Josef Mueller
Angel investor in Boston
Boston, Massachusetts
Josef Mueller, Angel investor in Boston is an active investor based in Boston, Massachusetts. This profile covers what Josef Mueller backs, at which stage, and how founders can reach out in 2026.
- Investor type
- Angel
- Stages
- Pre SeedSeed
- Invests in
- Consumer & RetailE-commerce & D2CClimate & EnergyPropTech & Real EstateFoodTech & AgricultureFood & Beverage
- Location
- Boston, Massachusetts
- Typical check
- $150K
- Past investments
- 16
Notable investments
BeviEvolution Fresh
Sampler
WearAwaySurfside Coffee CompanyEnvision SolarDECK of DICE GamingSkip HopIdeaPaint
GROVESalt Lake Brewing CompanyHow to reach Josef Mueller
Angels and operators like Josef Mueller 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.
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About this profile
This profile is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise. How this data is built.
Cite this page
Round Funded. "Josef Mueller." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/josef-mueller
Frequently Asked Questions
What does Josef Mueller invest in?
Josef Mueller invests in Consumer & Retail, E-commerce & D2C, Climate & Energy and PropTech & Real Estate, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does Josef Mueller invest at?
Josef Mueller typically invests at Pre Seed and Seed. Lead with traction that fits the stage when you reach out.
What is Josef Mueller's typical check size?
Josef Mueller typically writes checks around $150K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.