Bangaly Kaba

Thrilled to announce that Together Fund is investing in Sentra, alongside a16z speedrun! You track results in Jira. Decisions in Notion. Conversations in Slack. But the reasoning, the debates, trade-offs, and context behind why you chose A over B, disappears into what we call "Dark Matter." A decision made in March looks insane by July because no one remembers the constraints that made it smart. I lived this firsthand at Twitter scaling from 800 to 8,000 employees, and at Google while launching AI Overviews to billions at planet scale. The problem isn't process. Process is compensation for something deeper: organizational amnesia. An organization’s "Systems of Record" doesn’t solve this, they encode it. They store what happened, never why. That's why we are investing in Sentra. Sentra is the always-on collective memory that eliminates organizational amnesia by maintaining accurate context for all members and agents, functioning as an operational nervous system. It connects to every channel where work happens, meetings, Slack, email, code commits, docs, calendars, and treats them not as artifacts to search, but as living signals to synthesize. The fleeting and the permanent, unified into a memory that understands. The founding team is built for this: - Jae Gwan Park (CEO): Product-first founder, memory systems research at UofT and MIT - Ashwin Gopinath (CSO): Former MIT professor, created "Reflexion" (NeurIPS 2023), agents that learn from mistakes, 2x founder - Andrey Starenky (CTO): Early Vapi engineer, ex-IBM, built to process enterprise-scale data firehose Together is an operator-led fund. We invest in problems we've lived. This is one of them. Many congrats Jae, Ashwin and Andrey, we are so excited to partner with you! Read the full thesis: https://lnkd.in/gixj9cE4 Book a demo: https://www.sentra.app/ #OrganizationalMemory #AI #Sentra #TogetherFund #a16z #ContextGraphs

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Last year’s Series A was a milestone, but it wasn’t a stopping point. As proof that we’ve only been moving faster than before, I’m excited to share that Numeric raised a $51M Series B, led by investors like IVP, Menlo Ventures, Founders Fund, and more. Over the past year, we've launched AI-powered flux analysis that accountants actually trust, built out cash management tooling, and worked with some of the best finance teams in the industry. This raise funds what’s next: more AI agent capabilities, building a strong finance data layer, and expanding the team. If you're interested in working on hard problems in finance infrastructure, let's talk. More on the round: https://lnkd.in/gvkWqiDx

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Dayna Grayson is a leading VC who has “sat in every chair” at a young age. She founded Construct Capital with Rachel Holt, an early leader at Uber. Together, they are tackling the digitization of industry. Dayna will discuss macro trends, what it takes to be a founder, and the potential for AI. She is one of the few who have successfully blended a career of operations and investing.  Check out our discussion at: https://lnkd.in/eYBUGjbW #leadershipdevelopment

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Building a startup is hard. It is especially hard in a country like Nigeria, where the ecosystem is yet to mature, and there are still many challenges to navigate. It is confusing, lonely, and full of uncertain decisions. Founders, especially early-stage founders, need as much support as they can get. Not “inspire to perspire” posts, but practical support on hiring, operations, funding, customer research, and navigating the regulatory landscape. Too many founders are surrounded by noise, surface-level advice, and generic content that does not reflect their current realities. What they need is a community that understands exactly what they are going through and can offer context that is immediately useful. Sierra Collective exists to be that community. A space where founders learn from one another’s live experiences and shorten the painful trial and error that usually defines the early stages of building. At Sierra, we believe that the most valuable support comes from those who are active in the trenches, navigating the same obstacles. If you are an early-stage founder, you should join the Sierra Collective. You do not have to figure everything out alone. As the African proverb says, “If you want to go fast, go alone. If you want to go far, go together.” Join Sierra: https://lnkd.in/d-Nzmtkq

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Talking to users and thoughtfully integrating their needs and wants was woven through everything we did at IDEO—threaded through every prototype and product decision. Reading my colleagues Joanne and Leo's latest work brought that to mind. They describe a future where research runs continuously, with AI agents recruiting participants and instantly surfacing insights. Synthetic personas, carefully trained on consumer signals, mirror human behavior closely enough to extend live studies and compress timelines from weeks to hours. Today user research mostly runs in fits and starts, prohibitively expensive and locked away in dedicated project cycles when it could be a constant companion, seamlessly integrated into the product development process. Joanne and Leo lay out the full vision here: https://lnkd.in/gEUBSG_J

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Don't Build a Better Wheat Farm" - Why Defensibility Stakes Are Higher in Deep Tech Just published a new piece on my "Ignore the Confusion" blog, building on thoughtful insights from Eric Ver Ploeg at Tunitas Ventures about startup defensibility. Eric's core thesis: Too many startups pitch like wheat farmers - "huge TAM, slow incumbents, growing market, domain expertise" - but fail to think through long-term defensibility until it's too late. From a deep tech perspective, the stakes are even higher: ** Unlike software, deep tech founders must commit to defensibility strategies from day one - their funding depends on it ** Patent vs. trade secret decisions are often difficult to reverse and shape your entire competitive strategy ** Even "picks and shovels" providers (the tools that make industries more efficient) become commodities without proper moats The key insight that resonates: Defensibility can't be retrofitted. Whether you're building software or deep tech, your moat must be architected into the business model from the start. Thanks to Eric Ver Ploeg for sharing these insights on startup strategy and letting me build on his framework from a deep tech lens. Read the full post: https://lnkd.in/dEj_iF-Q #DeepTech #StartupStrategy #Defensibility #VentureCapital #Innovation

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