In a significant validation of India’s burgeoning deep tech ecosystem, Bengaluru-based C2i Semiconductors has successfully extended its Series A funding round, bringing the total capital raised in this tranche to an impressive $16.7 million. This strategic infusion of capital, bolstered by the continued participation of TDK Ventures, underscores the critical role C2i Semiconductors is poised to play in addressing one of the most pressing challenges facing the artificial intelligence revolution: power management.
As AI data centers expand at an unprecedented rate, the sheer demand for electrical power and the subsequent heat generated threaten to bottleneck further growth. C2i Semiconductors stands at the forefront of tackling this formidable obstacle, developing innovative solutions that promise not only to optimize energy consumption but also to enhance the longevity and performance of vital AI hardware. This latest funding round is more than just a financial milestone; it is a clear signal from astute investors that C2i’s proprietary technology is not merely incremental, but a foundational leap forward for the global AI infrastructure.
About C2i Semiconductors
C2i Semiconductors is an Indian deep tech enterprise focused on revolutionizing power management solutions for the rapidly expanding AI data center and cloud infrastructure markets. Founded in June 2023 by a formidable team of industry veterans – Ram Anant, Vikram Gakhar, Preetam Tadeparthy, Dattatreya Suryanarayana, Harsha S B, and Muthusubramanian N V – the company’s mission is to rethink how power flows from the grid directly to the processor core.
At its core, C2i’s differentiation lies in its robust portfolio of proprietary intellectual property. The company’s platform includes the innovative Manas Controller, a software-defined controller featuring a unique control architecture that remains agnostic to Power Delivery Network (PDN) changes and varying processor requirements. Complementing this is the Sarayu Power Stage and a Modular Scalability architecture, designed to facilitate flexible phase operations crucial for higher-current applications, while also supporting Voltage Positioning-Driven (VPD) architectures and advanced voltage regulators (VRs).
The company has moved with remarkable speed since its inception. Prior to this Series A extension, C2i had already secured $4 million in November 2024 from deep tech specialist Yali Capital, demonstrating early investor confidence in its vision and technological roadmap. This rapid progression from seed capital to a significant Series A extension highlights the team’s ability to execute swiftly on complex semiconductor development. Recently, C2i Semiconductors proudly announced the tape-out of its smart power stage chip, a testament to its in-house semiconductor engineering team’s capability to develop advanced silicon end-to-end right here in India, a significant achievement for the nation’s deep tech aspirations.
The Deal
The latest transaction sees C2i Semiconductors successfully extending its Series A funding round, bringing the total amount raised in this Series A to an impressive $16.7 million. This extension builds upon the initial $15 million tranche of its Series A round, which was secured in February 2026.
The initial Series A round saw leading venture capital firm Peak XV Partners (formerly Sequoia India) take the lead, a clear signal of the company’s potential to become a category leader. Participating alongside Peak XV in the initial tranche were Yali Deeptech and TDK Ventures. For this latest extension, TDK Ventures, the corporate venture arm of the global electronics components giant TDK Corporation, increased its commitment, further solidifying its belief in C2i’s technology and market approach. While the company did not disclose its post-money valuation, the significant capital raise from such prominent investors speaks volumes about their perceived growth trajectory and the strategic value of its innovations.
The investor syndicate supporting C2i Semiconductors is particularly noteworthy. Peak XV Partners, with its track record of backing India’s most successful startups, brings not just capital but also invaluable strategic guidance and network access. Their investment thesis typically centers on identifying and scaling companies that are poised to dominate large, evolving markets. Yali Deeptech, having invested early, demonstrates a keen eye for nascent, high-potential deep technology ventures, validating C2i’s foundational research and development. The continued involvement of TDK Ventures is especially significant, given TDK’s deep expertise in materials science, energy, and advanced electronics. TDK Ventures often invests in companies that align with the parent company’s strategic interests and can potentially integrate into future supply chains or product offerings, indicating a strong belief in C2i’s core technological differentiation and its potential to become a key player in the power electronics landscape.
