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Top Tech Companies in San Francisco Bay Area, CA (10,000+)

Abby Connect
Artificial Intelligence • Cloud • Machine Learning • Natural Language Processing • Software • App development • Conversational AI
2 Offices
100 Employees
25 Benefits
Helping Businesses Provide Great Customer Service Through Their Customer Interactions

Our live receptionist services have powered thousands of client interactions every day for over a decade, and we’re now expanding our technology portfolio with AI-driven products that combine human empathy with intelligent automation. The AI Receptionist Platform is Abby Connect’s latest innovation — an intelligent voice system that manages scheduling, intake, and communication in natural conversation. It’s a critical part of...

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Abby Connect
Monsoon
eCommerce • Software
3 Offices
25 Employees
18 Benefits

Monsoon Inc offers eCommerce retailers solutions to increase sales on marketplaces like Amazon, eBay, and more!

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Monsoon
Chalk
Artificial Intelligence • Cloud • Machine Learning • Software • Generative AI • Big Data Analytics
San Francisco
40 Employees
8 Benefits
Chalk helps teams ship production AI with speed, precision, and scale.

Chalk is building the data platform that powers the future of machine learning applications. We tear down complexity, latency, and scale barriers that have traditionally constrained ML capabilities. Our platform combines Rust-speed performance with elegant tools that developers love to use. Leading companies depend on Chalk for everything from stopping fraudulent credit card swipes, verifying identities, and maximizing clean energy...

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Chalk

Chalk's Top Stability & Growth Strengths

Investor Backing & Capital Strength: A $50M Series A at a ~$500M valuation announced in May 2025, led by Felicis with participation from existing investors, indicates strong investor confidence and runway to scale. Third‑party coverage frames Chalk as ambitiously competing on real‑time data processing for AI, reinforcing capital strength behind its strategy.

Strong Hiring & Retention: Company updates through April 2026 point to active team expansion across recruiting, design, support, and forward‑deployed engineering, alongside a GTM build‑out led by a VP of Revenue. New office activity (e.g., SF office‑warming and a new LA office) and an event slate signal organizational scaling.

Market Expansion: Public case studies and logos (e.g., Turo, Whatnot, MoneyLion, Mission Lane, Apartment List, Medely, Vital, Verisoul) show adoption across marketplaces, fintech, and healthcare for ranking, pricing, fraud, and underwriting. Participation in industry events (e.g., AI Council, Snowflake Summit) alongside geographic footprint growth suggests an expanding go‑to‑market presence.

8 Decimal Capital
Angel or VC Firm
San Francisco

8 DECIMAL CAPITAL is a multi-strategy investment firm focusing on token and equity investments. 8 Decimal currently has more than 40 portfolio companies with an AUM of 60M USD. The investment team consists of more than 10 venture capital veterans, researchers, and trading professionals.

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8 Decimal Capital
Common Trust
Financial Services
San Francisco
10 Employees

Common Trust is a financing platform that equips small business owners to exit to their employees and community. Using purpose trusts, our methodology is based on the idea that owners should be able to transition their business profitably while protecting their legacy, purpose and people through a sale, ensuring both high performance and community impact for generations to come.

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Common Trust
Zettabyte Inc
Artificial Intelligence • Information Technology • Software
3 Offices
3 Employees
Hiring Now

Zettabyte is a global innovator in AI data centre infrastructure and full-stack GPU software solutions, delivering high-performance, energy-efficient AI computing to sovereigns and enterprises. Zettabyte’s state-of-the-art Zware software suite integrates the entire AI computing infra stack, utilizing custom hardware, advanced liquid cooling, and sovereign AI infrastructure that prioritizes cybersecurity and energy efficiency, satisfying the demands of modern AI workloads. Zettabyte...

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Zettabyte Inc
Beta Bionics
Healthtech • Biotech
5 Offices
109 Employees
2 Benefits

Beta Bionics is a for-profit Massachusetts public benefit corporation.

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Beta Bionics
Builder.io
Artificial Intelligence
San Francisco
44 Employees
18 Benefits

Visually build on your tech stack

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Builder.io
Impulse (impulselabs.com)
San Francisco
69 Employees

Impulse is a climate tech company building state-of-the-art home appliance that deliver premium performance, all while paving the way for a clean energy future. Check out our career opportunities: jobs.ashbyhq.com/impulse

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Impulse (impulselabs.com)
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SINAI Technologies
San Francisco
69 Employees
23 Benefits

SINAI Technologies Inc. is mitigating climate change by enabling more intelligent emission measurement, scenario analysis and decarbonization strategy tools for organizations. We are the world’s leading Decarbonization-as-a-Service platform to measure, analyze, reduce and price emissions, using science-based methodologies. #decarbonize #carbonpricing

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SINAI Technologies
Sureify
Insurance • Software
3 Offices
222 Employees
23 Benefits Hiring Now

Sureify is a SaaS platform for Life and Annuity companies around the globe. Sureify’s sales, customer self-service engagement solution, and their up-sell cross-sell solutions enable life insurers to connect, service, and sell to their new and existing customers using the most life insurance focused platform in the market today. The enterprise platform solution is secure, scalable, and delivers pragmatic features...

