Data & Infrastructure Startups

String provides a web data access API that lets developers and AI agents fetch live, structured data from any web page, offered as a simple API, DIY scraping pipelines, or delivered datasets. It supports programmatic access and MCP integration for agents like Claude and Cursor.

2 investors

Structify helps legacy businesses integrate AI into their operations by mapping data systems and business context, then delivering a concrete blueprint for AI-driven ROI within 30 days. The company serves established enterprises across industries seeking a pragmatic, results-oriented approach to AI implementation rather than consultant recommendations.

2 investors

SubQ is a sub-quadratic LLM infrastructure company that provides a 12M token context window API for developers and enterprise teams. The platform enables reasoning across full code repositories and long-running agent state through a sparse-attention architecture that reduces attention compute while maintaining reasoning quality.

2 investors

SummitIG is a network solutions provider offering custom, scalable dark fiber connectivity built on over 1,200 miles of underground metro and long-haul fiber optic infrastructure. It serves carriers, content providers, data center operators, large enterprises, and government agencies, with a footprint centered in Northern Virginia and additional markets including Columbus, Chicago, Salt Lake City, and Phoenix.

2 investors

Sun Zu Lab operates an independent platform that gives crypto token issuers visibility into their market making and liquidity operations, including data, analytics, contract monitoring, and AI-powered tools. It targets token issuers seeking transparency into Web3 market making arrangements.

2 investors

SUPA provides a network of human experts for data annotation, labeling, and quality assurance tasks such as image annotation, semantic segmentation, and UI curation. It serves companies building AI and machine learning products, including projects in medical imaging, AR try-on, and app design.

2 investors

SUPA (Supahands) provides data annotation, labeling, and curation services using a global network of specialists, supporting tasks such as image annotation, semantic segmentation, UI optimization, and medical imaging interpretation. It serves companies building AI and machine learning products that need scaled, high-accuracy training data.

2 investors

Superglue provides AI agents that automate enterprise system integration, data migration, and implementation work across cloud or on-premises infrastructure. The platform connects disparate systems and performs data synchronization tasks that typically require manual engineering coordination.

2 investors

Supergood generates real backend APIs for enterprise platforms that lack them by reverse-engineering the underlying network calls behind logins, handling MFA and CAPTCHAs via service accounts. It deploys and maintains these APIs on its own observability platform, offering an MCP server and REST API as an alternative to browser automation.

2 investors

Supersimple is an AI data analytics platform that combines governed data warehouse information with company knowledge into a single AI agent, letting teams query data in plain English and build explainable, no-code analyses. It offers a governed semantic layer with shared models, metrics, and permissions, and integrates with tools like Slack and Claude.

2 investors

Supplyframe operates the Design-to-Source Intelligence (DSI) Network, a set of vertical search engines, community sites, media properties, and SaaS tools used by engineering, sourcing, and supply chain professionals. The network aggregates data on electronics part availability, lead times, downloadable CAD models, and market signals for supply, demand, and commercial intent.

2 investors

SurveyMonkey is an online platform for creating surveys and forms to run market research, customer satisfaction, event registration, and employee feedback programs. It offers AI-assisted survey building, expert templates, a global respondent panel, analytics tools, and integrations for individuals, teams, and enterprise organizations.

2 investors

SWARM develops AI-powered decision intelligence software that optimizes operations across supply chain, logistics, labor planning, and inventory management. The platform uses intelligent agents trained on operational logic to help enterprise operations teams adapt to real-time volatility and make decisions faster.

2 investors

Charm provides data on DTC and TikTok Shop brands, tracking over 5 million brands with proprietary growth and success scores to help consumer investors source and conduct due diligence on investment opportunities. The platform delivers metrics such as TikTok Shop sales, social and demographic data, revenue, funding activity, and verified founder contact information via CRM integrations, an API, and data feeds.

2 investors

Switchboard provides a data integration layer that unifies fragmented data sources into governed, AI-ready pipelines for enterprises. It serves revenue operations, marketing, engineering, and data teams with pre-built pipelines, consolidated dashboards, and controlled LLM access to enterprise data.

2 investors

Switchboard provides a supply chain integration platform that automates data exchange and onboarding of trading partners across multiple systems. The platform enables businesses to manage inventory, orders, and documentation while maintaining end-to-end visibility across their supply chains.

2 investors

2 investors

Synagistics is a Singapore-based AI and big data company that operates a data-driven commerce platform (Synagie) and an enterprise generative AI platform (Geene) for over 600 enterprises and global brands. It serves businesses across Southeast Asia, Hong Kong, and Spain, and is expanding into digital finance and asset tokenization.

2 investors

Syncari provides a data orchestration platform that aligns and synchronizes data across enterprise systems to enable teams and AI to operate with shared context. The platform serves enterprise organizations managing customer data and AI operations.

2 investors

Syndigo offers an AI-native product experience management (PXM) platform for retailers, unifying product data from vendors through to the shelf in a single interface. Its Product Experience Cloud for Retail handles vendor onboarding, data governance, content enrichment, syndication, and space/planogram management, and provides access to a large network of suppliers and verified products.

2 investors

Synnada is an AI infrastructure company building tools for running persistent, continuously operating agent systems in production, including Mithril (an ML compiler), Tenet (multi-cloud deployment for AI workloads), and Agentia (a runtime for persistent agents). Its Agency product applies these to agent-native data science, combining reasoning, code execution, and machine learning into continuously operating decision systems.

2 investors

Synnax provides software tools for engineering teams to build hardware technology. The platform targets hardware developers and engineers working on physical products.

2 investors

Synthefy develops Nori, an open-weight foundation model for tabular prediction that returns predictions from labeled context without fitting or training a new model. The model is offered as open source under Apache 2.0 and via a managed hosted API, positioned as an alternative to tools like XGBoost.

2 investors

TakeShape is a data-first platform that connects, transforms, and activates fragmented enterprise data to serve as a runtime for building and orchestrating AI-driven agents. It offers a universal API connector, data pipelines with indexing and vectorization, multi-LLM agent orchestration, and GraphQL/MCP endpoints for enterprises adopting agentic AI.

2 investors