# Sujeet Kumar

> Sujeet Kumar is a seed investor at Greatbatch (Fremont) backing iOS and EdTech. See 3 investments, check sizes, portfolio. Updated Aug 2026.

- Type: Angel Investor
- Fund: [Greatbatch](https://shizune.co/investors/profile/greatbatch-inc)
- Location: Fremont, United States
- Total investments: 3
- Last investment: Jan 2019
- Lead investor: 0%
- Last updated: Aug 2026
- LinkedIn: https://www.linkedin.com/in/sujeet-kumar-3821a41/

Sujeet Kumar is a seed investor at Greatbatch in Fremont focused on iOS and EdTech. Dr. Sujeet Kumar is the founder and CEO of Zenlabs Energy, a company developing high-energy fast-charging lithium-ion batteries for Electric and Aerial Vehicles. Before Zenlabs, Dr. Kumar served as CTO of Envia Systems where he developed high-capacity manganese-based cathode and won several DoE awards. Dr. Kumar worked as a senior scientist forGreatbatch, leading the development of cathode materials for implantable medical batteries. Dr. Kumar started his career at Nanogram Corp as its first employee where he led several energy storage projects. Dr. Kumar has won the R & D 100 award for developing high energy lithium-ion batteries and is the inventor of over 60 patents. Dr. Kumar has a Ph.D. in Materials Science from the University of Rochester and a B.Tech from IIT, Varanasi.

## Round sizes

| Stage | Round size |
| --- | --- |
| Seed | $700k–$1M |

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| iOS | 1 | 33% |
| EdTech | 1 | 33% |
| Rental | 1 | 33% |
| Android | 1 | 33% |
| Software | 1 | 33% |

12 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Seed | 2 | 67% |
| Series C | 1 | 33% |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Manch | We created Manch to provide a platform for 600 million Indian language speaking users who enjoy using internet and feel comfortable to discuss local updates in their language. Starting with awareness about social inequality, political agendas, government benefits to local opportunities, we have a long way to go. Manch-https://play.google.com/store/apps/details?id=com.app.manch | $700K | Seed | Jan 04, 2019 |  |
| Unacademy | Unacademy is a learning platform that provides content for major competitive examinations as well as offers short lectures in the form of videos on different subjects which can be accessed for free. It allows aspiring students to better prepare for their competitive examinations and promote self-learning.Unacademy was originally created in 2010via YouTube channel and was officially launched in 2015. The company is based in Bangalore, India. | $1M | Seed | Aug 24, 2016 |  |
| NestAway | Nestaway is a Bangalore-based home rental network attempting to provide better rental solutions via design and technology.They help their customers to find, book, and move-in to a rental home of choice across Indian cities - all from within an application. Moreover, they help them move-in, ask for services from tap leakage to door lock broken,rental payment, and finally move-out - again all within an app.NestAway was founded in January 2015. | $30M | Series C | Apr 15, 2016 |  |

3 of 3 investments shown.

## Co-investors
- [Dalton Venture](https://shizune.co/investors/profile/dalton-venture) — VC Fund, 1 deal together
- [Stellaris Venture Partners](https://shizune.co/investors/profile/stellaris-venture-partners) — VC Fund, 1 deal together
- [Tracxn](https://shizune.co/investors/profile/tracxn) — VC Fund, 1 deal together
- [WaterBridge Ventures](https://shizune.co/investors/profile/waterbridge-ventures) — VC Fund, 1 deal together

## About Greatbatch

VC Fund · Frisco, United States

Greatbatch, Inc. (Greatbatch) is developer and manufacturer of components for implantable medical devices (IMDs) and Electrochem batteries. The Company operates in two segments: Greatbatch Medical and Electrochem Solutions (Electrochem). The Company’s customers include large multi-national original equipment manufacturers (OEMs). The GreatbatchMedical segment designs and manufactures medical devices and components primarily for the cardiac rhythm management (CRM), neuromodulation, vascular access and orthopaedic markets. In addition, Greatbatch Medical offers assembly and design engineering services for products that incorporate Greatbatch Medical components. Electrochem segment provides technology solutions. In August 2014, the Company acquired CCC Medical Devices (CCC), globally-respected active implantable medical device (AIMD) systems developer and manufacturer.

3 contacts available at Greatbatch.

| Name | Title | Profile |
| --- | --- | --- |
| Michael Dinkins | EVP & CFO | https://shizune.co/investors/profile/michael-dinkins |
| Sujeet Kumar | Senior Scientist | https://shizune.co/investors/profile/sujeet-kumar |
| Thomas J. Hook | President and CEO | https://shizune.co/investors/profile/thomas-j-hook |

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## FAQ

### What does Sujeet Kumar invest in?

Sujeet Kumar invests primarily in iOS, EdTech and Rental startups, most often at Seed and Series C stage. Most of the 3 investments tracked by Shizune back companies in India. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### What is Sujeet Kumar's check size?

Sujeet Kumar typically joins rounds of $700k–$1M at Seed. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Sujeet Kumar participates in.

### When did Sujeet Kumar last invest?

The most recent investment recorded for Sujeet Kumar closed in Jan 2019. Shizune tracks 3 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

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