Tamtam Start free

The 100 largest companies in Sunnyvale

Tamtam tracks 138 companies headquartered in Sunnyvale. This list ranks the 100 largest by number of employees on LinkedIn, led by Synopsys Inc, LinkedIn and Fortinet. Their median headcount is 484. Half of them were founded in 2008 or later.

๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale100 companiesUpdated Oct 9, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
Synopsys Incsynopsys.com

It provides comprehensive silicon and systems design solutions, partnering with customers to enhance R&D capabilities and drive innovation across industries.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 27,809 n/a
2
LinkedIncareers.linkedin.com

It connects professionals globally, offering services like Talent Solutions, Marketing Solutions, Sales Solutions, and Premium Subscriptions for productivity and success.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 23,635 n/a
3
Fortinetfortinet.com

Fortinet enables trust in the digital world by protecting people, devices, and data for enterprises, service providers, and government organizations

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 16,304 2000
4
Juniper Networksjuniper.net

Develops intelligent, agile, and secure networking products and solutions serving global service providers, enterprises, and government organizations worldwide.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 9,059 1996
5
Adobe Photoshop - Tips, Tricks, & Tutorials

A comprehensive resource offering tips, tricks, and tutorials to unlock the full potential of Adobe Illustrator for graphic design professionals and beginners

Graphic Design ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 6,373 n/a
6
Xoriantxoriant.com

Xoriant is a global digital engineering firm that turns imaginative visions into realities, accelerating business outcomes with innovative technology solutions

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 5,220 1990
7
Proofpointproofpoint.com

A company specializing in cybersecurity and compliance solutions, protecting people across email, web, cloud, and social media channels effectively

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 5,200 n/a
8
Cepheidcepheid.com

Healthcare company pioneering molecular diagnostics with automated systems and tests for a wide range of infections, diseases, and oncology, delivering actionable results Partnered with industry leader for expertise and solutions

Biotechnology Research ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 4,675 1996
9
Amazon Lab126amazon.jobs

A San Francisco Bay Area team that designs and engineers consumer electronic devices such as Fire tablets, Kindle e-readers, and Amazon Echo

Computers and Electronics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 4,136 2004
10
Adobe Illustrator - Tips, Tricks, & Tutorials

Helping individuals master Adobe Illustrator through a comprehensive collection of tips, tricks, and tutorials for professionals and beginners in graphic design

Graphic Design ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 3,219 n/a
11
JFrogjfrog.com

This company provides a software supply chain platform for automating trusted releases with end-to-end visibility, security, and control

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 2,417 2008
12
Good Powered by BlackBerryblackberry.com

Provider of secure mobile solutions including device management, collaboration apps, and analytics for enterprises and governments worldwide.

Wireless Services ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 2,065 1996
13
Finisar Corporationcoherent.com

Follow us at the provided link for updates and information about our rebranding as Coherent Corp Exciting changes ahead!

Telecommunications ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 1,709 n/a
14
Cloverclover.com

Innovative point of sale solutions for small & medium businesses, enhancing customer interactions and creating a seamless commerce operating system Join our team in Sunnyvale, CA!

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 1,685 2011
15
No Companynocompany.com

This company specializes in providing a wide range of products/services but does not provide a specific description on its LinkedIn page

Retail Art Supplies ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 1,619 2019
16
Applied Intuitionappliedintuition.com

Vehicle software supplier accelerating safe and intelligent machines globally through simulation and validation platforms for automotive, trucking, and construction industries Headquarters in CA

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 1,593 2017
17
Upworkupwork.com

A global platform connecting businesses with independent talent, unlocking potential through trust-driven collaboration across a wide range of skills

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 1,487 n/a
18
Adobe Premiere Pro - Tips, Tricks, & Tutorials

Providing comprehensive education through multiple learning methodologies to ensure a deep understanding of all subjects

Design Services ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 1,423 n/a
19
RUCKUS Networksruckusnetworks.com

The company builds purpose-driven networks for industries with high-performance wireless and wired solutions, IoT, assurance, security, and AI-driven software for exceptional connection experiences

Computer Networking Products ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 1,388 2004
20
Intermedia Intelligent Communicationsintermedia.com

Cloud communications company providing integrated solutions for voice, video, chat, contact center, email, security, and more, with a focus on exceptional customer service and partner support

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 1,381 1993
21
Plug and Playplugandplaytechcenter.com

global platform connecting startups, corporations, investors across multiple industries to foster innovation, investment, and collaboration worldwide.

