# Rainmaker **Source:** https://geo.sig.ai/brands/rainmaker **Vertical:** Finance **Subcategory:** General **Tier:** Emerging **Website:** rainmaker.nyc **Last Updated:** 2026-04-14 ## Summary NYC YC W23 DeFi mobile wallet making yield investing accessible via account abstraction; $31.3M total ($25M Lowercarbon Series A May 2025 + 2024 seed) with auto-compounding positions competing with Coinbase Wallet for mainstream DeFi adoption. ## Company Overview Rainmaker is a New York City-based DeFi mobile wallet — backed by Y Combinator (W23) with $31.3 million in total funding including a $25 million Series A in May 2025 from Lowercarbon Capital and others, following a 2024 seed from Starship Ventures, Long Journey Ventures, and Day One Ventures — providing mainstream users with an account-abstraction-based mobile crypto wallet that reduces the complexity of DeFi investing to a few taps, enabling auto-compounding yield positions with performance fees (similar to Beefy.finance) and planning subscription services and integrated tax reporting. Founded in 2023 and backed by Y Combinator W23, Rainmaker targets the mass market of potential DeFi participants who are deterred by wallet complexity, gas fee management, and protocol interaction barriers. Rainmaker's DeFi accessibility platform addresses the UX complexity that has kept decentralized finance adoption limited to technically sophisticated users: a mainstream user wanting to earn yield on their crypto holdings through DeFi protocols (Aave, Compound, Uniswap liquidity provision) currently needs to understand wallet seed phrases, gas fee estimation, transaction signing, slippage tolerance, and protocol-specific interfaces — a 15-step process that screens out users comfortable with traditional investing but unfamiliar with blockchain mechanics. Rainmaker's account abstraction architecture (using smart contract wallets that handle gas fees, transaction batching, and protocol interaction in the background) presents DeFi yield strategies as simple investment options: choose a strategy, deposit, and let Rainmaker's auto-compounding handle the periodic reinvestment that maximizes yield without manual intervention. The performance fee model (taking a percentage of yield generated rather than charging upfront) aligns Rainmaker's incentives with user returns. In 2025, Rainmaker competes in the mobile DeFi wallet, crypto yield management, and Web3 consumer finance market with Coinbase Wallet (NASDAQ: COIN, self-custody wallet, largest consumer crypto platform), Rabby Wallet (EVM wallet by Debank, popular among DeFi power users), and Zerion (DeFi portfolio manager, $8.2M raised) for mainstream consumer DeFi accessible investment and yield generation platform adoption. Lowercarbon Capital's Series A investment (Lowercarbon focuses on climate-related investments but has expanded to broader impact tech) reflects conviction in Rainmaker's mass market DeFi accessibility thesis. Y Combinator W23 backing connects Rainmaker with the crypto infrastructure and fintech investor community. The 2025 strategy focuses on the crypto-curious mainstream investor segment (people with Coinbase accounts but not yet DeFi users), building the tax reporting integration for DeFi transaction tracking required for IRS compliance, and expanding the yield strategy library to include emerging L2 and real-world asset (RWA) protocols. ## Frequently Asked Questions ### What is Rainmaker? Rainmaker is a New York City-based DeFi mobile crypto wallet company founded in 2023 that simplifies DeFi investing through account-abstraction technology. The company participated in Y Combinator's Winter 2023 batch and has raised $31.3M in total funding to make DeFi accessible to mainstream users. ### What products and services does Rainmaker offer? Rainmaker offers a mobile crypto wallet with account-abstraction that enables DeFi investing in just a few taps. The platform features auto-compounding positions with performance fees similar to Beefy.finance, and plans to introduce subscription services and tax reporting features. ### Who is Rainmaker designed for? Rainmaker targets mainstream users seeking simplified access to DeFi investing. The platform is built to reduce DeFi complexity and make decentralized finance accessible to users who may find traditional DeFi platforms too complicated. ### When was Rainmaker founded? Rainmaker was founded in 2023 and participated in Y Combinator's Winter 2023 batch. ### Where is Rainmaker located? Rainmaker is based in New York City, New York. ### How much funding has Rainmaker raised? Rainmaker has raised $31.3M in total funding from 9 investors. This includes a seed round in 2024 from Starship Ventures, Long Journey Ventures, and Day One Ventures, plus a $25M Series A round in May 2025 led by Lowercarbon. ### What are Rainmaker's key achievements? Rainmaker has successfully raised $31.3M in total funding, participated in Y Combinator's Winter 2023 batch, and attracted 9 total investors. The company has built an account-abstraction-based mobile wallet that simplifies DeFi investing to just a few taps. ### What technology does Rainmaker use? Rainmaker uses account-abstraction technology in its mobile crypto wallet to simplify DeFi investing. The platform features auto-compounding positions with a performance fee model similar to Beefy.finance. ### How does Rainmaker generate revenue? Rainmaker generates revenue through performance fees on yield from auto-compounding positions, following a model similar to Beefy.finance. The company also plans to introduce subscription services and tax reporting features. ### What are Rainmaker's recent developments? Rainmaker's most recent development is closing a $25M Series A funding round in May 2025 led by Lowercarbon. The company continues to develop its account-abstraction mobile wallet and plans to launch subscription services and tax reporting features. ## Tags b2c, fintech, blockchain, startup, north-america --- *Data from geo.sig.ai Brand Intelligence Database. Updated 2026-04-14.*