United States · How much has Attobahn raised?
Attobahn has raised $28M across 1 round since 2026.
United States · Funded startup
Who invested in Attobahn
One round we have observed, with the 0 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.
Raised 8 months ago
Follow Attobahn and see its new rounds in your feed. Start following
Funding summaryUpdated 15 Nov 2026
$28Mraised across 1 round since 2026, from 1 source
- Latest round
- Round, $28MMar 2026
- Investors
- 0
The rounds
- Mar 2026Round$28M
No investor was named in the report.
Filed with the SEC (Form D); no report of this raise yetSEC filing: $28M sold, first sale Mar 2026
Funding filed with regulators
Attobahn filed 4 raises, $53M in all. Filings say how much was sold and to how many investors; they never name the investors.
- Mar 2026$28MSEC Form D
- Jan 2024$1.1MSEC Form D
- Jul 2020$24MSEC Form D
- Oct 2019$202KSEC Form D
Quick answers about Attobahn
When did Attobahn last raise?
Attobahn's most recent round, $28M, was in Mar 2026.
What was Attobahn's biggest round?
Its most recent round, $28M in Mar 2026, is also its largest on record.
Where is Attobahn based?
Attobahn is based in the United States.
Companies like Attobahn
In the same sector, and raised in the last eighteen months.
Find investors like these
Search every investor by what they have actually funded, then narrow to your stage and market. Free.