines-based BPO. Today it offers outsourced customer support, digital product development and consulting.

The 5 largest BPO companies in Japan

Japan's largest BPO companies grew out of call centers. Today they run contact centers, back-office work and digital services for a range of industries. We rank them by latest reported revenue.

1. transcosmos

Transcosmos is the largest BPO company in Japan by revenue. It posted ¥393.9 billion for the fiscal year ended March 2026, up 4.8%. The company is listed on the Tokyo Stock Exchange Prime market.

Transcosmos runs 32 contact center bases in Japan and 48 overseas. It supports chat and speech recognition in 30 languages. Its range of services includes:

• Contact centers and customer care

• Back-office services, plus order and supply chain management

• Digital marketing, website operation and e-commerce support

That language reach makes it a strong fit for foreign brands selling in Japan.

2. Altius Link

Altius Link launched on September 1, 2023, when KDDI Evolva and Relia merged. KDDI and Mitsui & Co. back the company. At launch, the combined company had about ¥240 billion in sales (FY2022 basis) and roughly 58,000 employees.

Altius Link calls itself Japan's largest contact center operator by sales. It sells digital BPO, which pairs contact center staff with automation and AI. It also offers back-office and IT solutions for client companies.

3. Bell System 24

Bell System 24 is a leading contact center and CRM company listed on the Tokyo Stock Exchange. It reported ¥145.8 billion in revenue for the fiscal year ended February 2026, up 1.5%. ITOCHU Corporation holds 40.7% of its voting rights.

Its services include contact center operations, technology services and consulting. It also runs subsidiaries in Vietnam and Taiwan, plus an affiliated contact center in Thailand. Japanese clients expect a high standard of service, as our guide to Japanese customer care explains.

4. Prestige International

Prestige International is a BPO group founded in 1986 and listed on the Tokyo Stock Exchange Prime market. It reported a record ¥70.9 billion in net sales for the fiscal year ended March 2026.

Prestige specializes in assistance services for insurers, carmakers and property managers. Its BPO centers handle:

• Roadside assistance for car insurance policyholders

• Home and parking assistance for real estate managers

• Insurance claims and financial guarantee services

The company opened a BPO center in Misawa, Aomori, in April 2025. It is now preparing a new campus in Katagami, Akita.

5. TMJ

TMJ is a BPO and contact center company based in Shinjuku, Tokyo. It was founded on April 1, 1992, and is now part of the SECOM group, a security services company. TMJ reported ¥58.4 billion in group sales for fiscal 2022.

Its services include BPO, contact center operations, consulting and staffing. TMJ runs centers across Japan, from Sapporo to Kagoshima, plus Manila in the Philippines.

Mid-size and multilingual specialists

Tele-net Corporation

Tele-net is a Tokyo-based contact center company founded in 1994. It has about 400 employees and works in Japanese, English and Chinese. Tele-net also runs centers in the Philippines and the United States.

Its focus has been human-led customer service rather than automated phone menus. It accepts contracts from a single seat, which suits smaller businesses.

BPO options for startups and foreign-owned companies

Large BPO companies build programs for big enterprise clients. Startups and small firms often need a provider that works in English and starts small.

The services below handle back-office tasks for businesses in Japan on flexible terms. MailMate publishes this article and appears first, so weigh our listing with that in mind. For wider help, see our list of English-speaking startup support in Japan.

1. Mailmate (formerly TokyoMate)

MailMate is a Tokyo-based company that provides mail and back-office services to businesses in Japan. Clients get a Japanese business address and an online dashboard for their mail.

MailMate staff receive and scan each letter. You can then ask the team to open, forward, shred or translate it, or pay the bill inside. Its services include:

• Registered business address you can use for company incorporation, plus a virtual mailbox

• Bookkeeping and tax filing (see our bookkeeping guide)

• Expense and receipt capture

• Bill-pay and invoice management

• Japanese phone numbers with a bilingual receptionist

As a bilingual team, MailMate staff handle every request in English or Japanese.

2. Virtual Assist Japan

Virtual Assist Japan is an English-speaking virtual assistant service for businesses and professionals. Its assistants cover admin work, customer support and translation.

GoodFirms lists its rates at $25 to $49 per hour as of November 2026. New to the model? Read what a virtual assistant is and why you need one.

3. JMC

JMC is a management consulting firm that also runs business process outsourcing and support services. Its outsourcing work covers accounting, payroll, financial management and administration.

GoodFirms lists JMC at under $25 per hour as of November 2026. Its consulting side covers market entry strategy and process reengineering.

For payroll alone, compare options in our Japan payroll guide. For accounting, see our short list of bilingual accounting firms in Tokyo. Need marketing help instead of BPO? Start with our Japanese SEO guide.

