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ETHDenver 2027: A Founder’s Guide
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ETHDenver 2027: A Founder’s Guide

ETHDenver 2027 for founders: how the week works, side events worth your time, the hackathon, and how to plan Denver on a startup budget.

ETHDenver 2027 is expected to take over the National Western Center in Denver in late February 2027, and for startup founders it is one of the highest-density weeks of the year — a free hackathon, a week of side events, and every major web3 investor, protocol team, and builder in one city. If you are building in crypto, AI, or anything adjacency-adjacent, this guide covers what the week actually is, how the hackathon works, what it costs, and how to plan it on a startup budget.

ETHDenver is also the largest Ethereum community event in North America, and it is built around a hackathon rather than a sales floor. That means the value is not on the main stage — it is in the lines, the side events, and the 2 a.m. hacking sessions. Browse live Denver events week by week on the Denver city guide →, and track the broader circuit in our blockchain and web3 events guide.

What is ETHDenver 2027?

ETHDenver 2027 is the tenth-anniversary edition of the largest Ethereum community hackathon and conference in North America, expected to run in late February 2027 at the National Western Center in Denver. It is organized by SporkDAO and built around a hackathon (the BUIDLathon), a multi-day program of talks and workshops, and a full week of independently organized side events across the city. For founders, it is less a conference and more a week-long gathering of the entire web3 ecosystem in one place — a chance to ship a prototype, meet protocol teams, and pitch investors without paying a conference ticket.

Unlike traditional conferences, ETHDenver does not have a vendor floor or pay-to-play speaker slots. The main event is free to attend, the hackathon is the centerpiece, and the real deal flow happens at side events in breweries, coworking spaces, and hacker houses across Denver’s RiNo district. If you have never done a hackathon before, our startup weekend and hackathon guide covers the basics of forming a team and shipping something demo-able in a weekend.

When and where is ETHDenver 2027?

Secondary listings point to February 17–21, 2027 at the National Western Center, with the Camp BUIDL hackathon days running immediately before the main event — mirroring the 2026 edition, which ran February 18–21 with Camp BUIDL on February 15–17. ETHDenver has confirmed the 2027 edition is happening (its tenth anniversary) but has not officially locked dates on ethdenver.com yet. Treat late February 2027 as the planning window and confirm the exact dates on the official site before booking travel — every hotel in LoDo and RiNo will sell out once dates are announced.

Is ETHDenver free? How do tickets work?

Yes — general admission has historically been free via application through the ETHDenver ticket portal, and that model is expected to continue for 2027. Registration typically opens in mid-November of the year before. Hackers apply separately for the BUIDLathon as builders; speakers, mentors, and judges apply through the same portal. Tickets register only through ethdenver.com — ETHDenver has publicly warned of fake ticket sales and third-party sellers, so any site selling 2027 tickets for money is a scam. For everything else on the circuit, our discounted and free conference tickets guide covers which events founders can attend for free or cheap.

Founder tip: apply as a BUIDLer rather than registering as general admission if you are building. BUIDLers get the hackathon track, team formation support, mentor hours, and priority access to sponsor resources.

What does the hackathon give startups?

The BUIDLathon is the core of ETHDenver for founders. Over three to four days you can build a working prototype with on-site mentorship from protocol engineers, compete for sponsor prizes that often come with follow-on grant money, and pitch in front of investors who attend specifically looking for hackathon-stage teams. A hackathon demo is the cheapest technical validation you will ever run: you get a working product, a founding team (many ETHDenver teams formed at the event and went on to raise), and a demo that makes every future investor conversation easier. The pattern is the same as any hackathon — show up with a problem, not an idea; the teams that win start from an itch to scratch. If you have never pitched on a stage before, read the guide to approaching investors at events before you arrive.

How should a founder plan the week?

Plan the week in three layers: the hackathon (if you are building), the side events (where the real networking happens), and 1:1s you book in advance. The side event calendar is the real conference — hundreds of parties, demo nights, and pitch nights run by protocol foundations, VC funds, and community groups across Denver the same week. Our side events and afterparties guide has the playbook for choosing which ones are worth your time and which are noise.

  • Before the week: set a target — 3 warm conversations per day with a specific ask. Book coffee 1:1s in advance using the side event RSVP lists.
  • During: spend mornings in the hackathon or sessions, afternoons at side events, evenings at the events where your target investors are. The founder network-building guide covers how to keep this from being random.
  • After: follow up within 72 hours on every real connection. Use the non-salesy follow-up playbook so the week converts into a pipeline instead of a stack of dead badge scans.

What does a founder budget for ETHDenver look like?

The main event is free, so the real costs are travel, lodging, and food. A lean founder budget for the week: $250–450 round-trip airfare into DEN, $150–220/night for lodging if you split a RiNo Airbnb within walking distance of the National Western Center (book with free cancellation now, move it once dates are confirmed), and roughly $40–60/day for food — the venue has strong free options when you hack. All-in, expect roughly $400–450 plus flights for the week. Compare that to the $2,000–3,500 all-in cost of a major commercial conference, and ETHDenver is arguably the highest-value free week in tech — especially if you hack, since food and coffee inside the venue are provided for BUIDLers.

One practical note on travel and housing: prices spike as soon as dates are announced, and the cheapest lodging options near the venue go first. The conference travel playbook in our conference travel hacks guide covers flight timing and lodging strategies for exactly this kind of event.

Is ETHDenver worth it for non-crypto startups?

Yes — especially for AI infrastructure, developer tools, and B2B startups building on-chain adjacencies (payments, identity, data provenance, decentralized storage). Every major AI lab, protocol foundation, and crypto-native VC sends people to ETHDenver regardless of whether they are “crypto” — the week functions as a dense talent and capital marketplace. If you are purely pre-seed and crypto is irrelevant to your stack, treat it as an investor networking opportunity and a hack for your engineers. Whether the week was worth it is exactly what the startup event ROI guide helps you measure, with the numbers to justify the time.

How do I decide: ETHDenver vs. the rest of the winter calendar?

For web3 founders, nothing else competes — the blockchain and web3 events guide gives you the full circuit, and ETHDenver is its anchor. For general networking, compare against San Francisco, Seattle, New York, Austin, and Chicago local event calendars. Most cities run their own crypto/web3 meetups year-round — you do not need to wait for Denver week to start building your network in your own city.

The 47Hz Denver guide is updated weekly with local events — browse live Denver events →

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