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Flex Capital
San Francisco, United States
Flex Capital is a founder‑backed seed fund that invests $500K average checks in early‑stage AI, B2B and enterprise software companies. They focus on ambitious founders and provide strategic network, double‑down follow‑on...
Portfolio
22+
Employees
25+
Founded
1999
AUM
≈ $468.6M
Investment focus
Stages
Seed
Industries
Software OnlyArtificial IntelligenceEnterprise Software
Geographic scope
North America
Fund details
Funds
Flex Capital Fund I
Vintage 2019 • $138.6M
Flex Capital Fund II
Vintage 2023 • $330.0M
Check sizes
Typical: $500.0K
Sources
Flex Capital
Flex Capital is a founder‑backed seed fund that invests $500K average checks in early‑stage AI, B2B and enterprise software companies. They focus on ambitious founders and provide strategic network, double‑down follow‑on support, and fast decision making.
Portfolio
22+
Employees
25+
Founded
1999
AUM
≈ $468.6M
Funds
Flex Capital Fund I · Vintage 2019 • $138.6M
Flex Capital Fund II · Vintage 2023 • $330.0M
Check Sizes
Typical: $500.0K
Stages
Seed
Industries
Software OnlyArtificial IntelligenceEnterprise Software
Geographic scope
North America
Sources
Showing 18 of 18 matched portfolio companies
Airbyte is an open-source data integration engine that enables organizations to sync data from various applications to data warehouses, facilitating seamless data movement across multi-cloud environments. By providing a platform for building custom connectors with low-code or no-code options, Airbyte addresses the challenge of managing diverse data sources while ensuring data privacy and governance.
Funding: $181.2M
Rough estimate of the amount of funding raised
Funding: $181.2M
Rough estimate of the amount of funding raised
AngelList is a platform connecting startups with angel investors and job-seekers in the startup ecosystem. It facilitates investment opportunities and job placements, addressing the challenge of finding funding and talent in the competitive startup landscape.
Funding: $44.0M
Rough estimate of the amount of funding raised
Funding: $44.0M
Rough estimate of the amount of funding raised
Chime offers a mobile‑first, fee‑free checking account linked to a Visa debit card, providing access to a network of over 47,000 fee‑free ATMs and early direct‑deposit of paychecks up to two days in advance. The platform also includes a high‑yield savings account, fee‑free overdraft coverage, a secured credit‑builder card that reports to major bureaus, and instant, fee‑free peer‑to‑peer payments, all backed by FDIC‑insured partner banks.
CodeRabbit provides AI-driven, line-by-line code reviews that enhance code quality and security by utilizing abstract syntax tree (AST) analysis and contextual feedback. This technology reduces code review time and identifies bugs, enabling developers to focus on more complex issues while maintaining high standards in their codebase.
Funding: $19.6M
Rough estimate of the amount of funding raised
Funding: $19.6M
Rough estimate of the amount of funding raised
Loop is a privacy-first platform that utilizes NFC technology to facilitate secure, real-life interactions and community engagement without compromising personal information. It enables users to verify attendance and customize their experiences, addressing the need for authentic connections in both physical and digital spaces.
Funding: $2.0M
Rough estimate of the amount of funding raised
Funding: $2.0M
Rough estimate of the amount of funding raised
Datavant is a health data platform that utilizes proprietary tokenization technology to securely connect and transfer patient data across a vast network of over 70,000 hospitals and clinics. This infrastructure addresses the challenge of fragmented health data access, enabling organizations to leverage real-world data for improved patient outcomes and research initiatives.
Funding: $83.0M
Rough estimate of the amount of funding raised
Funding: $83.0M
Rough estimate of the amount of funding raised
Provides a B2B email and phone number discovery platform that aggregates contact data from over 15 premium vendors, using a waterfall enrichment strategy to maximize find rates. This service enables sales and marketing teams to retrieve accurate contact information from sources like LinkedIn Sales Navigator and spreadsheets, reducing missed opportunities and increasing pipeline growth by over 37%.
Funding: $2.0M
Rough estimate of the amount of funding raised
Funding: $2.0M
Rough estimate of the amount of funding raised
G2 operates a software marketplace that utilizes over 2.8 million user reviews to help businesses research, purchase, and manage software solutions effectively. The platform also features Monty, an AI assistant powered by ChatGPT, which streamlines the software buying process by providing personalized recommendations based on user needs.
