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Deeptech startup Sthyr Energy raises $1 million in seed funding from Speciale Invest and Antares Ventures to advance energy storage technology.

PRIVATEJun 25, 2025•about 1 year ago

Amount Raised

$1 Million

Round Type

Seed

ChennaiEnergyRenewable Energy

Investors

Antares VenturesSpeciale Invest

Description

Sthyr Energy has secured $1 million in seed funding led by Speciale Invest, with participation from Antares Ventures. The company is developing Zinc-Air battery systems aimed at long-duration and seasonal energy storage. These innovative systems utilize non-flammable, water-based electrolytes for increased safety. The funding will support R&D and help scale up the product for diverse applications.

Company Information

Company

Sthyr Energy

Location

Chennai, Tamil Nadu, India

About

Sthyr Energy is a deeptech startup developing energy storage systems, particularly focusing on mechanically rechargeable Zinc-Air battery systems designed for long-duration and seasonal storage. Founded by researchers from IIT Madras, the company aims to enhance safety with non-flammable, water-based electrolytes and enables modular deployments for various applications. Their technology is poised to compete with lithium-ion batteries by delivering a levelised cost of energy suitable for extensive energy storage needs. Sthyr's innovative solutions are especially relevant in the context of increasing renewable energy penetration in India.

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Sthyr Energy raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.

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Fundz is a real-time business intelligence platform powered by agentic AI that proactively delivers personalized daily signals, including funding rounds, executive changes, M&A activity, 13F institutional filings, SEC 8-K events, investor activity, and website modifications, based on each user's watchlist and ICP. A trusted data source at firms such as BlackRock, Oracle, Kleiner Perkins, LinkedIn, HubSpot, and Cloudflare, Fundz democratizes the institutional-grade intelligence that previously required a PitchBook or Bloomberg terminal. Features include FundzWatch™ for automated website change detection, Daily Briefing for AI-powered daily briefings, and unified cross-signal alerts across 285,000+ organizations. Developers and data teams can access these signals programmatically via the Fundz Funding Data API, with transparent published pricing.