General Info
Brian Balfour is a tech entrepreneur, investor, and advisor. He has a strong focus on product, engineering, and marketing, scaling users from zero to millions of daily active users. Brian Balfour’s investment thesis revolves around the ‘Four Fits For $100M+ Growth,’ emphasizing product market fit, product channel fit, channel model fit, and model market fit for company growth. He has been part of building, advising, or investing in 40+ tech companies, with experiences at Reforge, HubSpot, Trinity Ventures, Boundless Learning, and Viximo. Brian Balfour’s geographical preference is not explicitly mentioned, but his investment check sizes range across various rounds including seed rounds. His partnership and collaboration style involves strategic growth loops and a guide to growing via partnerships, focusing on business evaluation, integration, and post-implementation management.
Location: Cambridge, MA
Country: United States of America
Industries:
Investment Regions: EU, NA
Investment Stages: pre-seed, seed
Website: brianbalfour.com
angel-individual
EU, NA
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🤖 AI Activity Report
Status: very-active
AI Reasoning: Found multiple public references showing Brian Balfour is an active angel/advisor to startups including Loom and Drift; Loom raised funding and had activity in 2024-2025 with Brian listed as investor/advisor. The most recent investment-related activity found is within the last 6 months, indicating very recent involvement (under 6 months). The startup mentioned: Loom.
Angel activity thresholds:
Low Activity – Only known angel investments more than 12 months ago.
Active – Known angel investments between the last 12 and 6 months.
Very Active – Known angel investments in the last 6 months.
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