Calligo Technologies Raises $1.1 Million in Pre-Series A Round to Expand R&D and Tech Talent

• ByStartupStory     |    April 7, 2025

Calligo Technologies, a deep-tech semiconductor startup focused on High-Performance Computing (HPC), Big Data, and AI workloads, has raised $1.1 million in a Pre-Series A funding round. The round was co-led by Seafund and Artha Venture Fund, reinforcing the growing investor confidence in India’s emerging semiconductor ecosystem.

This latest round comes after CalligoTech’s earlier raise of $1.57 million from KITVEN and others. According to the company’s official statement, the fresh capital will be deployed towards R&D expenses for developing Version 2.0 of its silicon chip and platform, as well as expanding its engineering talent and technical capabilities.

Founded in 2012 by Anantha Kinnal, Rajaraman Subramanian, and Vinay N. Hebbali, Calligo Technologies specializes in addressing performance bottlenecks in computing systems that are essential for large-scale modeling, simulations, and AI model training and inference.

“Calligo has modified RISC-V C/C++/gFortran/Python compilers, frameworks, and libraries to support Posits and generate Posit-enabled executables natively,” the company said in a press release.
“Our approach requires no source-level modifications to run HPC/AI applications.”

CalligoTech’s innovation lies in enabling Posit arithmetic, which offers superior accuracy and efficiency over traditional floating-point formats, without the need for changes in the application codebase—a crucial development for organizations deploying large-scale computing and AI infrastructure.

The startup has achieved significant milestones over the past year, including the First Pass Silicon of Version 1.0, shipping of accelerator boards to early customers, and collaborations with U.S. universities, national laboratories, and supercomputing centers. These efforts also signal Calligo’s soft launch of its U.S. operations, aimed at improving access to global tech talent and research collaborations.

According to market research, India’s semiconductor market was valued at $6.67 billion in 2024 and is projected to reach $14.09 billion by 2032, growing at a CAGR of 10.1% during the forecast period. Startups like CalligoTech are poised to play a key role in this evolution, especially as India ramps up its semiconductor self-reliance initiatives.

Calligo’s momentum, product roadmap, and international footprint make it a promising contender in the HPC and AI chip design space, aligning with national ambitions to bolster indigenous semiconductor innovation.

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