Tonbo
Information Technology · Databases & DBMS
$2.9Mlatest round · Venture round · Mar 2025 · 19 mo ago
1backers · Peak XV Partners
10+team · employees, estimated range
2024founded
Overview
Tonbo is an open-source, embedded database library for serverless, data-intensive applications. Runs in-process. No separate database service.
Funding and backers
Total raised
$2.9M
1 round on record
Latest round
$2.9M
Venture round · Mar 2025 · 19 mo ago
Team
11-50
employees, estimated range
Backers
1
Peak XV Partners
The money's age
Due for its next round
19 months since the last round · not hiring
Momentum
15/100
rising traction
Last sign of life
1 mo ago
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Mar 28, 2025
Raised a round Venture round $2.9M · SEC Form D
Oct 30, 2024
On the Hacker News front page Async Rust is not safe with io_uring · 212 points
Aug 15, 2024
Launched on Hacker News Show HN: Tonbo - Embedded DB for structured data storage
2024
Founded
Tractionpublic signals, read monthly
Funding rounds
| Round | Date | Amount | Investors | Source |
|---|---|---|---|---|
| Venture round | Mar 2025 | $2.9M | — | SEC Form D |
Registers and programsofficial lists and records that name the company
| Legal entity | Tonbo IO Inc. | SEC Form D |
Founders and leadersfrom filings, registers and the company's site
Zixing GuoExecutive Officer, DirectorSEC Form D
Backed byfrom the funds' portfolios and accelerator catalogs
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Visa sponsorship
1
H-1B filings in 12 months
$128k
Median offered salary
0
Open roles in United States
Who they sponsor
Software developers
1
In the register as Tonbo IO Inc., Bellevue, WA
Other sponsors in the same field
Datavail 
Ubicloud
Oracle 
Snowflake
Alert me
US Department of Labor · latest filing Nov 4, 2025 · Visa details by country
Financials
Total raised
$2.9M
Latest round
Venture - Series Unknown
Funding rounds
1
Funding rounds
| Round | Announced | Amount | |
|---|---|---|---|
| Venture - Series Unknown | 2025 | $2.9M | Details |
People
Zixing Guo
Executive Officer, Director
Names and roles come from public filings, company registers and the company's own site. Is this you? Correct or remove · How we handle this data
Connections
List
Graph
Found in company registers, site code, DNS and hiring. Each connection shows how sure we are and the evidence, with its source and date.
Shared investors
Peak XV PartnersVia a fund
Click a company to open it. Dashed lines are likely connections. The second step of the network is part of the Pro plan.
Owner
Same company
Same group
Likely
News
Exclusive: Tonbo Imaging To File DRHP By August For INR 1,000 Cr IPO
Defence tech startup Tonbo Imaging has appointed IIFL Securities and JM Financial as the book running lead managers for its IPO
Read more
Report
Introducing Tonbo
Tonbo is an open source embedded database library for building serverless, data intensive applications.
Read more
Report
Tonbo! Season 1 Streaming: Watch & Stream Online via Amazon Prime Video
Tonbo! Season 1 is a coming-of-age sports anime about Tonbo, a young girl with a natural gift for golf. The series is about her meeting a professional golf player who befriends her and helps her becom...
Read more
Report
Show more news
Offices
Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
Wilmington
United States
HQ
10-50 est. staff