How many companies buy Mainframes?

Based on our data, 21,089 companies buy Mainframes. This number is updated daily as we discover new companies through job posting analysis.

What types of companies buy Mainframes?

Mainframes is relevant across multiple industries including IT Services and IT Consulting, Financial Services, Banking. Companies range from startups to enterprises with 10,000+ employees.

How does TheirStack track companies related to Mainframes?

TheirStack analyzes millions of job postings daily from company career pages, job boards, and recruitment platforms. When a company mentions Mainframes in their job descriptions, requirements, or responsibilities, we identify them as related to Mainframes and add them to our database.

How can I get the full list of companies that buy Mainframes?

You can access the complete list of 21,089 companies on TheirStack. The data includes company name, industry, size, location, funding, and revenue. Available via our web app or API.

How often is the company data updated?

Our database is refreshed daily. We continuously monitor job postings to detect new companies buying Mainframes and update existing records.

Companies buying Mainframes

Large, high‑speed computers that support many workstations or peripheral devices.

21,089

companies

See all Get alerted

List of companies that buy Mainframes

This is sourced from job postings — companies only hire for what they actively use or plan to adopt · how we source this →

Export

Company	Country	Industry	Employees	Revenue	Technologies
Kyndryl	United States	IT Services and IT Consulting	90k	$19B	Mainframes
IBM	United States	IT Services and IT Consulting	345k	$61B	Mainframes
Infosys	India	IT Services and IT Consulting	374k	$17B	Mainframes
Tata Consultancy Services	India	IT Services and IT Consulting	731k	$27B	Mainframes
Ensono	United States	IT Services and IT Consulting	3.8k	$650M	Mainframes
JPMorganChase	United States	Financial Services	244k		Mainframes
CGI	Canada	IT Services and IT Consulting	89k	$9.5B	Mainframes
DXC Technology	United States	IT Services and IT Consulting	93k		Mainframes
Citi	United States	Financial Services	200k	$75B	Mainframes
NCR Atleos	United States	Banking	10k	$4.1B	Mainframes

Kyndryl
Employees90kRevenue$19BIT Services and IT Consulting
MainframesHigh confidence
IBM
Employees345kRevenue$61BIT Services and IT Consulting
MainframesHigh confidence
Infosys
Employees374kRevenue$17BIT Services and IT Consulting
MainframesHigh confidence
Tata Consultancy Services
Employees731kRevenue$27BIT Services and IT Consulting
MainframesHigh confidence
Ensono
Employees3.8kRevenue$650MIT Services and IT Consulting
MainframesHigh confidence
JPMorganChase
Employees244kFinancial Services
MainframesHigh confidence
CGI
Employees89kRevenue$9.5BIT Services and IT Consulting
MainframesHigh confidence
DXC Technology
Employees93kIT Services and IT Consulting
MainframesHigh confidence
Citi
Employees200kRevenue$75BFinancial Services
MainframesHigh confidence
NCR Atleos
Employees10kRevenue$4.1BBanking
MainframesHigh confidence

Showing 10 of 21,089 results

Page 1 of 2,109

Showing top companies out of 21,089 that buy Mainframes. Get the full list on TheirStack.

Related Hardware buying intents (93)
Workstations221,656
Hardware/Peripherals166,373
Relays161,755
Electronic Logging Device (ELD)37,735
Switchboards37,708
Electronic Component36,407
Load Balancer35,133
5K (Display)29,638
Graphics Processing Unit (GPU)29,222
Central Processing Unit (CPU)27,911
Processing Equipment25,567
Computer memory23,494
Inductor22,796
Plasma Display16,755
M115,471
Hard Drives14,788
Contactor13,125
Application-Specific Integrated Circuits (ASICs)12,706
Panelboards10,224
Single-Board Computer (SBC)9,861
Webcam9,404
Digital Versatile Disc (DVD)7,751
Tachograph7,520
Power Cable7,238
Wire Harnessing6,638
Desk Phone5,483
Resistors4,884
Cable Assemblies4,386
Motherboard3,851
Public Address System (PA system)3,833
Smart Cards3,532
Multi-Function Printing3,531
GPU Clusters3,209
Switched-Mode Power Supply (SMPS)3,021
Dual Monitors2,732
Multiplexers2,708
Limit Switch2,705
Industrial Computer2,377
LED Displays2,358
Pressure Sensors2,155
Set-Top Box (STB)2,151
Passive Components2,007
Interactive Whiteboards1,895
Smart Board1,806
Office Printers1,484
Pneumatic Tube1,388
Compute Module752
System-on-Module (SoM)752
Ultrasonic Sensors654
Flexible PCB652
Soundbars640
Radio Frequency Integrated Circuits (RFIC)628
Large-Format Display553
Position Sensors529
Plastic Optical Fiber (POF)486
Torque Sensors465
Conference Phones455
Classroom Audio419
Vibration Sensors403
AI Chips374
HMI Panels362
Touch Screen Monitor304
AI PC (Artificial Intelligence Personal Computer)301
Ereader294
Used Hardware281
Refurbished Device247
Power Connectors209
Motion Sensor209
AR Hardware197
Adapter Cards149
Interactive Projector146
Rugged Tablet134
Panel PC134
Optical Drives115
Rotary Encoders113
Data Diode113
Coprocessor110
Radio Frequency (RF) & Microwave PCBs90
Curved Monitor85
True Wireless Earbuds57
Encrypted USB56
Hybrid Computer48
Membrane Switch47
Touch Monitor27
Electronic Numerical Integrator and Calculator (ENIAC)23
Tricorder11
Enterprise Headset8
Phone Charging Station4
Mobile Projector4
Touch Overlay2
Eco-Friendly Printers2
Waterproof Computer0
Multimedia Monitor0

Frequently asked questions

Companies buying Mainframes

List of companies that buy Mainframes

What is Mainframes?

What is Mainframes?

How many companies buy Mainframes?

How many companies buy Mainframes?

What types of companies buy Mainframes?

What types of companies buy Mainframes?

How does TheirStack track companies related to Mainframes?

How does TheirStack track companies related to Mainframes?

How can I get the full list of companies that buy Mainframes?

How can I get the full list of companies that buy Mainframes?

How often is the company data updated?

How often is the company data updated?