The companies in Menlo Park are predominantly large firms in software development, staffing and recruiting, and business consulting. Noteworthy examples include Meta, a social technology platform company; Robert Half, which connects professionals with companies; Protiviti, a global consulting firm; and Genesys, a provider of an AI-powered platform for customer and employee experiences.
A common thread among these companies is their focus on technology and professional services. Several companies, such as Robert Half, Robert Half Finance & Accounting, Accountemps, and Robert Half Management Resources, are specialized in staffing and recruiting, indicating a strong presence of human resources and talent acquisition services in Menlo Park.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 | 164,418 | ||||
| 2 |
Robert Halfroberthalf.com
Connecting skilled professionals with companies through contract, temporary, and permanent placements in finance, technology, marketing, legal, and administrative sectors. |
26,429 | |||
| 3 |
Protivitiprotiviti.com
Global consulting firm offering expertise in finance, technology, operations, data, digital, legal, HR, risk, and internal audit to help clients navigate future challenges |
13,479 | |||
| 4 |
Genesysgenesys.com
It provides an AI-powered platform for organizations to enhance customer and employee experiences, driving loyalty, engagement, and operational efficiency. |
8,573 | |||
| 5 |
WhatsAppwhatsapp.com
It provides a reliable messaging service for over 1.5 billion users globally, enabling communication and sharing across various devices and locations. |
5,294 | |||
| 6 |
Robert Half Finance & Accountingroberthalf.com
Specialized financial recruitment service with experienced recruiters connecting skilled accounting and finance professionals with leading companies worldwide |
4,940 | |||
| 7 |
Robinhoodrobinhood.com
This company aims to make financial markets accessible to all by offering intuitive and affordable trading options, empowering everyone to participate |
4,834 | |||
| 8 |
Accountempsroberthalf.com
Specialized temporary staffing firm for accounting, finance, and bookkeeping professionals, providing exceptional service to skilled professionals and leading companies worldwide |
3,544 | |||
| 9 | 2,968 | ||||
| 10 |
Robert Half Management Resourcesroberthalf.com
A leading provider of senior financial and business systems professionals for interim roles worldwide, specializing in finance, IT, audit, and more |
2,125 | |||
| 11 |
Exponentexponent.com
A premium engineering and scientific consulting firm offering multidisciplinary expertise to solve complex challenges and innovate for a safer, sustainable world |
1,755 | |||
| 12 |
Robert Half Legalroberthalf.com
Legal staffing division providing highly skilled legal professionals on a project or full-time basis to law firms and corporate legal departments globally |
1,298 | |||
| 13 |
Samsung Strategy and Innovation Center
A technology innovation center fostering disruptive technologies, investing in startups, and expanding business lines through partnerships and acquisitions |
1,283 | |||
| 14 | 1,105 | ||||
| 15 |
AI at Metaai.meta.com
Advancing AI through open science and collaboration, focusing on infrastructure, NLP, generative AI, vision, and human-computer interaction. |
1,101 | |||
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. | |||||
| 16 |
Molocomoloco.com
Machine learning platform providing performance advertising, commerce media solutions, and streaming monetization through first-party data to scale user acquisition and revenue for businesses. |
958 | |||
| 17 | 588 | ||||
| 18 | 564 | ||||
| 19 |
Lightspeedlsvp.com
A multi-stage venture capital firm investing in disruptive innovations across Enterprise, Consumer, Health, and Fintech sectors globally with a $18B managed platform |
545 | |||
| 20 | 409 | ||||
| 21 |
Silver Lakesilverlake.com
Global technology investment firm managing over $110 billion in assets, supporting portfolio companies generating $260 billion revenue annually. |
341 | |||
| 22 |
Notable Capitalnotablecap.com
Notable Capital is a US-based venture capital firm investing in early-to-growth-stage companies in cloud infrastructure and business/consumer applications worldwide |
314 | |||
| 23 |
Accel-KKRaccel-kkr.com
Technology-focused investment firm with $19 billion in capital commitments, specializing in software and IT enabled businesses through strategic partnerships and value-building investments in middle-market companies |
301 | |||
| 24 |
DCM Venturesdcm.com
A venture capital firm with over $4 billion invested in 300+ technology companies in the US and Asia, providing operational guidance and global resources |
283 | |||
| 25 |
Norwestnorwest.com
Investment firm supporting entrepreneurs with capital, expertise, and resources across consumer, enterprise, and healthcare sectors globally. |
238 | |||
| 26 |
Mongabaynews.mongabay.com
This company publishes news and information on tropical forests, wildlife, and conservation issues, examining the impact of climate, technology, economics, and finance |
204 | |||
| 27 |
Sapphire Venturessapphireventures.com
Global venture capital firm with $11B+ in AUM, investing in visionary teams and funds to scale companies, resulting in public listings and acquisitions |
198 | |||
| 28 |
BGVbenhamouglobalventures.com
Investment platform supporting startups globally with AI-driven automation, operational expertise, and cross-border venture capital for transformative growth. |
151 | |||
| 29 |
Shanda Groupshanda.com
A private investment firm founded in 1999, with a focus on venture capital, public market investments, real estate, and philanthropy in brain research |
147 | |||
| 30 |
Riverwood Capitalriverwoodcapital.com
Riverwood Capital invests in high-growth technology companies, providing expertise and growth capital to scale globally with offices in multiple locations |
93 | |||
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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 Menlo Park
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