Venture Capital and Private Equity Principals ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 1,311 2006
22
Fujitsu Americasfujitsu.com

Leading provider of IT services and solutions globally, specializing in consulting, systems integration, managed services, cloud services, and server technologies, with a focus on sustainability and innovation

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 1,173 1935
23
Spansion is Cypress Semiconductorinfineon.com

A leading semiconductor company offering high-performance solutions for embedded systems in automotive, industrial, networking, consumer, and mobile devices worldwide

Semiconductor Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 1,097 2003
24
Carbon Healthcarbonhealth.com

A tech-enabled healthcare company with a human-centered approach, aiming to break down traditional healthcare barriers and provide accessible personalized care

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 1,090 2015
25
Yohannayohanna.org

The company offers a platform for recruiters and job seekers to connect, with job listings and collaboration opportunities available

Non-profit Organizations ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 994 n/a
26
Cerebrascerebras.ai

Accelerating deep learning through cutting-edge technology, including the fastest AI computer with a revolutionary chip for faster neural network training Join our team!

Semiconductor Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 930 2015
27
Illumioillumio.com

Leading ransomware, breach containment; redefining cyberattack containment, operational resilience; AI security graph identifies, contains threats across hybrid multi-cloud environments; stopping attack spread.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 916 2013
28
City of Sunnyvalesunnyvale.ca.gov

The company provides innovative and cost-effective public safety services, along with a variety of cultural events, job training programs, and city services in Sunnyvale, CA

Government Administration ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 876 1903
29
Mellanox Technologies

A leading supplier of high-performance InfiniBand and Ethernet interconnect solutions for servers and storage, accelerating application run time and maximizing business results

Semiconductor Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 840 1999
30
eGain Corporationegain.com

AI-powered knowledge management platform enhancing customer experience and reducing service costs for Fortune 500 clients and government agencies.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 782 1997
31
Crestacresta.com

It enhances contact center performance using generative AI for real-time insights, coaching, and tracking agent interactions to improve efficiency.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 727 2017
32
Truckinggracelogisticsinc.com

Grace Logistics INC offers fast, reliable, and cost-effective freight services, ensuring seamless and timely delivery with custom-built solutions and support

Transportation, Logistics, Supply Chain and Storage ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 727 2019
33
Leadlead.bank

State-chartered bank, banking-as-a-service platform for builders, innovators. Offers banking products, services for partners. Also full service Business and Personal banking.

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 718 1928
34
Evergent Technologies Inc.evergent.com

A leading provider of subscription and partner management solutions, offering enterprise-grade software for subscription management, monetization, royalties, customer retention, and brand loyalty

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 663 2008
35
Ooma, Inc.ooma.com

The company creates innovative communications solutions for businesses and consumers, offering cloud-based telephony, home security, HD voice quality, mobile integration, and smart connected devices

Telecommunications ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 652 2003
36
Clariclari.com

It provides revenue teams with insights to enhance efficiency, predictability, and growth, improving visibility and accuracy in revenue processes.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 618 2012
37
Jumio Corporationjumio.com

Provides AI-powered identity intelligence, anchored in biometric authentication and automation, to establish and maintain trust for organizations and fight fraud.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 613 2010
38
Star One Credit Unionstarone.org

A member-owned financial institution in Silicon Valley providing valuable financial services to over 123,000 members, with a focus on financial well-being and benefits

Banking ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 610 1956
39
Pharmacyclics, an AbbVie Companypharmacyclics.com

A biopharmaceutical company focused on developing novel cancer therapies to improve patient outcomes and address unmet medical needs

