Top Series A Data infrastructure companies

Databases, warehouses, lakes, pipelines, and observability for production data. Filtered to companies whose latest disclosed round is Series A.

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Ranked by current headcount across Series A Data infrastructure companies. Refreshed daily.

1
Persistent Systems· Pune Division, Maharashtra, India
We are an AI-led, platform-driven Digital Engineering and Enterprise Modernization partner, combining deep technical expertise and industry experience to help our clients anticipate what’s next. Our offerings and proven solutions create a unique competitive advantage for our clients by helping them reimagine the world. We work with many industry-leading organizations across the world, including 20 Fortune 50 companies and 4 of the 5 top banks in both the US and India, and numerous innovators across the healthcare ecosystem.Our disruptor’s mindset, commitment to client success, and agility to thrive in the dynamic environment have enabled us to sustain our growth momentum. Persistent has been recognized across top industry platforms for innovation, leadership, and inclusion. We reported $1,654.4M FY26 revenue with 17.4% Y-o-Y growth. We have delivered 24 sequential quarters of growth with $436.0M in Q4 FY26 revenue, up 3.2% Q-o-Q and 16.2% Y-o-Y growth. Our 27,500+ global team members, located in 18 countries, have been instrumental in helping the market leaders transform their industries. We have been recognized as the Fastest Growing IT Services Brand Globally in the 2026 Brand Finance IT Services 25 Report. We were named a Leader in the Everest Group Private Equity (PE) Services PEAK Matrix® Assessment 2026 and Software Product Engineering PEAK Matrix® Assessment 2026.Our Company fosters a values-driven and people-centric work environment that enables our employees to:- Accelerate growth, both professionally and personally- Impact the world in powerful, positive ways, using the latest technologies- Enjoy collaborative innovation, with diversity and work-life wellbeing at the core- Unlock global opportunities to work and learn with the industry’s best Let’s unleash your full potential at Persistent - persistent.com/careers
- Series A
- 29.2k employees
2
Thales Cyber and Digital· Vannes, Brittany, France
Thales Cyber and Digital is a global leader in digital security, bringing trust to an increasingly connected world. We design and deliver a wide range of products, software and services based on two core technologies: digital identification and data protection. Our technology is at the heart of modern life, from payment to enterprise security and the internet of things. It enables our clients to deliver secure digital services for billions of individuals and things. We are part of the Thales group, a €19bn international organization with more than 80,000 employees in 68 countries worldwide.
- Series A
- 8.2k employees
- Founded 2007
3
iSoftStone· Plano, Texas, United States
iSoftStone is a global IT service and consulting company that creates value and drives success through technology solutions, service excellence, and digital innovation. We specialize in web and application development, software testing and support, data and content management, digital experience, accessibility, and data for machine learning and AI. With 20 delivery centers and more than 90,000 employees worldwide, iSoftStone is proud to serve some of the world’s most well-known businesses, including 90+ Fortune Global 500 companies.
- Series A
- 7.4k employees
- Founded 2005
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4
Inspur Group· Jinan, Shandong, China
Inspur group is China's leading cloud computing, big data service provider with three listed companies: Inspur Information, Inspur Software and Inspur International, covering four large industry groups of cloud data center, cloud services & big data, smart city, and smart enterprises.Inspur offers IT products and services that satisfy the information needs in more than 120 countries and regions. As one of China's senior IT brands, for over 70years, Inspur has been committed to being an advanced IT product manufacturer and a leading IT solution supplier who leads information trend and promote civilization.
- Series A
- 5.9k employees
- Founded 2021
5
Altruist Technologies Pvt. Ltd.· Panchkula, Haryana, India
Started in the year 2005, Altruist Technologies has emerged as a front runner in the Mobile Social Networking space in India, Indonesia & Nigeria and fast spreading to other similar geographies. Besides its flagship voice based mobile social network it runs jobsonphone, manages end to end the mobile/digital strategy for multiple media clients and brands, hosts and manages voice infrastructure for leading content owners and distributors. It has made successful forays into M-Governance, Handset based applications and a Video sharing platform.Altruist has emerged as a proven company in the field of Voice and Web Based Value Added Services, Business Process Outsourcing , Information Technology and Interactive Communication solutions to Carrier, WASP, ISP, CSP and Corporate clients with its diligence, operations reviews, analysis of business prospects and interim management.Altruist is the clear market leader in the social networking domain of the Indian MVAS market. It has got strong technology capabilities to provide an array of services in the MVAS space. Altruist has tie-ups with all leading Indian Telecom Operators and with a collective reach of over 55% of the total mobile subscribers.
- Series A
- 5.8k employees
- Founded 2005

