Developer Tools Startups

BaseKit provides website builder software that other companies offer to their own customers, including its Go Sitebuilder product. It operates as a white-label website building platform serving partner businesses and their end users.

3 investors

Basemark develops software solutions for automotive OEMs and tier suppliers to reduce chip requirements in vehicles and accelerate the development of sustainable vehicles by minimizing environmental impact from semiconductor manufacturing.

3 investors

Baserow is an open-source low-code platform that allows users to build databases and applications without coding. It serves teams and organizations looking for self-hosted or cloud-based database solutions.

3 investors

Bauplan is an execution layer that lets AI agents and engineers build, validate, and ship data pipelines on production data using isolated branches, atomic publishes, and rollback. Pipelines are written as versioned Python and SQL code with quality checks, following a branch, run, inspect, and merge workflow.

3 investors

Bayes built a data exploration and visualization tool. The company was part of Y Combinator's Summer 2019 batch and was acquired by Airtable in 2021.

3 investors

Bayou Energy provides APIs for companies to deploy and manage clean energy devices. The company serves businesses seeking to achieve clean energy independence.

3 investors

BenchFlow is a data lab that builds stateful environments — with services, files, tools, verifiers, traces, and replay — for training and evaluating AI agents on real computer workflows rather than static prompts. It ships SkillsBench for procedural skills, ClawsBench for simulated workplaces, and the BenchFlow runtime, working with frontier model labs and academic partners.

3 investors

Berbix provides ID verification and fraud detection technology that companies access through developer SDKs to confirm their users' identities. It serves online platforms across a range of industries needing to validate user IDs.

3 investors

Berget AI provides sovereign, open-source AI infrastructure and platforms for organizations to build and deploy their own AI models in compliance with EU regulations, addressing barriers such as GPU capital requirements, regulatory complexity, and lack of local language model access. The company serves European enterprises and organizations seeking AI innovation with data residency guarantees and transparent, cost-effective alternatives to commercial cloud AI services.

3 investors

Bespoke Labs develops AI research infrastructure and reinforcement learning environments for building reliable autonomous agents. The company works with frontier AI labs and enterprises to transition agents from proof-of-concept systems to production-ready coworkers.

3 investors

Better Stack is an observability and monitoring platform offering log management, metrics, incident alerting, and status pages for engineering teams, positioned as a cheaper alternative to Datadog. It targets software teams ranging from indie hackers to publicly traded companies.

3 investors

Bezi is an AI agent that operates within Unity to assist game developers with code generation, scene building, debugging, and automation tasks. It indexes a developer's full project context—scripts, assets, scenes, and documentation—to provide tailored assistance while maintaining data privacy and security.

3 investors

x1 is an AI-powered app studio that guides builders through structured stages—planning, design, build, QA, launch—to create and launch working iPhone products. The platform serves app creators and non-technical founders who want to turn app ideas into monetizable mobile businesses.

3 investors

Bilanc provides analytics software for engineering teams, using AI to examine code and generate reports about developer experience and productivity metrics for team leadership.

3 investors

BitBar is a cloud-based testing platform for running manual and automated tests of web, native, and hybrid apps across real browsers and devices without maintaining a physical device lab. It serves software development and QA teams, offering public cloud, private cloud, and dedicated device deployment options with CI/CD integration.

3 investors

bitHuman turns photos into real-time, lip-synced video avatars and AI characters with voice, running fully on-device across hardware from Raspberry Pi to iPhone to NVIDIA GPUs. It offers Python and Swift SDKs, a REST API, and a no-code dashboard for developers building talking avatars, illustrated multimedia books, and privacy-sensitive, self-hosted or air-gapped deployments.

3 investors

Bitnami packages, deploys, and maintains server software, offering a catalog of 120+ ready-to-run applications and tools to migrate custom in-house applications to the cloud across multiple platforms and formats. It serves developers and IT teams looking to deploy application stacks and infrastructure software.

3 investors

Bitrig is an AI-assisted development tool for building native applications. Built by former members of Apple's SwiftUI team, it enables developers to create high-quality, polished apps with reduced complexity.

3 investors

BlindPay provides a payment infrastructure platform that orchestrates stablecoins, local payment rails, virtual accounts, and compliance for global financial transactions. The company serves developers and companies building payment functionality, offering SDK-based fiat gateway integration with low fees and minimal on/off-ramp delays.

3 investors

Blink Eye develops AI-powered eye-tracking technology that enables human-computer interaction through eye movement alone. The company builds machine learning systems for integration into consumer devices and applications.

3 investors

Blitz provides a no-code platform that enables business teams to build and deploy internal tools and applications without requiring core engineering resources. The platform targets client-facing functions and back-office teams who need to create custom business applications with autonomy and security.

3 investors

Blockscout is an open-source multichain block explorer for EVM-based networks, supporting over 1,000 chains including layer 1s, optimistic rollups, and zk rollups. It lets users and developers search blocks, transactions, accounts, and tokens, verify smart contracts, access APIs and developer tools, and interact with dApps through its DAppscout marketplace.

3 investors

Blockus provides a platform and developer tools (SDKs, APIs, multi-chain wallet and bridging support, gasless transactions) that let game studios add on-chain features, onboard players with KYC/AML compliance, and mint in-game NFTs and tokens. It serves game developers building web, mobile, desktop, and cross-platform blockchain gaming experiences.

3 investors

BlockVision provides blockchain data infrastructure for EVM chains and Sui, including block explorer services, RPC nodes, indexing APIs, and validator services. It serves enterprise clients, startups, and retail users with tools such as real-time data access, transaction monitoring, trace analysis, and DeFi portfolio indexing.

3 investors