Pharmaceutical Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 590 1991
40
R.S. Hughes Co., Inc.rshughes.com

Dynamic distributor of industrial supplies, with extensive inventory of products from leading manufacturers Specializing in sales and service solutions for manufacturing companies

Wholesale ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 555 1954
41
Azulazul.com

Provides trusted open source Java platform with exceptional performance, security, and value, serving millions of developers and top global businesses.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 555 2002
42
Matterportmatterport.com

Revolutionizing the built world through spatial computing technology, turning buildings into data for improved planning, construction, operations, and marketing worldwide

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 531 2011
43
Indium Software - Independent Software Testing Companyindiumsoft.com

Global Independent Software Testing Services Company with a focus on multiple domains, offering on-demand QA services, specialized testing, and innovative frameworks for accelerated testing

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 523 1999
44
Dental+

The company offers quality certification services specifically tailored for dental clinics, ensuring high standards of care and professionalism

Consumer Services ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 514 n/a
45
HackerEarthhackerearth.com

Developer assessment software helping companies accurately measure developer skills, improve engineering hires, reduce recruiter screening time, and engage developers in hackathons and coding challenges

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 512 2012
46
TiDB, powered by PingCAPpingcap.com

Leading open-source distributed SQL database, powers modern applications with elasticity, versatility, reliability for world-renowned organizations.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 508 2015
47
Real-Time Innovations (RTI)rti.com

RTI provides infrastructure software for intelligent distributed systems, supporting various industries including automotive, defense, energy, and healthcare with advanced technologies.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 507 1991
48
Sunnyvale School Districtsesd.org

The Sunnyvale School District provides well-rounded education focusing on academic and social-emotional needs for 6,800 students in Silicon Valley

Education Administration Programs ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 487 1899
49
Yugabyteyugabyte.com

Innovative company behind YugabyteDB, a distributed database for cloud native applications, offering high performance, global data distribution, and seamless Kubernetes deployment

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 486 2016
50
Sierra Circuitsprotoexpress.com

Specializes in PCB manufacturing, assembly, and High-Density Interconnect technology, providing quality, reliability, and single-point support for customers.

Computers and Electronics Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 484 1986
51
SMARTesmarte.pro

It provides a B2B sales intelligence platform that integrates with sales tools, offering contact insights and enhancing sales workflows for teams.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 473 2005
52
Alpha & Omega Semiconductoraosmd.com

A global supplier of power semiconductors specializing in Power MOSFET, IGBT, IPM, and Power IC products for various advanced electronic applications

Semiconductor Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 467 2000
53
ThinkSys Incthinksys.com

An award-winning technology company providing software development, QA, and IT services worldwide, with a focus on customer satisfaction and quality solutions

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 453 2012
54
Crazy Maple Studiocrazymaplestudios.com

A Bay Area start-up offering mobile gaming, reading, and streaming experiences Users can enjoy interactive stories, write romance, and watch HD content

Entertainment Providers ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 414 2016
55
Ceribell โ”‚ AI-Powered Point-of-Care EEGceribell.com

A revolutionary AI-powered EEG system improving seizure management in acute care by providing rapid, accurate diagnostic information and continuous monitoring

Medical Equipment Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 408 2014
56
Fission Labsfissionlabs.com

Software development company offering end-to-end technology solutions including product development, cloud engineering, big data analytics, DevOps consulting, and AI/ML solutions

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 407 2008
57
Surabhisurabhillc.com

A multifaceted company specializing in healthcare revenue cycle management, medical equipment distribution, and BPO support services with a focus on quality and efficiency

Business Consulting and Services ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 377 2014
58
AutoDesk Civil 3D & AutoCADyoutube.com

Specializes in offering courses in Highways Design, Civil 3D, and AutoCAD to enhance skills and knowledge in these areas

Civil Engineering ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 375 n/a
59
HCL Unicahcl-software.com

Marketing software for digital transformation, empowering organizations with enterprise marketing solutions for valuable customer relationships and measurable business outcomes

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 360 1992
60
Emumbaemumba.com

