--- title: Coherence Quantum raises €2.78M seed round to cut heat... description: Finnish startup Coherence Quantum, spun out of Aalto University's Quantum Computing and Devices group, raised €2.78 million in a seed round led by Lifeline... canonical: https://daily.dev/posts/coherence-quantum-raises-2-78m-seed-round-to-cut-heat-and-wiring-in-quantum-computers-1enfga7gh twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Coherence Quantum raises €2.78M seed round to cut heat and wiring in quantum computers | daily.dev og:description: Finnish startup Coherence Quantum, spun out of Aalto University's Quantum Computing and Devices group, raised €2.78 million in a seed round led by Lifeline... og:url: https://daily.dev/posts/coherence-quantum-raises-2-78m-seed-round-to-cut-heat-and-wiring-in-quantum-computers-1enfga7gh og:image: https://api.daily.dev/og/posts/1enfgA7gH.png og:image:alt: Coherence Quantum raises €2.78M seed round to cut heat and wiring in quantum computers og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Coherence Quantum raises €2.78M seed round to cut heat and wiring in quantum computers **[Collections](https://daily.dev/sources/collections)** · 2 min read · 0 upvotes · 0 comments ## Summary Finnish startup Coherence Quantum, spun out of Aalto University's Quantum Computing and Devices group, raised €2.78 million in a seed round led by Lifeline Ventures, with former MySQL CEO Mårten Mickos also participating. The company builds cryogenic signal conditioning and higher-density signal interfaces to tackle wiring, heat, and noise bottlenecks as qubit counts scale. Scaling from a few hundred to a thousand qubits requires at least 3,000 control lines, more than a standard dilution refrigerator can hold, and over 99% of control signal energy dissipates as heat inside the fridge, adding noise near the qubits. The company holds four patent applications covering components like a tunable filter and a 'quantum dial' to isolate qubits from noise while keeping them controllable. Funds will go toward a lab in Espoo, prototypes, manufacturing, and team growth. ## Content Coherence Quantum, a Finnish startup spun out of Aalto University's Quantum Computing and Devices group, has raised €2.78 million in seed funding. Lifeline Ventures led the round. Mårten Mickos, the former MySQL CEO, also participated. The company works on cryogenic signal conditioning and higher-density signal interfaces for solid-state quantum processors. The aim is to manage wiring, heat and noise as qubit counts grow. ## The wiring problem CEO Aashish Sah says the numbers get awkward fast. Going from a few hundred qubits to a thousand takes at least 3,000 control lines, more than a standard dilution refrigerator can hold. On top of that, over 99% of a control signal dissipates as heat inside the fridge, and that heat adds noise around the qubits. Coherence Quantum wants to move signal processing closer to the quantum processor, which would reduce the number of cables running into the fridge. ## The technology The company has four patent applications. They cover components such as a tunable filter and what it calls a "quantum dial," designed to isolate qubits from noise while keeping them controllable. ## What the money is for The funds will go toward a lab in Espoo, product prototypes, manufacturing processes and a larger team. Sah leads the company, with Suman Kundu as CTO and Erkki Soininen as CPO. ## Questions this post answers ### why does scaling qubit count create a wiring bottleneck in quantum computers Scaling quantum processors from a few hundred to a thousand qubits requires at least 3,000 control lines, more than a standard dilution refrigerator can physically hold. Additionally, over 99% of a control signal dissipates as heat inside the fridge, and that heat introduces noise around the qubits, compounding the engineering challenge as systems grow. _Anyone tracking quantum hardware scaling bottlenecks can follow funding and technical progress on daily.dev._ ### how much funding did Coherence Quantum raise and who led the round Coherence Quantum, a Finnish startup spun out of Aalto University's Quantum Computing and Devices group, raised €2.78 million in a seed round led by Lifeline Ventures. Former MySQL CEO Mårten Mickos also participated as an investor. The funds will support a lab in Espoo, product prototypes, manufacturing processes, and team expansion. _Developers watching quantum computing startups form their funding landscape can track rounds like this on daily.dev._ ## Similar posts on daily.dev - [S-Transistors Raises €2.6 Million Pre-Seed Round to Introduce Superconducting Transistor Platform](https://daily.dev/posts/s-transistors-raises-2-6-million-pre-seed-round-to-introduce-superconducting-transistor-platform-d0thf3ahe) · The Quantum Insider · 0 upvotes · 0 comments - [A Quantum Components Industry Is Emerging](https://daily.dev/posts/a-quantum-components-industry-is-emerging-0b5tgehgk) · IEEE Spectrum · 2 upvotes · 0 comments - [France’s Quobly raises €115M to put a quantum computer on a silicon chip](https://daily.dev/posts/france-s-quobly-raises-115m-to-put-a-quantum-computer-on-a-silicon-chip-nd866sw26) · The Next Web · 0 upvotes · 0 comments - [EeroQ Shows New Approach to Reducing Wiring in Quantum Computing Hardware](https://daily.dev/posts/eeroq-shows-new-approach-to-reducing-wiring-in-quantum-computing-hardware-c3mv3mpwt) · The Quantum Insider · 0 upvotes · 0 comments --- Tags: [#startup](https://daily.dev/tags/startup), [#hardware](https://daily.dev/tags/hardware), [#quantum-computing](https://daily.dev/tags/quantum-computing) [View this post on daily.dev](https://daily.dev/posts/coherence-quantum-raises-2-78m-seed-round-to-cut-heat-and-wiring-in-quantum-computers-1enfga7gh) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Coherence Quantum raises €2.78M seed round to cut heat and wiring in quantum computers","url":"https://daily.dev/posts/coherence-quantum-raises-2-78m-seed-round-to-cut-heat-and-wiring-in-quantum-computers-1enfga7gh","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/coherence-quantum-raises-2-78m-seed-round-to-cut-heat-and-wiring-in-quantum-computers-1enfga7gh"},"datePublished":"2026-10-20T07:50:52.505Z","dateModified":"2026-10-20T07:51:25.192Z","description":"Finnish startup Coherence Quantum, spun out of Aalto University's Quantum Computing and Devices group, raised €2.78 million in a seed round led by Lifeline...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/c8d1dfa3dff7577b7083be092b826e1e?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/c8d1dfa3dff7577b7083be092b826e1e?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"Collections","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Collections","logo":"https://media.daily.dev/image/upload/s--fk_6ycEi--/f_auto,q_auto/v1780996001/logos/collections?_a=BAMAMiWQ0","url":"https://daily.dev/sources/collections"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/coherence-quantum-raises-2-78m-seed-round-to-cut-heat-and-wiring-in-quantum-computers-1enfga7gh","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":0},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"startup,hardware,quantum-computing","timeRequired":"PT2M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Collections","item":"https://daily.dev/sources/collections"},{"@type":"ListItem","position":3,"name":"Coherence Quantum raises €2.78M seed round to cut heat and wiring in quantum computers"}]} {"@context":"https://schema.org","@type":"FAQPage","@id":"https://daily.dev/posts/coherence-quantum-raises-2-78m-seed-round-to-cut-heat-and-wiring-in-quantum-computers-1enfga7gh#faq","mainEntity":[{"@type":"Question","name":"why does scaling qubit count create a wiring bottleneck in quantum computers","acceptedAnswer":{"@type":"Answer","text":"Scaling quantum processors from a few hundred to a thousand qubits requires at least 3,000 control lines, more than a standard dilution refrigerator can physically hold. 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