Einride
Stockholm, Sweden · StartupAutonomous electric freight company operating driverless Pods and software to decarbonize logistics.
StartupGrowthMobilityLogistics
Accelerator
Sting
Sting (Stockholm Innovation & Growth) is Sweden’s leading startup accelerator and incubator, founded in 2002 and based in Stockholm. Over two decades, Sting has built a reputation as one of Europe’s most successful support programs for high-tech startups. Each year, ~25 startups participate in Sting’s programs, which are tailored to ICT, sustainability, and deep tech ventures. Sting offers two main tracks: the Accelerate program (a shorter, intensive accelerator with investment) and the Incubate program (a longer incubation with office space and coaching). Startups benefit from SEK 400,000 (≈€35,000) in pre-seed investment via Sting’s Propel Capital angel fund, as well as hands-on mentorship from experienced entrepreneurs. Sting is notable for its extensive network in the Nordics – participants get access to 80+ industry mentors and introductions to a broad investor pool in Sweden and internationally. The results speak volumes: Sting has supported 270+ startups since inception, with a survival rate over 70% and multiple high-profile alumni. Success stories include Yubico (security keys unicorn), Sellpy (fashion recommerce, acquired by H&M), and ClimateView (climate planning SaaS). In addition to funding and coaching, Sting offers free office space at A House in Stockholm, product development labs, and perks from partners. The program emphasizes key performance indicators (KPIs) and growth milestones – Sting aims to help companies reach first customers, significant revenues, or Series A readiness within 6–18 months. Beyond individual companies, Sting has played a crucial role in Stockholm’s ecosystem: it co-founded SUP46 (Start-Up People of Sweden) co-working space and hosts Sweden’s annual Startup Demo Day. Sting alumni have collectively raised over €600 million. With the Swedish ecosystem maturing, Sting remains a cornerstone – providing new founders with structured support, an entrepreneurial community, and that all-important first investment to turbocharge their growth.
SwedenStockholmICTSustainabilityDeep Tech
Details
Location
Stockholm, Sweden
Category
Accelerator
Profile
/sweden/accelerator/sting
Related entries
Startups with overlapping focusKlarna
Stockholm, Sweden · StartupKlarna is a Swedish fintech company that pioneered the “buy now, pay later” (BNPL) model globally. Founded in 2005 by Sebastian Siemiatkowski, Niklas Adalberth, and Victor Jacobsson, Klarna started by offering online shoppers in Sweden a way to purchase goods on invoice (pay after delivery). Over the next decade, the company expanded across Europe and beyond, becoming a dominant online payments provider. As of 2021, Klarna was Europe’s highest-valued private tech company at $45.6 billion, reflecting meteoric growth fueled by consumers’ appetite for installment payments. Klarna’s app and services allow users to split purchases into interest-free installments or pay later, and it partners with over 450,000 retailers worldwide, including global brands like H&M, IKEA, and Nike. The company has over 150 million users across 45 countries and handled $80 billion in transaction volume in 2021. Klarna’s journey, however, has seen dramatic swings: after reaching a $45B valuation in mid-2021, a combination of rising interest rates and tech market downturn led to a downround in 2022, cutting its valuation to $6.7 billion (an 85% drop). The company restructured, laying off 10% of its staff, and refocused on profitability. By 2023, Klarna returned to profit and saw renewed growth, aided by expanding beyond BNPL into a full shopping app with price comparison, loyalty features, and banking services (Klarna obtained a banking license in Europe in 2017). In 2025, Klarna reportedly delayed an IPO amid market volatility but ultimately went public in September 2025, raising $1.37 billion. Despite valuation fluctuations, Klarna remains the global leader in BNPL, with a strong brand among Gen Z and millennial shoppers. Its journey from a small Stockholm startup to a financial giant serving 65 million customers (2025) at one point valued at $75 billion exemplifies the rise (and resiliency) of Europe’s fintech sector.
StartupLate StageFintechPayments
Lovable
Stockholm, Sweden · StartupAI-powered no-code builder that turns natural language prompts into working web and mobile apps.
StartupEarly StageAIDeveloper Tools
Neko Health
Stockholm, Sweden · StartupPreventive health company offering AI-assisted full-body scanning clinics for early detection of risks.