6
OPEN· Levallois-Perret, Île-de-France, France
Rejoindre Open, c’est choisir l’innovation à grande échelle ! Avec 4 000 collaborateurs, Open est l’industriel de l’innovation, AI First, au service de la compétitivité des grandes entreprises et organisations publiques.Nous accompagnons chaque étape de leur transformation digitale, en conciliant performance technologique, souveraineté et sobriété numérique. Concrètement, rejoindre Open, c’est participer à la mise à l’échelle des innovations, en intervenant sur des projets structurants. Vous contribuez à la conception, au développement et à l’industrialisation de solutions technologiques de pointe, au cœur des enjeux data & IA, cloud et DevSecOps, reposant sur une plateforme agentique conçue pour intégrer l’IA au cœur des chaînes de production logicielle. Chez Open, la technologie est pensée comme un levier durable : excellence industrielle, qualité des architectures, sécurité, mais aussi écoconception et IA frugale font partie des choix techniques du quotidien. Rejoindre Open, c’est évoluer dans une culture qui favorise la montée en expertise, portée par l’innovation, les défis technologiques et l’exigence industrielle, tout en plaçant l’épanouissement professionnel au cœur des parcours, et ce dans un environnement professionnel collaboratif et exigeant. Parce que votre talent mérite notre engagement, « Recrutez-Nous » pour créer votre différence !
- Series A
- 4.7k employees
- Founded 1989
7
Quantiphi· Marlborough, Massachusetts, United States
Quantiphi is an award-winning AI-first digital engineering company driven by the desire to reimagine and realize transformational opportunities at the heart of the business. Since its inception in 2013, Quantiphi has solved the toughest and most complex business problems by combining deep industry experience, disciplined cloud, and data-engineering practices, and cutting-edge artificial intelligence research to achieve accelerated and quantifiable business results. Learn more at www.quantiphi.com.
- Series A
- 4.3k employees
- Founded 2013
8
Stealth· San Rafael, California, United States
Helping Stealth Startups to Launch, Hire & Scale.Here Recruiters Usually List Stealth Roles for early stage startups and job seekers can connect and consider those roles.
- Series A
- 4.2k employees
- Founded 2014
9
CHECK24 Vergleichsportal GmbH· Munich, Bavaria, Germany
CHECK24, das Vergleichsportal im Internet, ist ein junges, aufstrebendes Unternehmen. Wir bieten Privatkunden kostenlose Vergleiche in den Bereichen Versicherungen, Energie, Finanzen, Telekommunikation, Reisen und Shopping. Damit schaffen wir Transparenz, die sich für unsere Kunden direkt durch günstige Tarife und Preise auszahlt!Unser Erfolg ist nur möglich durch den Teamgeist und die hohe Motivation unserer Mitarbeiter, beides zusammen bringt uns täglich weiter. An unserem Hauptsitz im Herzen Münchens und weiteren Standorten in Leipzig, Münster, Köln und Hamburg arbeiten wir in einem Arbeitsklima, das von Start-up Mentalität und Offenheit geprägt ist. Obwohl wir seit knapp 15 Jahren am Markt sind und mehr als 600 Mitarbeiter beschäftigen, haben wir uns diese Kultur und Arbeitsatmosphäre erhalten.
- Series A
- 4k employees
- Founded 1999
10
Centific· Redmond, Washington, United States
Zero distance innovation for GenAI creators and industriesExpertly engineering platforms and curating multimodal, multilingual data, we empower the ‘Magnificent Seven’ and enterprise clients with safe, scalable AI deploymentWe a team of over 150 PhDs and data scientists, along with more than 4,000 AI practitioners and engineers.We bring platforms, partners and 1.8 million vertical domain experts to create high-quality pre-trained datasets, fine-tuned industry-specific LLMs, and RAG pipelines supported by vector databases. These innovations can reduce GenAI costs by up to 80% and bring GenAI solutions to market 50% faster in 230 locales.
- Series A
- 3.4k employees
- Founded 2020

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Find engineers and founders at Series A Data infrastructure companies

Series A Data infrastructure companies are some of the most active hirers in the market. The list above ranks the largest Data infrastructure companies whose latest disclosed round is Series A, by current headcount, drawn from public LinkedIn and Crunchbase records. Across 4,919 matching companies, you’ll find senior engineers, founding designers, and operators worth tracking.

Companies at this stage in Data infrastructure share a profile: a working product, fresh capital, and a hiring plan that wants senior people yesterday. Looking at headcount, last round, and HQ side by side gives you a quick read on where Data infrastructure talent is concentrating right now.

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How this list is built

Refolk pulled Data infrastructure companies whose latest disclosed funding round is Series A from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 5 employees. The list refreshes once a day.

Last refreshed: Wed, 05 Aug 2026 15:18:30 GMT

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