These managed service providers in the United States primarily consist of large technology corporations specializing in software development and IT services. Companies like Amazon, Google, and Microsoft are prominent in software, while IBM, Oracle, and Amazon Web Services (AWS) focus on IT consulting and cloud infrastructure. Other significant players include DXC Technology, which modernizes IT systems, and Kyndryl, a global leader in managing advanced technology infrastructure.NVIDIA stands out in computer hardware manufacturing, particularly for GPUs and AI development. A notable pattern is the concentration of headquarters in tech hubs such as Seattle, Mountain View, and Redmond, indicating a strong presence of established technology giants across the country.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Amazonamazon.com
An e-commerce giant offering a vast selection of products, convenient shopping experiences, and fast delivery, connecting buyers with a wide range of sellers |
1,541,000 | |||
| 2 | 335,625 | ||||
| 3 |
Googlegoogle.com
Provides a powerful search engine, web services, and advertising tools to help users find information and businesses reach customers |
304,428 | |||
| 4 |
Microsoftmicrosoft.com
Develops and sells software, hardware, and cloud services, including the Windows operating system and Office suite, to improve productivity and digital experiences |
233,562 | |||
| 5 |
Oracleoracle.com
Delivers cloud infrastructure, data, and applications for AI, offering scalable solutions for various deployments, integrating AI into databases, data platforms, and business applications. |
206,235 | |||
| 6 |
Amazon Web Services (AWS)amazon.com
A global cloud computing provider offering scalable, reliable, and cost-effective infrastructure services to businesses worldwide, eliminating the need for capital infrastructure expenses |
147,090 | |||
| 7 |
DXC Technologydxc.com
It assists global companies in managing critical systems, modernizing IT, optimizing data, and ensuring security across various cloud environments. |
90,597 | |||
| 8 |
Hewlett Packard Enterprisehpe.com
This company is a global edge-to-cloud company that drives technology and innovation to fulfill its passion and purpose |
90,021 | |||
| 9 |
Kyndrylkyndryl.com
A global leader in designing, running, and managing advanced technology infrastructure, focusing on excellence, innovation, and advancing vital systems for human progress |
90,000 | |||
| 10 |
Lumen Technologieslumen.com
The company provides digital connectivity solutions, utilizing their network strength to connect people, data, and applications quickly, securely, and effortlessly |
49,357 | |||
| 11 |
NVIDIAnvidia.com
A pioneering company in accelerated computing, known for inventing the GPU, shaping PC gaming, computer graphics, AI development, and creating the metaverse |
48,336 | |||
| 12 |
NTT DATA North Americaus.nttdata.com
provides business and technology consulting, data and AI solutions, application development, infrastructure management, and industry-specific services globally |
24,414 | |||
| 13 |
Iron Mountainironmountain.com
Global leader in storage and information management services, partnering with organizations worldwide to protect and unlock the value of their assets and data |
24,357 | |||
| 14 |
Unisysunisys.com
A global technology solutions company offering digital workplace, cloud, applications & infrastructure, enterprise computing, and business process solutions to empower organizations |
23,358 | |||
| 15 |
Red Hatredhat.com
A global leader in enterprise open source solutions, delivering high-performing Linux, hybrid cloud, edge, and Kubernetes technologies through community collaboration Join us and make an impact |
21,000 | |||
| 16 |
Wipro Technologieswipro.com
Management consulting company located in New Orleans, providing services to help businesses improve operations and achieve their goals |
16,942 | |||
| 17 |
Databricksdatabricks.com
It provides a Data Intelligence Platform for organizations to manage their data effectively and leverage AI for better decision-making. |
15,896 | |||
| 18 |
Infinite Computer Solutionsinfinite.com
Global provider of technology modernization, digital engineering, and AI-driven IT services delivering tailored solutions across multiple industries worldwide. |
14,901 | |||
| 19 |
Equinixequinix.com
A global digital infrastructure company empowering businesses to access foundational infrastructure, partners, and possibilities to accelerate advantage and multiply value |
14,710 | |||
| 20 |
Apex Systemsapexsystems.com
Specializes in strategy, transformation, managed services including application development, data, cloud, cybersecurity, and AI solutions across global markets. |
13,945 | |||
| 21 |
NetAppnetapp.com
It builds intelligent data infrastructure, enabling applications to utilize any data from anywhere, enhancing data management and accessibility. |
12,680 | |||
| 22 |
Snowflakesnowflake.com
The company provides a Data Cloud platform for organizations to unite and mobilize data with scalability, security, and seamless multicloud experience |
11,689 | |||
| 23 |
VMwarebroadcom.com
Leading provider of multi-cloud services enabling digital innovation with enterprise control Cultivating innovation to solve customer challenges with disruptive technologies |
