Top B2B Startups in 2026

6sense is a B2B predictive intelligence engine for marketing and sales. Using its private network of billions of time-sensitive intent interactions, 6sense uncovers net-new prospects at every stage of the funnel and determines which existing prospects are in market to buy. 6sense predicts what products prospects will buy, how much they will buy, and when. 6sense is backed by Bain Capital Ventures, Battery Ventures, Venrock, and Salesforce and is based in San Francisco. 6sense.com

Modern Treasury builds payment operations software for high-growth companies. Our API and app modernize payment operations for disruptive companies building products that move and track money—think: rideshare marketplaces, digital wallet, fiat-crypto onramps—providing tools that help them grow faster. Enabling real-time payments, automatic reconciliation, continuous accounting, and compliance solutions, Modern Treasury’s platform is used to reconcile over three billion dollars per month. Founded in 2018, San Francisco-based Modern Treasury is backed by Benchmark, Altimeter, SVB Capital, Salesforce Ventures, NewView Capital, and Y Combinator.

Today, on your smartphone you have an app store where you can find a dozen apps to have food delivered to your door, but we don’t have an app store where a large enterprise, like a bank, can find an app for income verification, or where an insurance company can find an app for processing claims. Every such application is custom built. We should wonder — why? The desktop computer is an important interface for business applications. Problem is, it wasn’t built to perform modern business operations. The problem lies in the operating system. Where Android and iOS were designed to allow applications to interact with one another, desktop computing simply wasn’t. This means that operations such as deal analysis and loan processing, which toggle between human data and computer data, can’t be performed without the assistance of a human being. It’s not only inefficient for businesses but utterly uninspiring for workers. Instabase is on a mission to fix that: to rethink the way we use apps and the way those apps work together to improve business processes and empower innovators to solve problems on a larger scale. Read More: about.instabase.com/our-story

Podium exists to help local businesses win. Using Podium’s technology, local businesses are able to simplify the way they build their business and modernize the way they communicate with their customers – from collecting payments, facilitating online reviews, launching marketing campaigns, and much more. Our work and focus on local business and helping them to build thriving businesses has been recognized across the industry, including Forbes’ Next Billion Dollar Startups, Forbes’ Cloud 100, the Inc. 5000 (#13), and Fast Company’s World’s Most Innovative Companies. For more about our product, watch this video. Podium has a positive, inclusive, and supportive culture and was recently named one of Inc. Magazine’s Best Workplaces for 2021 (4 years in a row). We look for people who are curious, creative and are willing to do the work to be a little better every day. We also embody our company values in all that we do, which always starts with being Customer Obsessed, followed by Be a Founder, Zero Drama, and Enjoy the Ride.

Nextiva is a Connected Communications company that helps businesses grow faster. It lets people work smarter using its business VoIP phone service, video conferencing, and text messaging software. More than 100,000 companies rely on Nextiva for customer and team communication. U.S. News ranked it the best business phone system in 2020, 2021, 2022, and 2023. Nextiva’s business phone software regularly tops reviewer’s lists for superior uptime and ease of use. Nextiva uniquely manages all customer communications and engagement in one place to provide a truly unified view of the customer. It enhances the customer experience with sales and service tools, analytics, AI, and automation. Nextiva has pioneered Connected Communications from the ground up to provide actionable customer insights in real time across all channels, with communications at its core. With $200M in backing from Goldman Sachs Asset Management, we’re taking that vision to every customer, everywhere. Connected Communications leverages past and present conversations to provide a seamless employee and customer experience. It addresses the dilemma created by fragmented business tools by giving a complete picture of the customer in real time with actionable information for every user.

Field sales powers the economy — but most teams are struggling. Reps are buried in admin work, managers are stretched thin, and leaders can’t see what’s really happening in the field. Siro is redefining how field sales teams learn, perform, and win. We started as an AI-powered coaching platform that helped reps improve their outcomes in the field. Today, we’re something much bigger — an intelligent companion that automates sales reps’ tedious admin work, gives managers real-time visibility, and helps executives see around corners. Our platform integrates with systems like Salesforce, analyzing thousands of in-person sales conversations to surface insights, automate workflows, and drive better outcomes across the org. Think Iron Man’s Jarvis for sales — proactive, personalized, and built directly into the tools teams already use. Siro has raised $75M and is backed by world-class investors like Index, Fika, CRV, and SignalFire. We are trusted by leading home-improvement, retail, hospitality, and automotive brands, and powered by a lean team from Meta, McKinsey, Doordash, and Uber. We’re building the future of human-AI collaboration in sales — and we’re just getting started. ✔️ World-class team (McKinsey, Meta, DoorDash, Amazon) ✔️ Ambitious, high-ownership, collaborative culture built on relational responsibility ✔️ $75M raised from world-class investors (SignalFire, 01Advisors, CRV, Index Ventures, Fika Ventures) ✔️ 3x ARR YoY ✔️ Real traction with over 10,000,000 sales conversations recorded

Topsort is the leading AI and Auction-based retail media global company, transforming retailers and marketplaces into top ad networks on par with industry giants. Through seamless integration, Topsort provides a comprehensive Bidless™ retail media tech stack featuring highly flexible API tools, an industry-leading privacy-safe clean room with robust online and in-store attribution, and a transparent ad network for streamlined media buying across multiple ad networks. In just three years since launch, Topsort has raised $38 million in funding from investors like Pear Ventures, Quiet Capital, FJ Labs, and Upload Ventures.

SourceIQ is a cutting-edge tech startup dedicated to revolutionizing supplier sourcing through automation. Our flagship product is a cloud-based enterprise solution that streamlines procurement and supplier management.

At Paystand, we’re not just another fintech company—we’re trailblazers in decentralized finance (DeFi), transforming how businesses manage their finances. With thriving hubs in Santa Cruz, San Francisco, Austin, Minneapolis, Mexico City, Hermosillo, and Guadalajara, we’re leading a global revolution in financial systems. Recognized on the Inc. 5000 list for five consecutive years, we’re among the fastest-growing companies reshaping the future of finance. Our Expanding Ecosystem: Paystand isn’t just a company—it’s a growing global network. With the strategic acquisitions of Teampay, a leader in spend management, and Yaydoo, a top AR and AP platform in Latin America, we’re building an expansive ecosystem designed to revolutionize financial operations and fuel business growth worldwide.

One platform. One API. All Channels - from Pure-Play Webstore to Omnichannel infrastructure.