Emumba is a software services company based in Islamabad, specializing in frontend, backend, QA, and DevOps for world-class clients worldwide

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 330 2011
61
The King's Academy, Sunnyvale, CAtka.org

A Christ-centered junior and senior high school focusing on academic excellence, servant leadership, and enduring relationships to honor and glorify Jesus Christ

Primary and Secondary Education ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 319 1991
62
Surefox North Americasurefox.com

We specialize in providing custom security solutions with a focus on supporting military veterans and seamlessly integrating into our clients' lives

Security and Investigations ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 315 2016
63
Pathways Home Health and Hospicepathwayshealth.org

A Bay Area not-for-profit organization providing hospice, home health, and palliative care services to over 5,000 families annually

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 311 1977
64
Maantic Incmaantic.com

A global strategy and solutions integration firm based in California, specializing in business application implementation including BPM, CRM, RPA, AI/ML, and digital marketing

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 310 2009
65
Level 10 Constructionlevel10gc.com

A full-service general contractor specializing in corporate, healthcare, education, technology, and life sciences markets, offering preconstruction, design/build, MEP, green construction, and sustainability services

Construction ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 310 2011
66
Lyriclyric.tech

Empower supply chain teams with data, advanced science, configurable workflows, and apps to create smarter, sustainable supply chain solutions.

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 307 2021
67
Paystackpaystack.com

A trusted payment solution for businesses worldwide, enabling online and offline payments globally with over 60,000 satisfied clients

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 306 2015
68
IDEC USAidec.com

A global manufacturer offering automation and control products with sales offices in the US, providing reliable solutions for over six decades

Automation Machinery Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 280 1945
69
Cogniancecogniance.com

Global design and technology company partnering with startups and corporations to innovate, design, and build technology-driven solutions that meet customer needs and drive success

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 275 2008
70
JSR Micro, Inc.jsrmicro.com

A global provider of innovative semiconductor, life sciences, and energy materials, leveraging polymer expertise to address unique challenges across industries

Semiconductor Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 266 1957
71
KloudGinkloudgin.com

A mobile-first, cloud-based solution for field service and asset management, automating work processes, boosting worker productivity, and enabling new revenue streams

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 239 2014
72
Shangri-La Hotels and Resorts 18

Luxury hotel and resort group with 18 locations worldwide, offering high-end accommodation, dining, and wellness experiences in beautiful destinations

Chemical Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 213 2009
73
Blue Coat Systems acquired by Symantecbroadcom.com

Global leader cyber security. Threat intelligence network. Protects customers from next generation cyber attacks. Secures company, government, individual data.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 212 1996
74
SutiSoft, Inc.sutisoft.com

A leading provider of integrated business management solutions, offering both on-premise and on-demand solutions with a focus on customization and ease of integration

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 195 2009
75
Caspiocaspio.com

An all-in-one low-code platform for creating data-driven apps, enabling users to streamline operations, automate workflows, and improve customer experience globally

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 193 2000
76
Financial Enginesedelmanfinancialengines.com

Financial Engines offers comprehensive financial planning, investment management, and advice to help individuals achieve greater financial clarity and meet their goals

Financial Services ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 191 1996
77
Go Paladingopaladin.org

Non-profit organization supporting minority entrepreneurs in the tech industry by providing resources and connections to elevate their ideas

Civic and Social Organizations ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 185 2016
78
Tapas Ray Chowdhuryjbmgroup.com

Global automotive multinational corporation specializing in various units within the automotive industry

Motor Vehicle Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 181 n/a
79
The Worlds Timestheworldstimes.com

An English language daily newspaper providing breaking news and updates from around the world Contact us at sales@theworldstimescom

Newspaper Publishing ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 179 2021
80
Zultyszultys.com

Provider of omnichannel Unified Communications solutions for mobile workforce, offering cloud, premise-based, and hybrid options with consistent user experience

Telecommunications ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 174 2006
81
ZERo disoccupazione

This group aims to facilitate the meeting of job seekers and offers, providing a platform to exchange ideas and advice on finding or changing jobs

