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Companies using RPG400 by IBM in 2025

As of 2025, 130 verified companies use RPG400 – across industries, company sizes, and geographies. This is real, verified data. Whether you’re looking to analyze the market, build a target list, or get a sales edge – this is your starting point.

https://www.ibm.com

What is RPG400 by IBM?

RPG400 by IBM is a high-level programming language for business applications, particularly known for its use on IBM i systems (formerly AS/400). It’s used for developing and maintaining business applications, database management and system programming. It’s often used in industries like finance, manufacturing, and retail, typically by IT departments, software developers, and system administrators.

Last updated date

August 17, 2025

Number of Companies using

130

The majority are based in the

United States

Most common industry?

Manufacturing

RPG400’s sample user list in 2025

Company Name

Country

Industry

Employees

Revenue

Product

IBM

United States flag
United States

Custom Software & IT Services

270300

$62.8B

RPG400

Accenture

Ireland flag
Ireland

Custom Software & IT Services

791000

$68.5B

RPG400

Cigna

United States flag
United States

Insurance

73500

$247.1B

RPG400

HCL Technologies

India flag
India

Custom Software & IT Services

227481

$13.3B

RPG400

Unilever

United Kingdom flag
United Kingdom

Holding Companies & Conglomerates

115964

$71.3B

RPG400

HSBC

United Kingdom flag
United Kingdom

Banking

211940

$68.1B

RPG400

Cardinal Health

United States flag
United States

Holding Companies & Conglomerates

48900

$222.3B

RPG400

Lear

United States flag
United States

Automotive Parts

173700

$22.9B

RPG400

MetLife

United States flag
United States

Insurance

45000

$69.9B

RPG400

CBRE

United States flag
United States

Real Estate

140000

$36.7B

RPG400

Showing 10 of 130 results

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We have data on 130 companies that use RPG400. Our RPG400 customers list is available for download and comes enriched with vital company specifics, including industry classification, organizational size, geographical location, funding rounds, and revenue figures, among others.

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RPG400 users and customers by country

United States flag
United States
United Kingdom flag
United Kingdom

2.6K Companies

Ireland flag
Ireland

2.6K Companies

Argentina flag
Argentina

2.6K Companies

Portugal flag
Portugal

2.6K Companies

Where RPG400 Shows Up Most

RPG400 is used across a wide range of sectors:

Manufacturing

Business Services

Retail

Custom Software & IT Services

Finance

From lean startups to global enterprises, RPG400’s footprint is wide, and that means opportunity.

sectors

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This data is updated on August 17, 2025

RPG400 is a high-level programming language by IBM, typically used on IBM i systems (formerly AS/400). It’s mainly used for business applications, database management, and system programming.

As of 2025, 130 verified companies are using RPG400.

RPG400 is frequently used in industries like Manufacturing, Business Services, Retail, Custom Software & IT Services, and Finance.

The United States has the highest number of companies using RPG400.

RPG400 is typically used by IT departments, software developers, and system administrators.