Ferveret vs Heroku
Side-by-side comparison of AI visibility scores, market position, and capabilities
Two-phase immersion cooling using nuclear reactor-inspired subcooled nucleate boiling for AI data centers; $1M revenue with first 4MW contract delivered competing with GRC and LiquidStack.
About
Ferveret is a data center cooling technology company developing two-phase immersion cooling systems based on subcooled nucleate boiling — a heat transfer mechanism inspired by nuclear reactor cooling methods that achieves extremely high heat flux removal capability, enabling cooling of next-generation AI accelerators and high-performance computing chips that air cooling and single-phase liquid cooling cannot adequately handle. Founded in 2021, Ferveret raised $2.1 million from Y Combinator and E14 Fund, achieving $1 million in revenue in 2024 and successfully delivering its first 4 MW cooling contract from its El Paso, Texas manufacturing facility.\n\nFerveret's two-phase immersion approach works by submerging computing hardware in a dielectric fluid — when the chips generate heat, the fluid boils at precisely controlled temperatures, carrying heat away as vapor (the phase change enables far more heat transfer than single-phase liquid cooling). The subcooled nucleate boiling technology optimizes the boiling conditions for maximum heat transfer efficiency at controlled temperatures, enabling cooling of 300-1000W+ per chip that modern AI training accelerators (H100, B200) require. This approach addresses the fundamental limit that air cooling reaches at approximately 50W/chip.\n\nIn 2025, Ferveret competes in the data center thermal management market with GRC (Green Revolution Cooling, immersion cooling leader), LiquidStack, Submer, and traditional CRAC/CRAH air cooling for high-density AI compute installations. The data center cooling market has grown dramatically as AI training and inference workloads drive GPU density requirements beyond what air-cooled facilities can handle — NVIDIA H100 and B200 cards require 700W-1000W each, and the data centers being built for AI in 2024-2026 are designed for 40-80kW per rack, impossible with air. The successful 4MW delivery validates Ferveret's manufacturing capability. The 2025 strategy focuses on growing AI data center contracts with hyperscalers and colocation providers, scaling manufacturing capacity, and improving system density and heat reuse efficiency.
Salesforce-owned PaaS hosting 65M+ apps with git-push deployment; Heroku Connect syncs with Salesforce competing with Render and Railway for cloud application platform.
About
Heroku is a cloud application platform (PaaS) that enables developers to deploy, manage, and scale web applications without managing server infrastructure — supporting multiple programming languages (Ruby, Node.js, Python, Java, PHP, Go) and providing a simple git-based deployment workflow that made it the foundational platform for a generation of web developers. Founded in 2007 in San Francisco, Heroku was acquired by Salesforce in 2010 for $212 million and has since powered 65 million+ applications, serving 65 billion+ daily requests, with 200+ ecosystem add-on services in the Heroku Elements Marketplace.\n\nHeroku's deployment model allows developers to push code via git and have it automatically built and deployed to dynos (Heroku's containerized compute units) without configuring servers, load balancers, or deployment pipelines. Managed add-on services (PostgreSQL, Redis, logging, monitoring, email delivery) snap into applications without infrastructure configuration. Heroku Connect enables two-way data synchronization between Heroku PostgreSQL databases and Salesforce objects, creating a natural integration path for Salesforce customers building custom applications on Heroku.\n\nIn 2025, Heroku was named a Leader in the 2025 Gartner Magic Quadrant for Cloud-Native Application Platforms, with a new platform pilot available with GA targeted for early 2025. Heroku competes with Render, Railway, Fly.io, and AWS Elastic Beanstalk for PaaS and managed application hosting. After a period of stagnation under Salesforce ownership (including ending free dynos in 2022 and a high-profile security incident), Heroku has reinvested in the platform with modern infrastructure improvements. The 2025 strategy focuses on winning back developer trust through platform reliability improvements, deepening Salesforce ecosystem integration, and growing enterprise usage through the Salesforce sales channel.
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