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Arize Phoenix
LLM observability
Arize Phoenix is an open-source AI observability and evaluation platform developed by Arize AI, designed to help teams monitor, debug, and evaluate large language model (LLM) applications and machine learning models. It provides tools for tracing LLM calls, evaluating model outputs, visualizing embeddings, and identifying issues such as hallucinations, retrieval failures, and prompt problems. Phoenix supports integration with popular frameworks like LangChain, LlamaIndex, and OpenAI, enabling developers to gain deep insights into their AI pipelines throughout the development and production lifecycle.
Backblaze B2
Cloud Storage
Backblaze B2 is a cloud storage service that provides scalable object storage at 1/4th the cost of Amazon S3. The service offers robust APIs, CLI tools, and integrations with various applications, allowing developers and businesses to store and retrieve any amount of data. It features strong durability, native encryption, and lifecycle rules for data management.
Banana.dev
AI Cloud Infrastructure
Banana.dev was a cloud platform that enabled developers to deploy and scale machine learning models on serverless GPU infrastructure with minimal configuration. It provided a simple API-based interface for running inference workloads, allowing teams to avoid managing their own GPU servers. The service shut down in 2023 as the team pivoted or wound down operations.
Baseten
AI Cloud Infrastructure
Baseten is a machine learning infrastructure platform that enables developers and ML engineers to deploy, serve, and scale AI models in production. It provides tools for building model pipelines, creating model-backed applications, and managing inference workloads with support for popular frameworks like PyTorch, TensorFlow, and Hugging Face. Baseten focuses on simplifying the MLOps workflow by offering features such as autoscaling, GPU support, and a Python-native SDK called Truss for packaging and deploying models.
Brevo
Email Marketing
Brevo (formerly Sendinblue) is an all-in-one digital marketing platform that helps businesses build and grow relationships with their customers. The platform offers comprehensive solutions including email marketing, SMS marketing, chat, CRM, and marketing automation tools. Brevo serves over 500,000 businesses worldwide with a focus on making sophisticated marketing tools accessible and user-friendly for companies of all sizes.
CoreWeave
AI Cloud Infrastructure
CoreWeave is a specialized cloud provider focused on GPU-accelerated computing, offering large-scale infrastructure optimized for AI/ML workloads, visual effects rendering, and high-performance computing. The company operates one of the largest fleets of NVIDIA GPUs in the cloud, providing on-demand access to compute resources through Kubernetes-based orchestration. CoreWeave went public on the Nasdaq in March 2025 and serves major AI companies, enterprises, and research institutions requiring massive parallel compute capacity.
Crusoe
AI Cloud Infrastructure
Crusoe is an AI cloud infrastructure company that provides purpose-built cloud computing services optimized for AI workloads, including GPU clusters for training and inference. Originally founded as Crusoe Energy Systems, the company pivoted to focus on sustainable AI cloud computing, leveraging stranded and flared natural gas to power data centers, reducing carbon emissions compared to traditional grid-powered facilities. Crusoe offers high-performance computing resources tailored for machine learning, generative AI, and large-scale model training, positioning itself as an environmentally conscious alternative to hyperscale cloud providers.
DigitalOcean App Platform
Platform as a Service (PaaS)
DigitalOcean App Platform is a Platform-as-a-Service (PaaS) offering that automates infrastructure management and deployment of applications. It enables developers to build, deploy, and scale applications by directly connecting to GitHub repositories, with automatic builds and deployments upon code changes. The service handles all infrastructure management, including SSL certificates, CDN, and scaling, allowing developers to focus solely on their code.
FluidStack
AI Cloud Infrastructure
FluidStack is a cloud GPU infrastructure provider that aggregates underutilized GPU capacity from data centers worldwide to offer on-demand and reserved GPU compute at competitive prices. The platform enables AI companies, researchers, and developers to access large-scale GPU clusters for training and inference workloads, including support for high-performance interconnects like InfiniBand. FluidStack differentiates itself by sourcing capacity from a distributed network of partner data centers, providing cost-effective alternatives to hyperscale cloud providers for AI/ML workloads.
Fly.io
Platform as a Service (PaaS)
Fly.io is a platform that allows developers to deploy applications closer to their users by running them in micro-VMs on a global network of servers. It transforms Docker containers into micro-VMs that can run anywhere in the world, providing better performance through edge computing and simplified deployment processes. The platform specializes in running full-stack applications globally with minimal latency.
Freshdesk
Customer Support
Freshdesk is a cloud-based customer support software that provides businesses with a comprehensive helpdesk solution. It enables companies to streamline their customer service operations through multiple channels including email, phone, chat, and social media. The platform offers features like ticket management, automation, knowledge base, and analytics to help businesses deliver efficient customer support at scale.