StartupGrowthHealthtechDiagnostics
Northvolt
Stockholm, Sweden · StartupNorthvolt was a Swedish battery developer and manufacturer founded in 2016 by former Tesla executives Peter Carlsson and Paolo Cerruti. It aimed to build Europe’s first homegrown lithium-ion gigafactories to supply electric vehicle batteries at scale. Northvolt quickly became Europe’s cleantech darling – it secured over $15 billion in funding from investors like Volkswagen (which took a 20% stake), Goldman Sachs, BMW, and the European Investment Bank. By 2021, Northvolt built its flagship factory in Skellefteå, Sweden (Northvolt Ett) and announced over $55 billion in orders from automakers including Volkswagen, BMW, Volvo, and Polestar. At its peak, Northvolt reached a valuation of $12 billion and was seen as Europe’s best hope against the Asian battery giants CATL, LG Chem, and Panasonic. The company’s progress was significant: it produced its first battery cell in late 2021 and began deliveries in 2022. However, behind the scenes, Northvolt struggled with the immense capital expenditures and operational complexities of scaling battery production. By late 2024, it had accumulated over $5.8 billion in debt and was burning ~$100 million per month, while its factory ran at only 5% capacity due to equipment installation delays and safety issues. In November 2024, Northvolt filed for Chapter 11 bankruptcy protection in the U.S., and on March 12, 2025, it filed for bankruptcy in Sweden, marking the largest industrial bankruptcy in modern Swedish history. The collapse was dramatic – once valued at $12B, Northvolt’s assets were later acquired by US startup Lyten for pennies on the dollar in 2026. Investigations revealed mismanagement: thousands of unopened equipment crates worth €430M were found on-site and a critical €2B BMW contract was lost after Northvolt fell two years behind schedule. Despite its failure, Northvolt’s ambition wasn’t in vain; it spurred the European Commission to launch the European Battery Alliance and rival startups (like France’s Verkor) to push forward. Northvolt’s story is a cautionary tale of euphoria and risk in cleantech – a venture that raised unprecedented funding and $50B in orders to put Europe on the battery map, only to crumble under execution challenges and debt.
StartupGrowthClimateIndustrial
Respeecher
Kyiv, Ukraine · StartupOverview: Respeecher is a cutting-edge AI voice synthesis startup that enables one person's voice to be transformed into the voice of another specific person, with uncanny realism. In other words, it's known for its voice cloning technology. Respeecher's system takes in an actor or user's speech and outputs audio that sounds like a target voice - be it a famous actor, a historical figure, or anyone for whom it has trained a model. This technology has huge applications in entertainment: filmmakers can revive voices of actors from years past, game developers can have characters speak in iconic voices, and creators can produce content where, say, a celebrity appears to narrate (with permission). What makes Respeecher stand out is the high fidelity of the cloned voices - they are nearly indistinguishable from the real person, capturing emotion and intonation accurately. Respeecher provides its tech via a software interface; typically, a voice model is trained on recordings of the target voice, and then a voice actor provides performance which is converted. Importantly, Respeecher emphasizes ethical use: it requires consent from the voice owners and has gained a reputation for an "ethics-first" approach in the emerging synthetic media field. Founding Story (2018): Respeecher was founded in February 2018 in Kyiv, Ukraine by Alex Serdiuk, Dmytro Bielievtsov, and Grant Reaber. Serdiuk and Bielievtsov are Ukrainian, and Reaber is an American speech technologist - the trio met through mutual research interests in speech processing. They realized that recent advances in deep learning could make high-quality voice conversion possible, and they set out to create a system far beyond the rudimentary voice changers of the past. In 2018-2019, they went through the Comcast NBCUniversal LIFT Labs Accelerator (powered by Techstars) in the US, which gave them industry connections. Early on, Respeecher got a lucky break: it was approached to work on a high-profile but secret project - which turned out to be Lucasfilm's The Mandalorian (Season 2 finale in 2020). The task was to recreate the voice of a young Luke Skywalker as he would have sounded in the 1980s, using Mark Hamill's old recordings. Respeecher delivered successfully, astonishing Hollywood sound engineers. This successful debut put Respeecher on the map in the film industry. In subsequent months, they also worked on a Super Bowl commercial voicing Vince Lombardi (AI-cloned from archival audio). The Ukrainian team, working under NDA, built these groundbreaking demos which then led to word-of-mouth referrals in Hollywood. Product and Use Cases: Respeecher's core product is delivered as a service to content creators. A client provides audio of the target voice (e.g., recordings of a person) and Respeecher trains a custom voice model. Then the client (often a voice actor or the person themselves) provides the