---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-25-023132"
form_type: "8-K"
ticker: "BLZE"
cik: "0001462056"
company_name: "Backblaze, Inc."
filed_at: "2025-05-07T23:59:59+00:00"
generated_at: "2026-05-22T07:36:31.551992+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Backblaze Q1 revenue up 15% YoY to $34.6M; raises FY 2025 adjusted EBITDA margin guidance to 17-19%

## Summary
- B2 Cloud Storage revenue grew 23% YoY to $18.0M; Computer Backup revenue up 8% to $16.6M.
- Net loss narrowed to $9.3M from $11.1M; adjusted EBITDA swung to $6.4M (18% of revenue) vs $1.9M (6%) last year.
- Signed its largest multi-million dollar, multi-year contractual commitment in Q1.
- Full-year 2025 revenue guidance raised to $144M-$146M; adjusted EBITDA margin outlook increased to 17%-19%.
- Responded to a false short-and-distort report; independent review found no wrongdoing.

## SEC filing metadata
- accession: 0001628280-25-023132
- form_type: 8-K
- ticker: BLZE
- cik: 0001462056
- company_name: Backblaze, Inc.
- filed_at: 2025-05-07T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1462056/000162828025023132/0001628280-25-023132-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1462056/000162828025023132/blze-20250507.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-25-023132
- JSON: https://secwatch.observer/filing/0001628280-25-023132.json
- Plain text: https://secwatch.observer/filing/0001628280-25-023132.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.