Consumer Services ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 166 n/a
82
Project Management Skillscoursya.com

Offering free project management training and resources to interested individuals Follow for updates and valuable content ๐ŸŒทโ˜บ๏ธ

E-Learning Providers ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 165 n/a
83
Test Universitygmail.org

This company offers unparalleled services and products

International Affairs ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 164 2020
84
Comtel Systems Technology, Inc.comtelsys.com

A full service systems integrator offering communications and security solutions to Commercial, Healthcare and Education sectors since 1982 Highly trained team for project handling

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 162 1982
85
CPP, Inc.cpp.com

Specializing in people development, this company provides a range of tools and solutions to improve organizational performance and help individuals flourish worldwide

Professional Training & Coaching ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 161 n/a
86
KNOREXknorex.com

A technology company founded in 2009, providing programmatic advertising solutions to simplify digital marketing and accelerate business growth through comprehensive omni-channel platforms

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 161 2009
87
Morley Moss Inc.morleymoss.com

An electrical services firm with over 40 years of experience in consulting, construction, and project management, offering a wide array of electrical solutions

Construction ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 160 n/a
88
HealthTaphealthtap.com

Virtual primary care practice providing affordable, quality care through long-term relationships with personal doctors, free texting, video appointments, urgent care, and expert advice

Hospitals and Health Care ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 159 2010
89
Nuage Networks from Nokianuagenetworks.net

A company that focuses on providing reliable and instant network connectivity for cloud computing, ensuring seamless access and mobility for users

Telecommunications ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 159 2012
90
CustomPax Holdings Ltdcustompax.com

Revolutionizing the supplement market by offering customized formulations through a disruptive technology platform, empowering both doctors and consumers for better health outcomes

Wellness and Fitness Services ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 159 2005
91
EBR Systems, Inc.ebrsystemsinc.com

Innovative company developing wireless cardiac stimulation technology to improve treatment for heart failure patients without the need for a left ventricle lead

Medical Equipment Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 158 2003
92
Ascend Clinicalclinical.aclab.com

A leading provider of laboratory and environmental testing services, specializing in kidney disease testing and offering innovative software for dialysis clinics

Medical and Diagnostic Laboratories ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 157 2000
93
Laceworkfortinet.com

This company provides a data-driven cloud-native application protection platform. It is now part of Fortinet, focusing on cloud security solutions.

Computer and Network Security ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 156 2015
94
LinkedIn Localmembers.linkedin.com

This company organizes events in local cities to help people connect with the individuals behind LinkedIn profiles, fostering thriving communities #CreatingConnection

Events Services ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 155 2017
95
Cortina Systemsmarvell.com

Provider of high-performance communications semiconductor solutions for network connectivity, optical transport, data centers, and digital home solutions

Semiconductor Manufacturing ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 153 2001
96
CrunchLabscrunchlabs.com

YouTube channel by former NASA engineer Mark Rober offering STEM toy subscription box for kids, encouraging curiosity and exploration

Education ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 153 2022
97
Fandango at Homevudu.com

This company delivers movies and TV shows in high quality on-demand across multiple devices, making it easy to watch anytime, anywhere

Entertainment Providers ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 150 2005
98
CloudGeometrycloudgeometry.com

CloudGeometry offers expert guidance and technical services for developing and operating cloud workloads using both commercial and open-source technologies

IT Services and IT Consulting ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 149 2014
99
Comcast Silicon Valley Innovation Centercomcast.com

A satellite office of Comcast in Sunnyvale, CA creating innovative products for entertainment, communications, and the digital home, seeking dynamic team members

Software Development ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 149 2011
100
MeshyAImeshy.ai

A global team of 3D artists, designers, and developers using AI to accelerate 3D content creation for game developers and creative professionals

Technology, Information and Internet ๐Ÿ‡บ๐Ÿ‡ธ Sunnyvale 148 n/a

Turn this list into pipeline

Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.

Build your own list, free

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 Oct 9, 2026.

More company lists in Sunnyvale

The same list elsewhere in United States