Data & Infrastructure Startups

Stylus provides cross-industry trends intelligence, expert trend analysis, and forecasts delivered through a research platform with AI research assistance and dedicated member support. It serves businesses across multiple industries looking to identify growth and innovation opportunities.

2 investors

Submer develops thermal architecture and modular data center infrastructure for high-density AI deployment. The company provides advanced liquid cooling, AI-ready data center solutions, and GPU/AI services operating globally from its Barcelona headquarters.

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

Summer is a data intelligence layer for marketing agencies that connects ad platforms, CRMs, and analytics tools and normalizes them into one queryable layer, letting teams ask client questions in plain English inside Claude or ChatGPT and get verified answers with charts. It also generates branded reports and can plug into existing data warehouses like Snowflake, BigQuery, or Postgres.

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

SUPA provides data labeling and curation services for machine learning teams, covering object detection, semantic segmentation, RLHF, classification, and generative AI. It serves ML teams worldwide across industries such as agriculture, healthcare, and retail.

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

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

Superserve provides durable Firecracker-based virtual machines and sandboxes for AI agents, allowing long-running agent workloads to pause indefinitely, snapshot, and resume with persistent state. It targets developers building AI agents, offering isolated microVMs with security features like a credentials broker and network egress controls.

2 investors

Supersimple provides enterprise search functionality that indexes and searches data across multiple connected tools like Slack, Google Drive, Notion, and Confluence, with real-time indexing and permission-aware results that respect each user's access level in the original services.

2 investors

Surfe provides a sales prospecting and data enrichment platform that combines GTM intelligence, real-time buying signals, verified contact data, and AI-powered prospect prioritization to help teams build pipeline. It is built for SDRs, BDRs, account executives, RevOps teams, recruiters, agencies, and other GTM organizations focused on outbound sales.

2 investors

A data science collective specializing in ESG and SDG analytics for corporate sustainability assessment. The firm uses data-driven insights to evaluate and illuminate companies' sustainability practices for financial and impact stakeholders.

2 investors

Swarm is an open-source, decentralised peer-to-peer storage and communication network that lets developers build serverless, permissionless web3 applications, run Bee nodes, and store data in a fault-tolerant, censorship-resistant way. It also provides the Fair Data Protocol for data interoperability and privacy, serving web3 developers, creators, and non-profits.

2 investors

SwipeCredit builds a unified revenue infrastructure platform designed to consolidate fragmented revenue tools for enterprise customers. The platform serves Fortune 100 organizations, insurance carriers, and growth-stage businesses requiring auditable, governed revenue management.

2 investors

Swirlds developed hashgraph, an asynchronous Byzantine fault tolerant consensus algorithm for distributed applications, and its team founded and built the Hedera public ledger. The company is associated with Swirlds Labs, which now leads development of the Hedera platform and network services.

2 investors

Switchboard provides a unified integration platform for automating data exchange across supply chains, connecting partners through APIs, EDI, FTP, and manual uploads while enabling workflow automation for orders, invoices, shipments, and inventory management.

2 investors

Syft automates multi-channel lead activation by triggering personalized campaigns across email, LinkedIn, Slack, and advertising the moment a qualified prospect is identified. The platform serves sales and marketing teams seeking to accelerate lead routing and engagement without manual intervention.

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

Synchtank builds software for managing and monetizing music catalogs, serving record labels, music publishers, production music libraries, and broadcasters. The platform helps music industry professionals organize, discover, and generate revenue from their music assets efficiently.

2 investors

Synqly provides a unified API platform that delivers native integrations for security and IT operations vendors, enabling them to integrate once and gain access to multiple providers across categories. The platform enables secure OEM integrations in regulated environments and supports AI-driven integration through Model Context Protocol.

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

Tabsdata provides a data platform architecture built around immutable versioned tables and execution-native lineage, designed to enable AI agents to operate safely by making data changes traceable, auditable, and rollback-capable. The system is deployed as Kubernetes-native infrastructure that can run on any cloud, hybrid, or on-premises environment.

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