Sujeet Kumar
CEO, Co-Founder @ Ionblox
Fremont, United States
Sujeet Kumar is a seed investor at Ionblox 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.
- Total investments:
- 3
- Last investment:
- Lead investor:
- 0%
Last updated:
For AI agents: llms.txt
Industries Sujeet Kumar invests in
Stages Sujeet Kumar invests in
Countries Sujeet Kumar invests in
Round sizes
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Round size
- Seed
- $700k–$1M
Investment Focus
Industry
- iOS 1 (33%)
- EdTech 1 (33%)
- Rental 1 (33%)
- Android 1 (33%)
- Software 1 (33%)
Stage
- Seed 2 (67%)
- Series C 1 (33%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
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 |
Co-Investors
About Ionblox
Zenlabs has developed proprietary silicon-based formulations that offer higher specific capacity, longer cycle life, and lower cost. Zenlabs' anodes are unique in their high loading level and high active silicon content. In addition, Zenlabs has solved the common problems with silicon based anodes such as poor cycling and swelling. Zenlabscombines these high capacity anodes with high capacity cathode materials in large format pouch cells to achieve energy densities that are much higher than what is commercially available.
Ionblox Contacts
| Name | Phone | Socials | |
|---|---|---|---|
|
Sujeet Kumar
CEO, Co-Founder
|
|||
Herman Lopez
Co-founder & CTO
|
|||
Michael Sinkula
Co-Founder & Chief Business Officer
|
|||
Access 48,091 investors
822 industries, 177 countries. Updated daily. Emails and phones included.
Browse database — It's Free!
Find investors for your startup
Search 48,091 investors by industry and country. Emails and phones included.
Similar Investors
Similar industry
Featured in Investor Lists
Recommended lists
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.
How do I contact Sujeet Kumar?
Public channels for Sujeet Kumar include LinkedIn. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
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 Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
Contact your first 100 investors today
Find who invests in your industry, stage, and country. Download investor list with emails in 5 minutes.
Find investors — It's Free!
Continue with Google
Continue with LinkedIn