Use of Funds
The fresh capital from this extended Series A round is earmarked for two primary strategic objectives: expanding operations and accelerating product development efforts. This dual focus is critical for a deep tech company like C2i Semiconductors.
Expanding operations will likely translate into a significant ramp-up in engineering talent, particularly in areas like power electronics, integrated circuit design, and embedded software development. Given that their smart power stage chip was developed end-to-end in India, this expansion will further solidify Bengaluru’s position as a hub for advanced semiconductor innovation. It could also involve scaling up testing facilities, establishing robust supply chain partnerships for manufacturing, and building out essential business development and customer support teams.
Accelerating product development efforts signifies a commitment to rapidly iterate on existing designs and push the boundaries of their core technology. This capital will fuel further research and development into next-generation power management solutions, potentially exploring new materials, topologies, and software-defined control algorithms. The goal will be to refine their Manas Controller and Sarayu Power Stage, ensuring they remain at the cutting edge of efficiency and performance as AI workloads become even more demanding. This investment in R&D is crucial for maintaining their competitive advantage and capturing a larger share of the burgeoning market.
Market Opportunity
The market opportunity for C2i Semiconductors is nothing short of colossal. The global AI infrastructure capital expenditure is projected to reach an astounding $500-600 billion over the next 12-18 months, with forecasts suggesting it could surge to $1 trillion by 2030. This exponential growth is driven by the insatiable demand for processing power across various sectors, from large language models and autonomous systems to scientific computing and enterprise AI applications.
However, this rapid expansion comes with a profound challenge: power consumption and thermal management. Current power conversion solutions in AI data centers typically offer around 94% efficiency. While seemingly high, even a small percentage gain in efficiency can translate into massive savings and operational improvements at scale. This is precisely where C2i Semiconductors shines.
The company’s platform is projected to deliver over 96% power conversion efficiency. In a typical 100 MW AI data center, these efficiency gains, coupled with a significant reduction in heat generation, could lead to nearly $12 million in annual energy savings. Beyond the immediate financial benefits, C2i’s technology enables processors to run up to 4°C cooler. This seemingly modest temperature reduction has a profound impact, potentially extending the lifespan of expensive AI hardware, reducing maintenance costs, and enhancing overall system reliability. This combination of energy savings and hardware longevity positions C2i Semiconductors uniquely in a market desperate for sustainable and efficient solutions.
The competitive landscape includes established power management IC (PMIC) providers and integrated device manufacturers (IDMs). However, C2i’s system-level innovation, focusing on the entire power delivery chain from the grid to the processor, rather than just isolated components, gives it a distinct edge. Its proprietary intellectual property, developed end-to-end by an Indian team, offers a highly differentiated approach to a global problem, making it a compelling proposition for data center operators and AI hardware manufacturers alike.
What’s Next
With this fresh capital, C2i Semiconductors is well-positioned for an exciting phase of growth and innovation. The recent tape-out of its smart power stage chip marks a critical milestone, moving the company from advanced development to initial product realization. The immediate focus will undoubtedly be on bringing this chip to market, securing design wins with key AI infrastructure players, and demonstrating its promised efficiency and thermal benefits in real-world scenarios.
The founders, with their deep industry expertise, are expected to prioritize strategic partnerships with leading data center operators and original equipment manufacturers (OEMs) to integrate their solutions seamlessly into next-generation AI platforms. This could involve pilot programs, rigorous testing, and showcasing the tangible ROI their technology offers. Further product iterations, leveraging the modularity of their architecture, will likely follow, expanding their portfolio to address a wider range of power requirements and AI accelerator technologies.
Given the global nature of the AI infrastructure market, it wouldn’t be surprising to see C2i Semiconductors explore international expansion in the medium term, potentially establishing sales and support operations in key global data center hubs. The company’s journey is a powerful narrative of Indian deep tech not just catching up, but leading the charge in critical global technology domains, making the ecosystem keenly interested in their next set of breakthroughs.