new dialogue, which Respeecher's system converts into the target's voice. One notable use case was the documentary short film "In Event of Moon Disaster" - Respeecher recreated President Nixon's voice to simulate him reading a speech that was written in case Apollo 11 failed, and this project won an Emmy Award in 2021 for Outstanding Interactive Media (Respeecher's team was credited for the voice work). Another big use case: Darth Vader's voice in 2022's Obi-Wan Kenobi series - James Earl Jones, aged 91, could no longer perform with the same power, so Lucasfilm used Respeecher to generate Vader's lines using Jones' archival voice data. This was done with Jones's consent (he effectively authorized the AI recreation of his iconic voice). The result was so good that audiences thought Jones had recorded the lines himself. Outside of film/TV, Respeecher has been used in video games (e.g., to recreate voices of deceased voice actors so characters can return), and in music - in 2022, it enabled artist Aloe Blacc to perform a song where his voice was converted to sound like the late Avicii's voice, as a tribute. Researchers and archivists have also shown interest in using it to restore voices for people who lost theirs (like throat cancer patients), although that's still experimental. Traction and Achievements: Though a B2B company, Respeecher gained public fame because of the high-profile nature of its projects. By 2022, virtually every Star Wars fan and many industry professionals had heard of Respeecher due to media coverage of its involvement in resurrecting Luke Skywalker's youthful voice and Darth Vader's classic tones. The company has a relatively small number of clients (dozens of studios, game companies, etc.), but each project is high value. Its technology earned it an Engineering Emmy Award in 2021, and it won TechCrunch's Startup Battlefield (audience choice) at CES in 2020. In terms of funding, Respeecher raised about $1.5M in early 2020 (around the Techstars time), and as of 2021 it had raised over $3M in total from investors including Techstars, ff Venture Capital, and Acrobator Ventures. The team remained fairly lean (under 50 people) but comprised specialized AI researchers and sound engineers. Financially, Respeecher's revenue grew with each Hollywood contract; while not public, one can infer that by 2022 it was profitable or close, given the repeat work from Disney/Lucasfilm and others. One of Respeecher's achievements is also on the ethical front: in 2023 it was one of ten companies (alongside OpenAI and TikTok) to sign the Partnership on AI's framework for responsible media, committing to practices like obtaining consent, watermarking AI content, etc. This proactive stance has made them a trusted partner in an area often seen with suspicion (deepfakes). The war in Ukraine did pose a challenge - much of Respeecher's team was Kyiv-based, and during the Russian invasion in Feb 2022, the team amazingly continued working (the Obi-Wan Kenobi Vader voice project was completed in the spring of 2022 while Kyiv was under threat). This dedication further earned them respect in the industry. Key Partnerships: Respeecher's notable partnerships are with major studios like Disney/Lucasfilm, and with game studios such as CD Projekt Red (who used Respeecher in 2023 to voice a character in Cyberpunk 2077 in Polish, whose original actor had passed away). It also collaborated with the creative team of the documentary "Val" to recreate actor Val Kilmer's voice, which he lost due to cancer (Kilmer and his son provided the training data). Each successful partnership validates the tech and leads to more clients. On the academic side, Respeecher worked with medical research to explore giving people who lost their voice (e.g., ALS patients) a chance to speak in their own reconstructed voice - a heartwarming application of the tech. Future Outlook: Respeecher sits at the forefront of AI in media. The demand for voice cloning is likely to increase - whether to dubbing movies in a star's own voice across languages, bringing historical figures' voices to life for museums, or personal uses (with permission, someone might license their voice). The company's focus will be to maintain quality leadership as big players (like Microsoft or Google) also invest in voice AI. Respeecher's Ukrainian origin is a source of pride: it shows that despite adversity, Ukrainian tech can lead globally in innovation. The founders have expressed interest in eventually developing real-time voice conversion (currently it's not instant, it takes some processing time) and making the tech more accessible perhaps in creator tools. But they tread carefully to avoid misuse. In summary, Respeecher is a Ukrainian deep-tech startup that achieved what was once sci-fi - lending voices across time and space - and has done so responsibly. By powering some of Hollywood's most iconic moments with AI, it has cemented itself as a trailblazer in synthetic audio. As long as movies and games want to push creative boundaries, Respeecher's technology will likely be in the credits, helping the impossible become possible in voice. Sources: en.wikipedia.org, failory.com, techcrunch.com, youtube.com.
StartupGrowthAIMediaAudioDeep Tech