Top Tech Startups in Kolkata, India in 2026

Pointo, India's leading full-stack battery ecosystem provider, revolutionising the energy sector with our end-to-end solutions. From manufacturing and distribution to second-life management, we're at the forefront of the smart lithium-ion battery revolution. With a presence in 54 locations across West Bengal and new branches in Bihar, Lucknow, and Jaipur, we're rapidly expanding and innovating in the next-generation fuel industry. Our vision is clear: to dominate the lithium-ion battery market in both first and second-life applications, driving advancements in mobility, home inverters, and grid power supply. As the largest battery leasing network and procurement company in India, we're growing at an impressive 30% month-over-month. At Pointo, we're committed to pushing the boundaries of deep tech to shape the future of energy. Join us and be part of a dynamic team that's transforming the industry and leading the charge towards a more sustainable future.

hCalls is a real-time AI interview communication copilot designed to help modern professionals interview with absolute confidence. By capturing live audio during video calls on Zoom, Google Meet, and Microsoft Teams, hCalls instantly transcribes interviewer questions, maps them to the candidate's unique resume, and streams tailored, structured guidance in under two seconds. Whether navigating automated AI screening rounds (like HireVue or Karat) or live human interviews, hCalls ensures candidates never blank out, ramble, or forget their key achievements under pressure.

Daako is engineering the integrated tech and operational infrastructure needed to solve India’s critical, real-world waste management crisis. We build data-driven software and smart logistics platforms to streamline fragmented waste supply chains, optimize real-time routing, and drive industrial-scale circularity. Our core mission is ambitious yet essential: redirecting waste streams at the source to bring landfill contributions down to almost zero. By merging intelligent software with gritty, ground-level execution, Daako is building the digital backbone to secure India's environmental future and safeguard our ecosystems for the next generation. Join us and build tech that matters.