How big is the BPO industry in Japan?

Japan's BPO services market recorded revenues of $18.6 billion in 2023. It grew at a compound annual growth rate of 4.6% between 2018 and 2023, according to Research and Markets. Estimates vary with the definition: Bell System 24 puts the wider domestic BPO market at more than ¥5 trillion.

Vertical-specific BPO, built for one industry, made up the largest share. Labor shortages and digital transformation (DX) keep the BPO market growing as more businesses in Japan outsource.

What is business process outsourcing (BPO)?

Business process outsourcing (BPO) is when a company hires an outside provider to run a business process. In Japanese, people call it BPO or アウトソーシング (autosōshingu). Contracted work is often called 業務委託 (gyōmu itaku).

Common BPO services include:

• Contact centers and customer service

• Back-office work such as data entry and data extraction

• Payroll, HR and accounting

• IT-enabled services (ITES services) such as help desks

Many of the companies above now use AI to automate routine work. Hiring staff is a different service: an employer of record employs workers on your behalf.

How to choose a BPO company in Japan

The right provider depends on your size, language needs and budget. Use these five checks to help you compare providers:

• Language support. Confirm the number of English-speaking staff on your account.

• Minimum size. Large firms suit big programs. Tele-net, for example, starts from one seat.

• Pricing model. Ask whether you pay per hour, per seat or per transaction.

• Security. Look for Privacy Mark (P-mark) or ISMS certification. Tele-net and TMJ both hold them.

• Contract timing. Many Japanese companies close their fiscal year on March 31, which shapes budgets.

Need contracts translated first? See our guide to Japanese document translation services.

Largest BPOs: Frequently asked question

What are the largest BPOs in the world?

The largest BPOs in the world by revenue are Accenture, Tata Consultancy Services and NTT DATA. Accenture reported $74.2 billion for the fiscal year ended August 2026. TCS reported $30.0 billion for the fiscal year ended March 2026. Their revenue includes IT services and consulting, not only BPO.

What is the largest BPO company in Japan?

Transcosmos is the largest BPO company in Japan by revenue, at ¥393.9 billion for the fiscal year ended March 2026. Altius Link calls itself Japan's largest contact center operator, with about ¥240 billion in combined sales (FY2022 basis) at its 2023 launch. Bell System 24 follows with ¥145.8 billion for the fiscal year ended February 2026.

What is business process outsourcing (BPO)?

Business process outsourcing is when a company hires an outside provider to run a business process. Common examples are contact centers, data entry, payroll and accounting. In Japanese it is called BPO or アウトソーシング (autosōshingu). Many BPO companies now use AI to automate routine tasks.

How big is the BPO industry in Japan?

Japan's BPO services market recorded revenues of $18.6 billion in 2023, according to Research and Markets. It grew at a compound annual rate of 4.6% between 2018 and 2023. Vertical-specific BPO, built for one industry, made up the largest share. Estimates vary with the definition: Bell System 24 puts the wider domestic BPO market at more than ¥5 trillion.

Which BPO companies in Japan offer English-language support?

Transcosmos supports 30 languages, with 32 contact center bases in Japan and 48 overseas. Tele-net works in Japanese, English and Chinese, with centers in Japan, the Philippines and the United States. Virtual Assist Japan offers English-speaking virtual assistants. Always ask how many English speakers will work on your account.

What are good BPO options for startups in Japan?

Startups often choose smaller providers that start small and work in English. Tele-net accepts contact center contracts from a single seat. GoodFirms lists Virtual Assist Japan at $25 to $49 per hour and JMC at under $25 per hour (November 2026). MailMate handles mail, bookkeeping, tax filing and bill-pay on a monthly plan.

What happened to TELUS International?

TELUS International rebranded as TELUS Digital on September 18, 2024. Its parent, TELUS Corporation, bought the remaining shares and took it private on October 31, 2025. The company still provides outsourced customer support and digital services.

In closing

The largest BPOs in the world, such as Accenture, TCS and NTT DATA, serve global enterprises. In Japan, transcosmos, Altius Link and Bell System 24 lead by revenue.

Smaller providers suit startups and foreign-owned businesses that need English support and flexible terms. Start with one process for your business, measure the results, then expand.

Setting up your company first? Our company incorporation guide walks you through each step.

In closing

Business process outsourcing companies in Japan offer a way for businesses to focus on their core activities by outsourcing non-essential but critical tasks to specialized firms.

Whether you choose one of the largest BPOs in Japan or a startup, leveraging their expertise and capabilities will help your business navigate the complex Japanese market for growth and sustainability.