Brett Rosenberg

Brett Rosenberg

Active Investor

Angel investor in Spain

Spain

Brett Rosenberg, Angel investor in Spain is an active investor based in Spain. This profile covers what Brett Rosenberg backs, at which stage, and how founders can reach out in 2026.

Investor type
Angel
Stages
Pre SeedSeed
Location
Spain
Typical check
$150K
Past investments
3

Notable investments

Rubicon Project (Acquired Chango - April 2015)Chango (Acquired by Rubicon Project - April 2015)EQ Works

How to reach Brett Rosenberg

Angels and operators like Brett Rosenberg reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded Accelerator.

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Frequently Asked Questions

Who is Brett Rosenberg?

Brett Rosenberg is an active investor, Angel investor in Spain. Round Funded tracks their focus and activity alongside thousands of investors.

What stage does Brett Rosenberg invest at?

Brett Rosenberg typically invests at Pre Seed and Seed. Lead with traction that fits the stage when you reach out.

What is Brett Rosenberg's typical check size?

Brett Rosenberg typically writes checks around $150K. Use it as a signal for whether your raise fits their stage.

How do I contact Brett Rosenberg?

Unlock Brett Rosenberg's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.

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