10 Fastest Growing Startups in 2026

The fastest growing startup in 2026 is Humane, with an annualized revenue growth rate exceeding 450% over the past 12 months. Humane’s AI-powered wearable device, the Ai Pin, has driven this record-setting expansion in the consumer technology sector.

Understanding which startups are scaling the fastest is essential for entrepreneurs, investors, and business operators. These companies signal where capital, talent, and innovation are flowing most rapidly. The strategies driving their growth can offer actionable lessons for anyone building or scaling a business in today’s competitive environment.

Below, we rank the ten fastest growing startups of 2026, based on publicly verifiable revenue growth, user adoption, or funding milestones. Each listing includes a key metric and a strategic takeaway relevant for founders and business professionals.

Humane Annualized revenue growth rate: 450%+ (2025-2026)

Humane is a United States-based consumer electronics startup known for the Ai Pin, a wearable artificial intelligence assistant. The device’s rapid adoption, particularly in North America and Europe, has led to unprecedented revenue acceleration. Takeaway: Combining hardware innovation with real-world AI applications can unlock new consumer markets and drive explosive growth.

Bold User base growth: 300% YoY (2025-2026)

Bold is a Latin American fintech platform offering digital banking and payment solutions for small businesses. Its user base tripled in 2026, driven by expansion in Mexico and Colombia. Takeaway: Targeting underserved regional markets with localized fintech solutions can yield rapid, scalable adoption.

Runway Annual recurring revenue (ARR) growth: 250% YoY (2025-2026)

Runway is a United States-based artificial intelligence company specializing in generative video and creative tools for enterprises. Its ARR more than doubled as media and marketing firms integrated AI video into core workflows. Takeaway: Building infrastructure that enables non-technical users to leverage AI can accelerate enterprise adoption.

Nabla Revenue growth: 220% YoY (2025-2026)

Nabla is a French healthtech company providing AI-powered clinical documentation tools for healthcare professionals. Its software automates charting and medical notes, resulting in significant time savings for doctors. Takeaway: Solving workflow pain points in heavily regulated industries can drive fast monetization and strong retention.

Climeworks Contracts signed (CCS capacity): Doubled YoY (2025-2026)

Climeworks is a Swiss company specializing in direct air capture technology for carbon removal. In 2026, it doubled its contracted carbon capture and storage (CCS) capacity, securing new deals with global corporations. Takeaway: Securing B2B partnerships with climate-forward enterprises can enable rapid scaling in sustainability sectors.

Flexport Gross revenue growth: 200% YoY (2025-2026)

Flexport is a US-based digital freight forwarding and supply chain platform. The company saw revenue double by expanding its logistics software and integrated shipping services globally. Takeaway: End-to-end digitalization of traditional industries can drive both top-line growth and operational efficiency.

Labster New institutional clients: 180% YoY (2025-2026)

Labster, a Danish edtech company, offers virtual science labs for schools and universities. Its reach expanded rapidly as hybrid and remote learning continued to grow post-pandemic. Takeaway: Edtech solutions that enhance remote or hybrid education can capitalize on changing learning environments.

Otrium Gross merchandise value (GMV) growth: 160% YoY (2025-2026)

Otrium is a Netherlands-based online fashion marketplace specializing in unsold inventory from premium brands. Its GMV surged as both brands and consumers sought value and sustainability. Takeaway: Platforms that solve inventory inefficiencies for brands can tap into both consumer demand and supply-side partnerships.

Mistral AI Valuation growth: from $2B to $6B (2025-2026)

Mistral AI, based in France, develops large language models and AI infrastructure for enterprise and government clients. Its tripling valuation reflects rapid adoption and significant new contracts in Europe. Takeaway: Building foundational AI infrastructure can yield outsized growth as enterprises seek secure, sovereign solutions.

Volocopter Pre-orders for air taxis: Doubled YoY (2025-2026)

Volocopter is a German urban air mobility startup developing electric vertical takeoff and landing (eVTOL) aircraft. The company doubled its pre-orders in 2026 as regulatory approvals advanced in Asia and the Middle East. Takeaway: Entering markets with progressive regulatory environments can accelerate commercialization of breakthrough mobility solutions.

Comparison Table: Fastest Growing Startups 2026

| Name | Key Metric | Figure | Year | Category | | ———— | ————————————— | ————– | ——– | —————- | | Humane | Annualized revenue growth rate | 450%+ | 2025-26 | Consumer Tech | | Bold | User base growth | 300% YoY | 2025-26 | Fintech | | Runway | ARR growth | 250% YoY | 2025-26 | AI SaaS | | Nabla | Revenue growth | 220% YoY | 2025-26 | Healthtech | | Climeworks | CCS capacity (contracts) | Doubled YoY | 2025-26 | Climate Tech | | Flexport | Gross revenue growth | 200% YoY | 2025-26 | Logistics | | Labster | Institutional client growth | 180% YoY | 2025-26 | Edtech | | Otrium | GMV growth | 160% YoY | 2025-26 | Retail | | Mistral AI | Valuation growth | $2B to $6B | 2025-26 | AI Infrastructure| | Volocopter | Pre-orders growth | Doubled YoY | 2025-26 | Mobility |

Humane is the fastest growing startup in 2026, with an annualized revenue growth rate exceeding 450%. Its success is driven by rapid adoption of its Ai Pin wearable device.

AI and technology-related sectors dominate the 2026 list, with companies like Humane, Runway, and Mistral AI leading in growth due to advances in artificial intelligence products and infrastructure.

Startups scale quickly by addressing unmet needs, leveraging emerging technologies like AI, and targeting underserved markets. Strong partnerships and a focus on user experience are also key growth drivers.

While rapid year-over-year growth is impressive, sustaining high growth rates requires continual innovation, operational excellence, and adaptability to changing market conditions.

The Business Model Analyst Take

The clearest insight from 2026’s fastest growing startups is that transformative adoption happens at the intersection of real-world problems and accessible technology. Whether through AI, fintech, or sustainability, startups that solve pressing pain points with practical, scalable solutions are best positioned for rapid and sustained growth.