11,230 | |||
| 24 |
Akamai Technologiesakamai.com
A global leader in internet infrastructure, Akamai powers and protects online experiences for billions of users daily through innovative solutions |
10,647 | |||
| 25 |
Hitachi Vantarahitachivantara.com
Provides data management and analytics solutions enabling businesses to innovate and leverage data as a strategic asset for growth. |
10,529 | |||
| 26 |
Nutanixnutanix.com
Global leader in cloud software, providing a platform for running apps and data across clouds, simplifying operations for businesses worldwide |
9,917 | |||
| 27 |
GoDaddygodaddy.com
This company empowers individuals to effortlessly create, expand, and manage their online presence by providing affordable and easy-to-use services |
9,023 | |||
| 28 |
Railwayrailway.com
Building a developer platform as a service. It applies human-friendly design to internet infrastructure, helping great ideas materialize without friction. |
8,770 | |||
| 29 |
YASH Technologiesyash.com
Consulting-led digital transformation partner offering technology, advisory, and outsourcing services to optimize client performance and revenue growth globally. |
8,670 | |||
| 30 |
Uniti Group Inc.uniti.com
A real estate investment trust focused on acquiring and constructing critical communications infrastructure, including fiber, towers, and leasing assets for wireless and telecom industries |
8,488 | |||
| 31 |
Windstreamuniti.com
Announcement of merger between Windstream and Uniti, directing followers to Uniti Group, Inc. for future updates and information. |
8,376 | |||
| 32 |
MongoDBmongodb.com
A developer data platform empowering innovation through software and data solutions for modern applications, with a global customer base Visit mongodbcom |
8,013 | |||
| 33 |
Cloudflarecloudflare.com
The company is a leading connectivity cloud provider, empowering organizations to enhance speed and security while reducing complexity and cost |
7,489 | |||
| 34 |
Veeam Softwareveeam.com
Provides data backup, recovery, security, and intelligence solutions ensuring business continuity and data availability across hybrid cloud environments worldwide. |
7,308 | |||
| 35 |
Rackspace Technologyrackspace.com
Specializing in multicloud solutions, we assist global companies in overcoming challenges by providing custom cloud services for improved performance |
7,046 | |||
| 36 |
Twiliotwilio.com
Platform enabling companies to build personalized customer relationships using communications and data across sales, marketing, service, and growth worldwide. |
6,921 | |||
| 37 |
DFX Cloud Solutionsdfxcloudsolutions.com
A startup offering web services, AI, software, and cloud solutions since 2007 Specializes in software development, digital marketing, SEO, and hosting with a focus on client satisfaction |
6,832 | |||
| 38 |
Liberty Latin Americalla.com
A leading telecommunications company in Latin America and the Caribbean offering triple-play and quad-play services, enterprise connectivity, fiber optic network, and IT solutions |
6,564 | |||
| 39 | 6,192 | ||||
| 40 |
Spectrum Enterprisespectrum.com
A national provider of scalable, fiber-based technology solutions for businesses and communications service providers, offering Internet, Ethernet, Voice, TV, and Managed IT solutions |
5,583 | |||
| 41 |
Black Boxblackbox.com
Provides network integration, managed services, technology products, and cybersecurity solutions to global enterprises across multiple industries and regions. |
5,521 | |||
| 42 |
Digital Realtydigitalrealty.com
Global provider of data center, colocation, and interconnection solutions, enabling secure connectivity between companies through a network of 300+ facilities worldwide |
5,263 | |||
| 43 |
Pure Storageeverpuredata.com
Provides secure, real-time data storage solutions for SaaS, cloud providers, enterprises, enabling AI, machine learning, and multi-cloud environments. |
5,239 | |||
| 44 |
Impetusimpetus.com
Specializing in data, AI, and cloud solutions, the company offers data platform engineering, DevOps, AI/ML, and application modernization services for Fortune 500 enterprises |
4,735 | |||
| 45 |
Astronomerastronomer.io
Unified data orchestration platform powered by Apache Airflow helping enterprises build reliable data products, unlock insights, and power diverse data-driven applications. |
4,578 | |||
| 46 |
Zayo Groupzayo.com
provides extensive fiber network connectivity and tailored edge solutions powering carriers, cloud providers, data centers, educational institutions, and enterprises |
4,478 | |||
| 47 |
Presidiopresidio.com
A technology and innovation-driven company with expertise in automation, security, networking, digital transformation, and cloud computing, providing custom applications and managed services globally |
4,355 | |||
| 48 | 4,223 | ||||
| 49 |
Extreme Networksextremenetworks.com
Leader in AI-powered cloud networking, delivering a unified platform simplifying and securing IT operations, connecting devices, applications, and users for thousands of customers. |
4,064 | |||
| 50 |
Newfold Digitalnewfold.com
A leading web technology company serving millions globally, offering a portfolio of web services to help customers build and manage their online presence effectively |