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Sureify
Metronome
Software
2 Offices
134 Employees

Metronome is the usage-based billing platform that helps companies launch products faster. Easily model your pricing today, iterate confidently tomorrow

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Metronome
Proofpoint
Security • Cybersecurity
31 Offices
3,780 Employees
31 Benefits Hiring Now

We provide the most effective cybersecurity and compliance solutions to protect people on every channel including email, the web, the cloud, and social media.

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Proofpoint

Proofpoint's Top Stability & Growth Strengths

Strong Revenue Growth: Disclosures cite surpassing $2 billion in ARR in 2024 and reaching $2.45 billion by the end of 2025 with continued double-digit momentum. New customer additions and strong adoption of data security and collaboration offerings are described as contributing factors.

Strong Market Position & Advantage: Multiple analyst evaluations in 2024–2025 consistently name the company a Leader in core categories, and Gartner-referenced data cites No. 1 market share in Secure Email Gateway and Cloud Enterprise DLP. A large enterprise footprint, including a significant portion of the Fortune 100, further underscores competitive strength.

Market Expansion: Acquisitions such as Hornetsecurity and Acuvity are described as expanding reach into MSP/SMB channels, Europe, and AI security. New product introductions and a revamped partner program are credited with accelerating adoption across email, collaboration, and data protection.

LiveVox
Cloud • Other • Security • Software
3 Offices
619 Employees
35 Benefits

LiveVox is a next-generation contact center platform that powers more than 14 billion interactions a year. We seamlessly integrate omnichannel communications, CRM, and WFO capabilities to deliver an exceptional agent and customer experience while reducing compliance risk. Our reliable, easy-to-use technology enables effective engagement strategies on communication channels of choice to drive performance in your contact center. Our battle-tested risk...

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LiveVox
Nifty Games
Lafayette

Founded in 2018, Nifty Games brings free to play multiplayer sports gaming to mobile devices. Nifty Games are focused on delivering classic sports gaming style competition to the industry's highest growth segment, with relatively short game sessions that take mere minutes to complete.

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Nifty Games
Thena
Software
Palo Alto
27 Employees
Customer support AI for B2B teams | AI agents for Email, Slack & Livechat

Thena is a new-age customer support platform purpose-built for B2B teams. We're AI-first, and we connect to the modern communication stack like Slack and MS Teams. Join bold modern B2B teams from Vercel, Amplitude, FOX, Etsy, and LaunchDarkly.

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Thena
NCC Group
Information Technology • Consulting
18 Offices
2,292 Employees
17 Benefits

We assess, develop and manage cyber threats across our increasingly connected society. We advise global technology, manufacturers, financial institutions, critical national infrastructure providers, retailers and governments on the best way to keep businesses, software and personal data safe. With our knowledge, experience and global footprint, we are best placed to help businesses identify, assess, mitigate & respond to the risks...

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NCC Group

NCC Group's Top Stability & Growth Strengths

Profitability: Profitability is rising rapidly, with adjusted EBITDA up sharply and record gross margins driven by higher‑margin mix and operational discipline. EBITDA growth materially exceeded revenue growth in H1 FY2026.

Investor Backing & Capital Strength: The balance sheet has been materially strengthened by the Escode sale, moving to a strong net cash position and enabling a large tender offer and buybacks. This provides capacity for investment while supporting capital returns.

Cost & Operational Efficiency: Operational efficiency improvements and cost savings are highlighted as key drivers of performance, contributing to higher group and Cyber gross margins. The business reports tighter discipline and a mix shift to consulting and managed services that support scalable delivery.

Intelligent Fiber Optic Systems Corporation (IFOS)
Santa Clara
6 Employees

Intelligent Fiber Optics Systems Corporation, IFOS, of Santa Clara, California, develops and manufactures advanced optical sensing systems for the monitoring and control of high value assets in harsh environments. Products and industry solutions have been developed for use in aerospace, energy and medical fields. Led by an experienced Silicon Valley based team and supported by a distinguished Board of Directors...

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Intelligent Fiber Optic Systems Corporation (IFOS)
Revolution Medicines
Healthtech • Biotech
Redwood
548 Employees
4 Benefits Hiring Now

We are Revolutionaries – passionate in our singular pursuit of discovering, developing and delivering innovative, targeted medicines for patients living with cancer. To deliver on our vision, we work relentlessly in pursuit of cutting-edge therapeutic approaches to some of the toughest cancers. Our current focus is on RAS-addicted cancers, which account for 30 percent of all new human cancer diagnoses

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Revolution Medicines
rideOS
Software
San Francisco
42 Employees
23 Benefits

At rideOS, we are a technology division supporting Gopuff, the leading delivery solution for instant everyday needs. Our team of developers and mobility experts focus on accelerating innovation for Gopuff’s delivery optimization, fulfillment center operations, and other strategic initiatives. We place a strong emphasis on our culture, diversity, and employee wellbeing and are proud to maintain our small startup hustle...

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rideOS

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