Top Software Startups in 2026

Thunder is building AI agents for B2B growth, starting with paid ads. Our platform gives growth marketers the same 100x leverage that engineers are getting from tools like Claude Code and Codex. Rather than sell another piece of software into an already fragmented stack, Thunder sells the entire outcome: customers hand us their paid channels, and we use our software to take responsibility for strategy, execution, and results. We capture more value than a traditional tool, while creating the feedback loop to build agents, memory, and workflows that let one exceptional operator do the work of an entire traditional team. Thunder raised a pre-seed in late 2025 and is backed by early leaders at OpenAI and HubSpot. We're live with paying customers, from high-growth Series A-C companies to larger enterprises, and are using our product to run their paid channels end-to-end.

Healthcare in the U.S. is fundamentally broken. The system is so complex that 88% of U.S. adults do not have the health literacy necessary to navigate it without help. Solace cuts through the red tape of healthcare by pairing patients with expert advocates and giving them the tools to make better decisions—and get better outcomes. We're a Series B startup, founded in 2022 and backed by Inspired Capital, Craft Ventures, Torch Capital, Menlo Ventures, and Signalfire. Our fully remote U.S. team is lean, mission-driven, and growing quickly. Solace isn't a place to coast. We're here to redefine healthcare—and that demands urgency, precision, and heart. If you're looking to stretch yourself, sharpen your edge, and do the best work of your life alongside a team that cares deeply, you're in the right place. We’re intense, and we like it that way.

Stellar Consulting Solutions is a boutique business & technology consulting company headquartered in Atlanta, GA. We deliver high quality, agile, and experienced workforce for niche technology projects of any scale. We help forward thinking clients to solve specific problems by understanding their needs and align talent that can move fluidly to match skill supply and demand on a real-time basis. Stellar Consulting has a unique combination of technical and digital skills to recruit, engage, and retain qualified talent. We have a stellar reputation for striving to achieve high ethical standards. Our use of Innovative techniques and industry best practices has made us one of the fastest growing boutique firms delivering to enterprise business.

Inception develops diffusion large language models for latency-sensitive applications. The company creates AI models and also reduces the GPU footprint, allowing organizations to run larger models at the same latency and cost or serve more users with the same infrastructure.