3,965 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 51 | 3,917 | ||||
| 52 |
TE data
A leading internet service provider in Egypt and Jordan, offering a wide range of communication services, data center hosting, and global partnerships |
3,824 | |||
| 53 |
Electronic Data Systemsdxc.com
A global company founded in 1962 offering electronic data processing management personnel and computer hardware, focusing on large corporations and government contracts |
3,809 | |||
| 54 |
Ensonoensono.com
Ensono is a technology adviser and managed service provider, specializing in digital transformation, cloud migration, and application modernization for businesses worldwide |
3,646 | |||
| 55 |
Visionet Systems Inc.visionet.com
It provides digital technology solutions focusing on innovation for various industries, leveraging strategic partnerships and a large team of engineers. |
3,585 | |||
| 56 |
MOURI Techmouritech.com
Global Enterprise Solutions Provider partnering with Fortune 500 companies, offering innovative services in enterprise transformation, cloud strategy, analytics, and application development |
3,521 | |||
| 57 |
Beyondsoftbeyondsoft.com
A leading business IT and consulting company leveraging emerging technologies to deliver tailored solutions globally with a talented team |
3,483 | |||
| 58 |
Pomeroypomeroy.com
This company provides tailored IT support to ensure continuous business operations, proactive issue prevention, and quick resolution for uninterrupted productivity |
3,401 | |||
| 59 |
Hugheshughes.com
Provides broadband equipment, services, and network operations to millions of consumers, businesses, and governments worldwide via satellite and multi-transport technologies. |
3,209 | |||
| 60 |
Zones, LLCzones.com
Global IT solution provider with expertise in digital workplace, cloud services, networking, security, and staffing solutions Operating in 120+ countries with top certifications |
3,134 | |||
| 61 |
GURUguruconsult.com
An established IT managed service provider offering infrastructure support, data architecture, cloud services, and hybrid solutions with a strong focus on quality, integrity, and customer service |
3,038 | |||
| 62 |
Milestone Technologies, Inc.milestone.tech
A global IT services and digital solutions company in Silicon Valley, specializing in application services, digital product engineering, and workplace services |
3,008 | |||
| 63 |
Cogent Communicationscogentco.com
Provides high-quality Internet, Ethernet, and Colocation services to enterprises worldwide through a vast all-optical IP network. |
2,890 | |||
| 64 |
ETECSA_Cubaetecsa.cu
A telecommunications company in Cuba offering services to improve quality of life, support the country's development, and prioritize social responsibility |
2,837 | |||
| 65 |
Vonagevonage.com
It offers unified communications, contact centers, and programmable APIs on a flexible cloud platform, helping enterprises enhance their communication strategies. |
2,769 | |||
| 66 |
Integraallstream.com
A leader in business communications offering voice, collaboration, connectivity, and managed IT services to help customers innovate and reach business goals |
2,709 | |||
| 67 |
Loginloginbusiness.com
Arizona-based provider of business phone service, internet access, and secure data storage solutions Fully licensed and accredited by AZ ROC |
2,708 | |||
| 68 |
NYS Office of Information Technology Servicesits.ny.gov
Transforming government services in New York State, focusing on innovation, efficiency, and competitiveness through technology and a culture of creativity |
2,611 | |||
| 69 |
QTS Data Centersquantumfiber.com
Provider of data center solutions with over 9 million sq ft of space in North America Offers secure infrastructure, connectivity, and premium customer service |
2,591 | |||
| 70 |
Park Place Technologiesparkplacetechnologies.com
Global leader in data center and networking optimization, serving 21,000+ companies worldwide, improving infrastructure performance, maximizing IT staff efficiency, and optimizing budgets |
2,578 | |||
| 71 | 2,573 | ||||
| 72 |
IT Companyitcompany.net
A leading IT Company providing customer-centric IT services and solutions, including web hosting, web design, internet marketing, and IT services |
2,567 | |||
| 73 | 2,532 | ||||
| 74 |
Hewlett Packardhpe.com
An American multinational IT company offering hardware components, software, and services to consumers, SMBs, large enterprises, government, health, and education sectors Founded in 1939 |
2,526 | |||
| 75 |
Astreyaastreya.com
Innovative IT solutions provider with global reach, enabling businesses to make better decisions, improve efficiency, and gain a competitive edge |
2,520 | |||
| 76 |
Galaxygalaxy.com
Technology-driven financial services firm providing full suite of solutions in digital assets ecosystem through trading, asset management, investments, banking, and mining Headquarters in New York City |
2,510 | |||
| 77 |
Vantage Data Centersvantage-dc.com
Designs and operates scalable, efficient, and sustainable data centers worldwide, serving hyperscalers, cloud providers, and large enterprises. |
2,484 | |||
| 78 |
DigitalOceandigitalocean.com
