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The Venture Codex

Weekend Fund

San Francisco, CA, United States

Overview

Weekend Fund is a venture capital and angel investing firm focused on making early-stage investments. The firm invests across geographies and industries with a particular interest in audio and voice products, tools for distributed teams and remote workers, and low-code/no-code projects. It was established in 2017 and is headquartered in San Francisco, California, United States.

Total investments
35
Lead investments
0
Investments · 12mo
6
Active investors
8

Sector focus

  • Finance
  • Financial Services
  • Venture Capital
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Investment portfolio

  • Cytronic

    Participated · Seed · Jul 2026

    Cytronic operates automated, robotics-enabled warehouses delivered as a service that integrate with merchants' existing systems to handle storage, picking, packing and shipping. The model lets ecommerce brands outsource fulfillment without making multimillion-dollar equipment investments, and the company claims cost reductions of up to 80% and faster delivery. Cytronic's first facility is operational in Chicago, with a Dallas location planned to open soon. The service emphasizes that brands can scale fulfillment while retaining control of their customers. Public communications indicate the company is positioning for rapid expansion and expects to raise a Series A within the year. No revenue, user counts, or investor details were disclosed in the reporting.

  • Clouted

    Participated · Seed · May 2026

    Clouted builds infrastructure to handle both the creation and distribution strategy for short video clips by coordinating a network of more than 100,000 gig creators to edit content and applying AI to determine ideal platforms and target audiences. Its system runs thousands of experiments—described internally as similar to penetration testing—to identify clipping and distribution approaches that trigger viral performance, and it uses continuous testing loops so campaigns become progressively more targeted and effective. The founder, Justin Banusing, first applied the technology to promote &Friends, a Manila-based festival that now draws over 20,000 attendees. Clouted positions itself against automated clipping competitors like Overlap AI while aiming toward the larger enterprise marketing infrastructure market exemplified by players such as CreatorIQ and Hightouch. The company completed a16z’s Speedrun accelerator in 2024 and is scaling its platform and creator network following its seed raise.

  • Hamilton AI

    Participated · Seed · Mar 2026

    Hamilton AI offers a deterministic platform that ingests unstructured aviation inputs—emails, PDFs, operational documents, and maintenance records—and converts them into structured, auditable actions. Its system automates core workflows such as generating flight quotes, dynamic trip pricing, customer pipeline management, and payment reconciliation to speed and streamline the booking process. The technology is purpose-built to minimize hallucination risks and produce consistent, verifiable outputs across transactions. The company is led by founder and CEO Wouter Witvoet and is headquartered in New York City. Hamilton AI plans to use the newly raised seed capital to expand operations and accelerate development efforts.

  • Linkup

    Participated · Seed · Feb 2026

    Linkup is developing its own web index and search engine engineered specifically for how AI systems search, process, and understand information, rather than for traditional human browsing. By surfacing fresh, accurate, and factual data with minimal latency, the platform aims to become a foundational layer for AI applications that rely on real-time web knowledge. The company’s approach addresses the inefficiencies encountered when large-scale AI agents interact with the conventional human-oriented web. Linkup’s roadmap includes scaling its crawling and indexing capabilities and recruiting across New York, San Francisco, and Paris to accelerate product development. Founded by Philippe, Denis, and Boris, the team positions its technology as an essential building block within the broader AI ecosystem. Financially, the startup is backed by a $10 million seed round, which will fund hiring and infrastructure expansion. No revenue or user metrics have been disclosed to date.

  • Lucent

    Participated · Seed · Oct 2025

    Lucent is an early-stage artificial intelligence company founded by 22-year-old solo developer Alisa Wu that focuses on streamlining the creation and curation of high-quality training data. Wu describes ChatGPT as her de-facto CTO and is currently the company’s only employee. The startup’s core product, still under development, aims to remove one of the biggest constraints on advancing AI systems by improving access to reliable, scalable data sets. Although Lucent has not disclosed any revenue, customer, or usage figures, investor appetite for its mission underscores market demand for AI infrastructure tools. The newly raised funds will allow Wu to accelerate product development and make initial hires. Lucent embodies a lean operating model that leverages generative AI to minimize early headcount while advancing technical ambitions.

Team