Funded startups in Portland, Maine
3 startups in Portland, Maine have filed a Form D with the SEC and together report $18.3M raised. Defendify has the largest latest round, at $6.5M. Amounts are as reported on the filing, not estimates.
Updated Oct 2, 2026
- Companies
- 3
- Total raised
- $18.3M
- Filings
- 6
- Median round
- $2.7M
Most recent filings
3MedRhythmsHealthcareRhythm-based digital therapy for walking impairments
Oct 2, 2026
$250K
DefendifyCybersecurityAll-in-one cybersecurity tools for businesses
Sep 29, 2026
$6.5M
HighByteInfrastructureEdge software that models plant-floor data for analytics
Jun 22, 2026
$4.7M
All 3 companies · most recent filing first