Managing Partner @bek_vc. Investing in tech in Emerging Europe since 2006

United States
Joined October 2008
Cem Sertoglu retweeted
The case for generalist VCs...
In the AI-doomer argument, broad multidisciplinary thinkers like @sapinker have suggested the "kill-us-all" scenarios are preposterous. The AI researchers, that are most negatively outspoken, say that their voice should count more, because they are closest to AI and know what it can do. Everyone watching this debate should read about Tetlock's work (see below). The generalists (foxes) and much better predictors than the specialists (hedgehogs) who are to close to the problem to accurately predict broader implications. So "no points" for the "we know more" argument. In fact, it works against you.
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Cem Sertoglu retweeted
Introducing Upsy upsy.ai/ Your own cloud computer, shared with your AI assistants. Like a Mac mini, but in the cloud. Connect Gmail, Calendar, Slack and your browser once. Muse, Grokbot and any other assistant can use them. You decide what each one can access. An assistant starts reading through your whole inbox? You get an alert and turn it off in one click. Sessions and keys live in your Google Drive, not on our servers.
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Cem Sertoglu retweeted
Cancel USA vs Turkey. Cancel Germany vs Ecuador. Lock Turkey and Ecuador into a stadium and don't let either team out until one of them scores a goal.
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Cem Sertoglu retweeted
We're hiring to expand our marketing team for @TalkToAshAI. This is your chance to work alongside me (I co-founded @Casper, where we had some of the best marketing in the world) and our head of marketing (ex spotify/airbnb) to figure out how to scale AI to support our mental health. We're looking for talented generalists. You're a builder, you create videos or take ideas from 0 to 1 same day. This is in person, in nyc, a chance to build marketing that changes people's lives at a company that is quite literally changing people's lives. We value speed and iteration cycles over pretty much everything - there is no playbook here, so we have to discover it together. If this is you, drop me a dm or post here with the most interesting marketing you've done personally (portfolio, link whatever). If you know someone incredible and share them, happy to offer a generous referral bonus (maybe an @infinitemachine scooter?) please RT for reach!
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Cem Sertoglu retweeted
Excited to announce our follow-on investment in @viktor_com as they raise $75m Series A led by @Accel. We first backed @frydwia and @peter_albert_ at pre-seed. $15m annualized revenue run rate in 10 weeks. Congratulations to the whole team. Read more: fortune.com/2026/05/19/vikto…
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Cem Sertoglu retweeted
One of our CEOs called VC a market of "violent capital concentration", and is, instead, opting to be profitable, up 3x YoY. He ended his update email: "It is easier to find men who will volunteer to die, than to find those who are willing to endure pain with patience." (Caesar)
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Cem Sertoglu retweeted
Today, we’re announcing Viktor’s $75M Series A, led by @Accel . @viktor_com was supposed to be a small experiment. It became the AI coworker 10x'ing real businesses. $15M in annualized revenue run rate. In 10 weeks. – Small companies saving millions of dollars – Sourcing hundreds of thousands in new revenue in their first 30 days – Whole teams getting half their week back – Companies running 40% leaner without cutting output Viktor is not another AI tool. It’s the first true AI employee. The vision that has been with us since 2023 when we started the company has finally been shipped. Back then, it was just the two of us, with a very small but dedicated team, iterating for years. Failing multiple times. Showing products that users didn't even want to test! But we never gave up. Our decisions were often wrong. Certainly more often than not! We kept trying. Now we’ve shipped something people love. Worth every sleepless night. Every sacrifice. The best employees don’t need to be told what to do. Neither does Viktor. Grateful to @Accel, our team, our earliest users, and everyone who believed this category could be bigger than chat.
Readers added context they thought people might want to know
Viktor operates a creator program paying users up to $2000 per promotional post on X that includes real product screenshots, with no requirement to disclose the payment. getviktor.com/creators
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Cem Sertoglu retweeted
$75M Series A for @viktor_com. $15M annualized revenue run rate in 10 weeks. Global-winner velocity. Europe keeps proving it can produce companies built for the world stage. Huge congrats to @frydwia, @peter_albert_ and the entire Viktor team 🚀 fortune.com/2026/05/19/vikto…
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Cem Sertoglu retweeted
Grand’s $70m round is a big signal. Two years from founding. Thinking, building and competing globally. More proof that Europe has the talent and ambition to produce global winners. @bek_vc @balderton @latonvc @Bloomberg bloomberg.com/news/articles/…
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Cem Sertoglu retweeted
Replying to @eladgil
BS. Attention was born in Montréal PyTorch in NYC. AlphaGo in London AlphaFold in London ESMFold in NYC Llama 1 in Paris. Llama 2 in Paris+NYC+SV DeepSeek in Hangzhou Plus: DINO in Paris JEPA in Montréal+Paris+NYC SV is 3 mos ahead on topics SV is singularly obsessed with.
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Cem Sertoglu retweeted
.@vonderleyen: Türkiye is: - a core #NATO ally, - a key migration partner, - an energy corridor, - a major defence actor on Europe’s flank, - and a serious regional power. Europe doesn’t get stronger by applying double standards or simplifying reality.
