China · 
Who invested in oTMS?
oTMS's investors include Matrix Partners China, Purple, China Merchants Capital and Chen Weixing.
20172018
$25MSeries B$7.0MSeries DChina · Series D startup
Who invested in oTMS
2 rounds we have observed, with the 4 investors named in them. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
Funding summaryUpdated 26 Oct 2026
$32Mraised across 2 rounds since 2016, from 2 sources
$25MSeries B$7.0MSeries D
- Latest round
- Series D, $7.0MDec 2018
- Biggest round
- $25MSeries B · Sept 2016
- Investors
- 4
The funding story
Each circle is a round, placed by date and sized by amount. The line above is the running total.
- First round
- Series B, $25M Sept 2016
- Biggest round
- $25M Series B · Sept 2016
- Between rounds
- 2.3 years from the last two
The rounds
- Dec 2018
- Sept 2016
Who was in which round
The busiest backers across the latest rounds. A filled square is a round they joined; a dark one, a round they led.
Everyone who backed them
Matrix Partners ChinaVC firm1round
Chen Weixingno record of our own yet1round
Missing a round, or an investor who was in one? Tell us.
Quick answers about oTMS
How much has oTMS raised?
oTMS has raised $32M across 2 rounds since 2016.
When did oTMS last raise?
oTMS's most recent round was a Series D of $7.0M in Dec 2018.
What was oTMS's biggest round?
oTMS's largest round on record is $25M (Series B), in Sept 2016.
Who backed oTMS first?
oTMS's first round on record, in Sept 2016, was backed by Chen Weixing.
What stage is oTMS at?
oTMS's latest named round is a Series D, in Dec 2018.
Where is oTMS based?
oTMS is based in China.
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