
Happy Thursday.
In today’s issue:
Angel Deals of the Week | 206 Deals, 109 Networks
First time featured this week: Finnish Business Angels Network
The best nugget from my conversation with Mitra Miller, President of the Houston Angel Network and Managing Partner of Mill River Capital
🔥 Angel Deals of the Week
Angel funding rounds announced in recent weeks, compiled from public sources or via direct announcement. These deals represent the elite few that survived an angel network’s vetting process. Note: I have not personally analyzed these companies and am sharing for informational purposes only.
📊 Angel Network Investment Tracker: 206 Deals, 109 Networks.

Andiron AI | AI agents for ecommerce marketing optimization
Participating Group: Angel Star Ventures
Andiron AI is developing an AI-powered marketing command center for ecommerce brands that aggregates data across advertising, sales, and other channels to surface growth opportunities and execute actions automatically. The platform, called Andi, identifies underperforming spend and, according to the company, delivers ~27% revenue lift and 3x faster campaign execution. Angel Star Ventures, LLC recently announced an investment in the company.
Cyrus Roepers-Chamlou | Arlington, VA | June 2026 | Source

Bounce Imaging | Throwable 360-degree tactical cameras
Participating Group: Harvard Business School Alumni Angels of Greater New York
Bounce Imaging makes throwable and mountable 360-degree camera systems that give first responders and military operators real-time visual awareness inside dangerous or confined spaces before entering. Founded after the 2010 Haiti earthquake, the company says its systems are used by more than 450 law enforcement agencies, plus the FBI, U.S. Marshals, and Department of Defense teams. HBS Alumni Angels of Greater New York recently announced a follow-on investment in the company.
Francisco Aguilar | Cheektowaga, NY | May 2026 | Source

Granarium Technologies | Renewable supercapacitors for grid storage
Participating Groups: Estonian Business Angels Network, Latvian Business Angels Network, and Finnish Business Angels Network
Granarium Technologies is developing supercapacitors (fast-charge energy storage devices) made from 100% renewable materials, including nanocellulose, biocarbon, and water, for grid-scale power stabilization. A VTT Technical Research Centre spinout with multiple granted patents, the company says it has letters of intent with energy operators in Finland and Lithuania. Granarium secured up to $232,800 USD (€200,000) from the Estonian, Latvian, and Finnish Business Angels Networks joint syndicate at Latitude59 2026, part of a $1.16 million USD (€1 million) seed round led by BSV Ventures.
Paula Viinamäki | ~$230K Investment | Helsinki, Finland | May 2026 | Source
📣 Have an Angel Deal to Announce?
🥇 The Nugget: My Top Takeaway from a Conversation with Mitra Miller
Study up on the cap table. 📖
“Who is in this deal?”
It’s a fascinating question, and makes looking over cap tables quite the curiosity-satisfying experience. But Mitra highlighted how powerful the exercise is as a form of diligence, and suggested a second, more specifc question: “Do these people know the industry?”
If a founder has filled their entire round with investors who have no domain expertise and add little/no strategic value to the business, that's at least a yellow flag.
From Mitra: "If I see them taking a bunch of ‘dumb money’ and filling out their whole round that way, and they haven't brought in somebody who actually understands their industry, that's actually a big concern for me."
Takeaway: Next time you’re considering an investment, pull up the cap table and ask - “Do any of these names have experience in this space?” And if the first-glance answer is no, consider pressing the founder to better understand what each name brings to the table besides their capital.
Want more? Check out my full conversation with Mitra👇
Listen now on Apple Podcasts, Spotify, YouTube, and more.
🚧 Operations isn't Slowing you Down - Until it is.
There's a version of every angel group that deploys more capital, attracts better deal flow, and retains more members year over year. Most investor groups don't get there because the operational burden outpaces the 1-2 part-time people trying to hold it all together with paperclips and duct tape.
Put the duct tape down. Let’s talk about how to take your group to the next level.
Until Next Week 👋
Thanks for reading - have a great week.
-Andrew
If you’re finding this newsletter valuable, share it with a friend, and consider subscribing if you haven’t already. You can also find me on LinkedIn and X.
Advertise with The Diligent Observer.