DigitalOcean simplifies cloud computing for businesses, providing mission-critical infrastructure and fully managed offerings to help developers rapidly build, deploy, and scale innovative applications |
2,444 | |||
| 79 |
NinjaOneninjaone.com
Provides automated management, patching, and visibility for endpoints, ensuring security and efficiency for organizations of all sizes worldwide. |
2,376 | |||
| 80 |
CoreWeavecoreweave.com
Specialized cloud provider offering high-performance GPU compute resources for VFX, rendering, AI, and batch processing at faster speeds and lower costs than large public clouds |
2,372 | |||
| 81 |
Trianztrianz.com
Delivers cloud adoption and AI transformation through a unified platform for migration, modernization, multi-cloud management, FinOps, and autonomous federated AI data intelligence. |
2,369 | |||
| 82 |
Web.comnetworksolutions.com
Customer support services transitioned to Network Solutions, directing users to visit networksolutions.com for assistance and inquiries. |
2,247 | |||
| 83 |
LNT Infotechlntinfotech.com
A global IT solutions & services company, part of Larsen & Toubro, helping clients succeed in digital transformation through technology consulting and digital solutions |
2,230 | |||
| 84 | 2,141 | ||||
| 85 |
Transaction Network Services (TNS)tnsi.com
A global provider of Infrastructure-as-a-Service solutions for financial, communications, and payments markets, supporting secure, flexible, and efficient interactions worldwide |
2,076 | |||
| 86 |
New Era Technologyneweratech.com
Global managed technology service provider offering collaboration, networking, security, cloud, and professional services across diverse industries worldwide. |
2,072 | |||
| 87 |
ePlus inc.eplus.com
Leading provider of comprehensive IT solutions, including security, cloud services, data migration, data center management, collaboration, and networking expertise, driven by innovation and customer-centric focus |
2,071 | |||
| 88 |
Thrivethrivenextgen.com
Empowering small and mid-market organizations to transform their technology into a strategic advantage, offering AI, cybersecurity, cloud, and MSP/MSSP solutions for innovation and growth. |
2,059 | |||
| 89 | 2,001 | ||||
| 90 |
Cirion Technologiescirion.it
Digital infrastructure and technology provider in Latin America, offering fiber network, connectivity, colocation, cloud infrastructure, and communication solutions for businesses and government agencies |
1,998 | |||
| 91 |
TTEC Digitalttecdigital.com
A global leader in customer experience orchestration, leveraging technology and empathy with expertise in CX strategy, data analytics, and AI |
1,983 | |||
| 92 |
SMXsmxtech.com
A US based IT and engineering solutions provider specializing in Cloud Solutions, Cyber Security, Systems Integration, Data Analytics, and Mission-Focused Engineering |
1,934 | |||
| 93 |
Onixonixnet.com
Cloud consulting company offering innovative solutions in data analytics, modernization, security, and AI/ML, with 20+ years of strategic cloud partnerships and expert global team |
1,932 | |||
| 94 |
NICnicitpartner.com
A leading provider of IT solutions, cybersecurity, and cloud services for businesses and organizations, with a focus on customer service and adapting to client needs |
1,923 | |||
| 95 | 1,916 | ||||
| 96 |
ACCacc-corp.net
Provider of advanced technology solutions since 1991, specializing in Data Center, IT, and Business services for clients locally and globally |
1,914 | |||
| 97 |
ZT Systemsztsystems.com
The company provides cloud-enabling server solutions for leading companies, bridging the gap between problem and solution for complex server design needs |
1,885 | |||
| 98 |
Grafana Labsgrafana.com
Flexible managed observability platform for monitoring disparate data, resolving incidents quickly, and optimizing telemetry across systems for millions of global open source users. |
1,861 | |||
| 99 |
iLink Digitalilink-digital.com
Helps enterprises move from AI ambition to AI reality with data foundations, security posture, cloud infrastructure, and intelligent applications. |
1,789 | |||
| 100 | 1,775 | ||||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.
More company lists in the United States
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- Manufacturers in the United States 8,678
- Professional services firms in the United States 7,078
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- Financial services firms in the United States 6,864
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- Financial Services companies in the United States 5,012
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The same list elsewhere in United States
- Managed service providers in California 152
- Managed service providers in Texas 83
- Managed service providers in New York State 78
- Managed service providers in Florida 71
- Managed service providers in Georgia 42
- Managed service providers in New Jersey 36
- Managed service providers in Illinois 35
- Managed service providers in Virginia 35
- Managed service providers in Washington State 35
- Managed service providers in Colorado 31
- Managed service providers in Massachusetts 26
- Managed service providers in Pennsylvania 26
- Managed service providers in New York 54
- Managed service providers in San Francisco 25