Founded 2012
1000+
Approximate amount of employees
Funding: $157.0M
Rough estimate of the amount of funding raised
Funding: $157.0M
Rough estimate of the amount of funding raised
GoFreight provides a cloud-based freight forwarding platform that automates operations from quotation to shipment tracking, integrating security filing and billing processes. This solution enhances visibility and efficiency for freight forwarders, enabling them to manage over 5 million container shipments while reducing costs associated with demurrage and detention fees.
Funding: $23.2M
Rough estimate of the amount of funding raised
Funding: $23.2M
Rough estimate of the amount of funding raised
GoodDay provides an AI-native inventory management system specifically designed for Shopify brands as an alternative to legacy ERPs. This platform unifies purchase orders, vendor management, shipping, and operational data directly within the Shopify admin environment. The system enables brands to streamline operations, reduce manual errors, and gain proactive insights to optimize inventory and scale efficiently.
Funding: $6.0M
Rough estimate of the amount of funding raised
Funding: $6.0M
Rough estimate of the amount of funding raised
H1 provides a health data platform that utilizes AI-enabled analytics to connect life sciences companies with healthcare professionals, enhancing clinical trial design and patient access. The platform addresses the challenge of identifying suitable investigators and optimizing diversity in clinical trials by delivering precise data insights and performance metrics.
Founded 2017
Funding: $233.9M
Rough estimate of the amount of funding raised
Funding: $233.9M
Rough estimate of the amount of funding raised
Mercury provides a digital banking platform that integrates financial workflows, enabling startups to manage banking tasks, invoicing, and expense tracking from a single dashboard. This streamlined approach reduces operational complexity and enhances financial decision-making, allowing over 200,000 companies to optimize their spending and cash flow management.
Funding: $166.7M
Rough estimate of the amount of funding raised
Funding: $166.7M
Rough estimate of the amount of funding raised
Okahu provides an AI observability platform that automatically discovers and monitors all components of generative AI workloads—such as LLM APIs, LangChain pipelines, Nvidia Triton servers, and cloud services—offering a unified, real‑time view of execution flow, latency, and resource health. The platform correlates telemetry to pinpoint performance or reliability issues, predicts the impact of code or configuration changes, and delivers actionable recommendations for debugging, cost optimization, and reliability improvements.
Funding: $20.0K
Rough estimate of the amount of funding raised
Funding: $20.0K
Rough estimate of the amount of funding raised
Perplexity provides an AI-powered answer engine that delivers direct, sourced answers to user queries. It integrates AI capabilities directly into the browser via the Comet Assistant for enhanced web interaction. Users can access advanced features like Pro Search and query history by signing into an account.
Funding: $500.0M
Rough estimate of the amount of funding raised
Funding: $500.0M
Rough estimate of the amount of funding raised
Replit is a browser-based integrated development environment that utilizes an AI agent to automate the development of web applications from user prompts. This platform enables users to quickly create, refine, and deploy applications without requiring extensive programming knowledge or setup, addressing the challenge of accessibility in software development.
Funding: $222.0M
Rough estimate of the amount of funding raised
Funding: $222.0M
Rough estimate of the amount of funding raised
StackBlitz provides a browser-based development environment powered by WebContainers, allowing developers to write, run, and debug frontend code without the need for local installations. This eliminates the complexities of setting up local environments and enables instant sharing of secure, reproducible development setups via a simple URL.
Funding: $135.9M
Rough estimate of the amount of funding raised
Funding: $135.9M
Rough estimate of the amount of funding raised
Tailscale provides a WireGuard-based VPN solution that enables secure, private networking for users, services, and devices without extensive setup or configuration. It addresses the challenges of traditional corporate VPNs by eliminating upfront costs, minimizing latency, and allowing seamless integration with existing infrastructure.
Funding: $117.3M
Rough estimate of the amount of funding raised
Funding: $117.3M
Rough estimate of the amount of funding raised
The startup offers a cloud-based workflow platform that optimizes the development and deployment process for frontend teams by hosting static websites and serverless functions within the jam stack model. This approach enables pre-rendered web pages to be efficiently served via a content delivery network, enhancing performance and reducing deployment complexity.
Funding: $563.0M
Rough estimate of the amount of funding raised
Funding: $563.0M
Rough estimate of the amount of funding raised
Showing 4 of 4 unmatched portfolio companies