Top Software and IT Companies in USA List by Market Cap as of August 2026

Servicenow is Cloud Computing and AI products and services company with headquarters is in California, USA.

FORTINET is Software company with headquarters is in California, USA. Software company related to cybersecurity solutions, antivirus solutions, firewalls solutions. The Fortinet Security Fabric platform delivers broad, integrated, and automated protections across the entire digital attack surface, securing critical devices, data, applications, and connections from the data center to the cloud to the home office.

Activision Blizard company business related to Video Games and Entertainment company. Headquarters is in California, USA. Activision Blizard Inc portfolio includes some of the strongest franchises in all of entertainment, developed by the incredibly talented teams at Activision Publishing, Blizzard Entertainment, King Digital Entertainment, Activision Blizzard Studios, Major League Gaming, and their independent studios, including Toys for Bob, Infinity Ward, Sledgehammer Games and Treyarch.

Automatic Data Processing Inc (ADP) is USA based HR, Payroll and Tax Services related software solutions.

ADP has more than 700,000 clients and this company providing services in 113 countries.

As of June 30, 2022, their global team of associates consisted of approximately 60,000 persons.

ADP is global provider of cloud-based Human Capital Management (HCM) solutions that unite HR, payroll, talent, time, tax and benefits administration, and a leader in business outsourcing services, analytics and compliance expertise. Headquarters is in USA.

Adobe is Technology and Software Solutions Provider. PDF Files software and Photoshop software are from Adobe Systems. Adobe works on Cloud Platform. Photoshop is made part of Cloud now.

VMWARE is Software and Technology Company offering Cloud Computing Solutions, Virtualization Solutions, Desktop Solutions, Software Infrastructure Solutions, Storage Solutions related Products. Headquarters is in California, USA.

Broadcom acquired VMware for 69 billion USD in 2023.

Intuit is USA based Software Company that develops business, financial, taxation and accounting softwares. Quickbooks, Turbotax, Proconnect, Mint are their popular softwares related to Accounting and Taxation. Headquarters is in USA.

Datadog is a software solutions company. The company monitoring service for cloud-scale applications, providing monitoring of servers, databases, tools and services, through a SaaS-based data analytics platform. The headquarters is in USA. Datadog is the essential monitoring and security platform for cloud applications. They bring together end-to-end traces, metrics, and logs to make your applications and infrastructure.

Revenue was $1.03 billion, an increase of 70% year-over-year.

As on 2022, Datadog has 4,800 employees.

Cadence is USA based company and provides the expertise and tools, IP, and hardware required for the entire electronics design chain, from chip design to chip packaging to boards and to systems. Headquarters is in USA.

They enable electronic systems and semiconductor companies to create innovative products that transform the way people live, work, and play. Their products are used in mobile, consumer, cloud datacenter, automotive, aerospace, IoT, industrial and other market segments.

NORTHROP GRUMMAN CORPORATION is Aerospace and Defense based Technology company with headquarters is in Virginia, USA. Northrop Grumman is a global security company providing innovative systems, products and solutions in autonomous systems, cyber, C4ISR, space, strike, and logistics and modernization to customers worldwide.