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The Venture Codex

Rucker Park Capital

175 Varick Street 8th Floor, New York, NY, 10014, United States

Overview

Founded in 2017, Room40 Ventures is an early-stage fund focused on crypto and the venture strategy for Room40, a crossover crypto investment firm based in New York, New York. The firm partners with founders catalyzing the next wave of web3 adoption across defi, infrastructure, and web3 commerce.

Total investments
16
Lead investments
4
Investments · 12mo
1
Active investors
2

Sector focus

  • Cryptocurrency
  • Financial Services
  • FinTech
  • Logistics
  • Transportation
  • Venture Capital
  • Web3
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Investment portfolio

  • Daylight Energy

    Participated · Equity · Oct 2025

    Daylight Energy is building a decentralized fleet of rooftop solar arrays paired with home batteries, sold to homeowners through a monthly subscription that requires no initial payment. Once installed, each battery is aggregated into a virtual power resource, allowing the company to earn grid-service revenues during peak demand while still cutting customers’ utility bills. To make these cash flows transparent, Daylight has created DayFi, an on-chain protocol that links metered electricity output to tokenized claims and energy-backed payouts. Initial deployments are focused on Illinois and Massachusetts, markets selected for favorable interconnection rules and strong demand for resilience. Management believes its subscription can slash customer-acquisition costs that often exceed 60 % of traditional residential solar projects. A newly secured $75 million capital package—split between equity and a dedicated project facility—will fund installations and support the expansion of DayFi as the company scales its network.

  • Scope3

    Participated · Equity · Oct 2024

    Scope3 builds a platform that measures and models the carbon footprint of digital advertising and is expanding into AI-generated media. The company repurposed supply-chain tracking technology from a spun-off commodities business to gather data and build models that link programmatic ad waste to emissions. Scope3's tools identify waste in programmatic advertising—citing industry research that nearly a quarter of programmatic ad spend is wasted—and show how reducing wasted impressions lowers energy use and emissions. Founder Brian O’Kelley launched Scope3 in 2021 after shifting from a metal commodities trading platform. The startup is actively collecting data and building models for the AI portion of the business. Financially, Scope3 recently closed a $25 million funding round to help support its move into AI. Scope3 offers a collaborative sustainability platform (CSP) and a comprehensive emissions model that maps and calculates the carbon footprint of the entire digital advertising supply chain. Its model and platform enable stakeholders across the ad ecosystem to visualize emissions, make data-driven decisions, and deploy carbon-reduction products such as Climate Shield and Green Media Products (GMPs). Scope3 works with verification partners DoubleVerify and Integral Ad Science, dozens of brands and publishers including Sanofi, MasterCard, Insider, and MSN, and nearly every global agency holding company including GroupM and IPG. The company is a Public Benefit Corporation with a distributed global team across North America, Europe, and APAC. Scope3 plans to use new funding to accelerate development of its CSP, grow its global team of advertising, tech, and sustainability experts, and expand its data and measurement capabilities. The business announced a $20 million Series B to support that growth and product development.

  • Monto

    Participated · Seed · Jul 2024

    Monto is an AI connector that sits on top of any leading ERP to automate B2B payment collection from customers' AP portals. Its AI-based platform learns each customer's invoicing requirements to create "smart connections" that reduce manual portal work, mitigate late payments and improve cash flow. Monto supports integrations with NetSuite, Workday, QuickBooks, SAP, Microsoft Dynamics and others, aiming for a "zero-touch" automatic payments experience primarily via ACH and RTP. The company serves large enterprises across industries, including Shutterstock, TechTarget, Miro and G2. Monto reports it has helped suppliers get paid close to $1 billion through thousands of connections to buyers in more than 300 portals. Future plans include U.S. expansion from a newly opened New York office and continued advancement of its AI technology to further streamline B2B collections.

  • Arbelos Markets

    Participated · Seed · May 2024

    Arbelos Markets is a principal liquidity provider in crypto derivatives markets that operates a proprietary Transparency Engine enabling real-time visibility and verifiability across its portfolio of risk. The firm provides 24/7 liquidity across centralized markets, on-chain protocols, and bespoke hedging and yield-generation solutions. Founded in 2023 by Joshua Lim and Shiliang Tang, the company is NYC-based. In its first six months since launch it emerged as a top-five liquidity provider globally in options block liquidity. Total derivatives trading volume exceeded $25 billion notional across bilateral, on-exchange and on-chain orderbook and RFQ channels. The company plans to use new funds to improve its quant trading infrastructure, hire talent, and expand access to new markets and products.

  • Oxygen

    Participated · Series B · Feb 2023

    Oxygen offers a modern digital banking platform that lets users spend, send, and save across both personal and business lives. The platform is available on web, iOS, and Android and targets digital natives, creators, and entrepreneurs. Members receive features such as cashback rewards, early direct deposit, transfers, high-yield savings, and everyday retail and travel benefits. For businesses, Oxygen provides integrated solutions including nationwide LLC incorporation and custom invoicing to help start and scale operations. The company was launched in January 2020; David Rafalovsky is the current CEO, succeeding founder Hussein Ahmed, who remains with the company as Chief Product Officer. Oxygen plans to use new funding to increase investment in product development, improve user experience, and expand its workforce. Oxygen is a digital banking platform that offers integrated personal and small-business accounts via an all-in-one mobile app. Its accounts have no minimum balance or monthly fees, are FDIC insured through The Bancorp Bank, and include a Visa debit card with cashback rewards and early direct deposit. The product suite includes tools for LLC creation, expense management, and the ability to manage personal and business finances from within the Oxygen app. Since launching in January 2020, Oxygen has opened over 125,000 accounts and reported a greater-than-969X revenue increase. The company has built partnerships with Visa (joining Visa’s Fast Track program) and operates from San Francisco. Oxygen is backed by investors including Runa Capital and Y Combinator. Oxygen is a San Francisco-based digital banking service that offers free banking and flat-fee, zero-interest lines of credit to freelancers. The platform tracks freelancers’ bills, projects their income and offers instant credit via a mobile app available on iOS and Android. Users can purchase Oxygen Premier and pay a monthly flat fee to access a full range of free banking perks and the flat-fee, zero-interest line of credit. The company is led by founder and CEO Hussein Ahmed. Oxygen raised $2.3M in funding and intends to use the proceeds to expand the team and accelerate business growth. Investors named in the report include Digital Horizon Capital, Cynthia Chen, ZMT Capital (China), Locus Ventures, Endure Capital, PioneerFund, Magic City, Light Bridge, Strawberry Creek, Base Ventures, The House Fund and Sam Yam.

Team