Bloomberg
@businessApr 21
The European Union sought to ease tensions with Turkey after European Commission President Ursula von der Leyen named the country alongside Russia and China, creating the impression that the NATO partner was seen as a potential threat. bloomberg.com/news/articles/…
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Cem Sertoglu retweeted
Nate Silver
@NateSilver538Apr 5
These are the Twitter/X accounts with the most engagement so far in 2026. I suppose I had some intuition for how bad it was, but jeez, this is what you get when the ecosystem is broken.
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A crazy image
Despite the proliferation of startup pundits over the last 25 years, no one knows how to make startups more successful. The New Pundits have sold millions of books, and their entrepreneurship “science” is taught in universities and accelerators all over the world. But none of it has made a difference. Startups are no more likely to survive today than they were in 1995. By some measures, they are even less likely to work. In his latest essay, legendary venture investor @ganeumann presents the data, diagnoses the problem, and proposes something that might actually work. It involves Robert Boyle, Peter Thiel, Paul Feyerabend, and Lewis Carroll’s Through the Looking-Glass. colossus.com/article/we-have…
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Cem Sertoglu retweeted
For a minute, forget that venture capital exists. Forget Benchmark, Sequoia, and Y Combinator. Forget Kalanick, Faulkner and Chesky. Gone. No legacy. You're trying to assemble a private market product that appeals to large institutional LP allocators, built on the promise of technology companies. Their preferences are: 1) Strong interim performance, so they can hit internal benchmarks, get bonus compensation and advance their career. 2) Protection against the visible impact of systemic drawdowns, protecting relative performance metrics even in a market correction. 3) Bragging rights, from involvement in strong brands with large media platforms and passthrough exposure to lots of hot logos. 4) A high level of service, with a fully staffed IR team to handle everything and organise spectacular AGMs with all kinds of perks. Essentially, you need to offer a scalable basket of assets that will reliably rise in value, attached to a marketing machine, with a valuation policy that aligns your marks with other managers in your network. The ideal asset for this strategy is the most obvious; the 25 year old Stanford graduate who did 2 years on Meta's product team and is now launching some B2B AI widget — and they've just gone viral with their launch video. The cost of capital for a founder that ticks so many boxes is rock bottom; coordination frictions at a minimum. They're likely to keep raising larger rounds and generating markups on sheer momentum, regardless of any idiosyncratic quality. It's also such an easy profile to identify that you can employ an army of associates and scouts to track them down, assuming they don't respond directly to your heavily advertised "call for startups". Essentially, what you have created is a synthetic "venture" asset, built on the elasticity of software companies, that prints growth metrics for allocators. It can scale as much as required, absorbing as much capital as may be shoveled into it, growing at a rate correlated with how close to the consensus you are. Of course, all of these things are correlated with worse ultimate cash returns, as they reflect attributes that are predictive of worse returns in a market with zero alpha. Surprisingly, that's ok. It's not the point. All you have to do is push exits out to 12+ years, giving you space to raise 3-4 subsequent funds and your allocator friends time to move on to a better role. Along the way you'll be able to extract just enough liquidity to keep things moving. Secondaries in a hot company, a continuation fund or intra-portfolio acquisition, and the occasional opportunistic exit to talk about on podcasts. You wont be breaking DPI records or driving much real technological progress, but the fee income will be lovely and your allocator friends will be totally satisfied with the product you have created.
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Cem Sertoglu retweeted
Excited to launch Viktor AI COWORKER THAT LIVES IN SLACK One teammate that handles marketing audits, ad management, lead research, daily reports, and deployed apps. Across every channel. At once. → 3,000+ tool integrations. If one's missing, it builds its own → Persistent memory. Learns your company, notices patterns, follows up on its own Today it's yours. P.S. Early access for now. Slack app review moves at Salesforce speed. Viktor doesn't.
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Cem Sertoglu retweeted
Replying to @elonmusk
Update:
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In my new book, The Science of Second Chances, I talk about the strong research evidence that access to SNAP benefits reduces recidivism for adults coming out of prison, because it helps them make ends meet without resorting to crime. I also talk about the even stronger evidence that access to SNAP benefits for young kids reduces their future criminal justice involvement, because good nutrition is important for brain development. (One hypothesis for why nutrition is so important is that it helps protect the brain against exposure to common toxins like lead. Because lead and calcium both bind to the same receptors in the brain, consuming more calcium in early childhood can crowd out this harmful toxin and both protect from and mitigate the detrimental effects of lead exposure. That exposure would otherwise result in more impulsive and aggressive behavior in the teen and adult years.) Many are talking about the current interruption in SNAP benefits as a moral issue. But it is also a public safety issue. If we do not get families the food they need, we will pay for it for years to come, in the form of higher crime rates. My team at @Arnold_Ventures has been working to repeal state and federal bans on SNAP benefits for people with criminal records, which reduce food access even in "normal" times. Such bans are counterproductive. For more on this, please consider pre-ordering my book! (It comes out in February.) If you're a policymaker who would like more info on this evidence, please get in touch.
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