Helicone
LLM observability
Helicone is an open-source LLM observability and monitoring platform that allows developers to log, monitor, and debug their large language model applications with a single line of code. It provides features such as request logging, cost tracking, prompt management, caching, and rate limiting for AI applications built on top of providers like OpenAI, Anthropic, and others. Helicone is designed to help teams gain visibility into their AI usage, optimize performance, and reduce costs in production environments.
Heroku
Platform as a Service (PaaS)
Heroku is a cloud platform as a service (PaaS) that enables companies to build, deliver, monitor and scale applications. The platform supports several programming languages and allows developers to deploy, manage, and scale modern apps without having to manage the underlying infrastructure. Heroku was acquired by Salesforce in 2010 and has since become one of the most popular PaaS solutions for web application deployment.
Intercom
Customer Support
Intercom is a customer messaging platform that helps businesses communicate with customers through their apps, websites, social media and email. The platform combines customer data with behavior-based messaging to help companies engage and support their customers through conversational, messenger-based experiences. It offers features like live chat, help center articles, product tours, and customer support inbox management tools.
Lambda Labs
AI Cloud Infrastructure
Lambda Labs (also known as Lambda) is a cloud computing and hardware company specializing in GPU-based infrastructure for AI and machine learning workloads. The company offers on-demand and reserved GPU cloud instances, as well as on-premise GPU servers and workstations, designed for training and deploying deep learning models. Lambda serves researchers, startups, and enterprises seeking high-performance compute at competitive pricing compared to hyperscale cloud providers.
Langfuse
LLM observability
Langfuse is an open-source LLM engineering platform that provides observability, analytics, and monitoring tools for AI applications built on large language models. It enables developers to trace LLM calls, evaluate model outputs, manage prompts, and debug production issues through a comprehensive dashboard and SDK integrations. The platform supports popular frameworks like LangChain, LlamaIndex, and OpenAI, and can be used as a cloud-hosted service or self-hosted deployment.
Loops
Email Marketing
Loops is an email marketing platform designed specifically for software companies and startups. It provides a complete solution for sending automated emails, newsletters, and transactional messages with features like visual email builder, advanced segmentation, and analytics. The platform specializes in helping companies create personalized email experiences while maintaining high deliverability rates.
Mailchimp
Email Marketing
Mailchimp is an all-in-one marketing platform for small businesses. The company provides email marketing, marketing automation, customer relationship management, and other marketing services to help businesses grow. Originally founded as a web design agency, Mailchimp has evolved into a leading marketing automation platform that was acquired by Intuit in 2021 for $12 billion.
MailerSend
Email Marketing
MailerSend is a transactional email service provider that offers a complete email delivery infrastructure. The platform provides features like email API, drag & drop email builder, templating system, detailed analytics, and advanced email validation. It focuses on delivering high deliverability rates and comprehensive tools for managing and tracking email campaigns.
Mailgun
Email Marketing
Mailgun is a transactional email API service that enables developers to send, receive, and track emails through their applications using RESTful APIs. The service provides powerful email validation, tracking, and analytics features, along with SMTP integration and detailed logs for debugging. Mailgun specializes in handling large volumes of automated emails including notifications, confirmations, and marketing communications.
Mailjet
Email Marketing
Mailjet is a cloud-based email delivery and tracking platform that enables businesses to send marketing and transactional emails. The service provides features for email automation, template design, A/B testing, and advanced analytics for monitoring email performance. As part of Sinch, Mailjet offers comprehensive APIs and SMTP relay services for developers while maintaining user-friendly email marketing tools for marketers.
Modal
AI Cloud Infrastructure
Modal is a cloud infrastructure platform that allows developers and data scientists to run code in the cloud without managing servers or infrastructure. It provides a Python-native interface for running serverless functions, training machine learning models, and deploying AI applications with on-demand GPU and CPU compute. Modal handles scaling, containerization, and dependency management automatically, enabling teams to go from local code to production cloud workloads with minimal configuration.
Netlify
Platform as a Service (PaaS)
Netlify is a web development platform that offers hosting and serverless backend services for web applications and static websites. It provides continuous deployment from Git across a global application delivery network, serverless form handling, and integration with various build tools and content management systems. The platform automates the process of building, deploying, and managing modern web projects.
Omnisend
Email Marketing
Omnisend is an ecommerce-tailored email & SMS marketing automation platform that helps online sellers create omnichannel marketing campaigns. The platform enables businesses to combine email, SMS, push notifications, and other channels into seamless automation workflows, with a particular focus on ecommerce integration and customer segmentation. It offers advanced features like pre-built automation workflows, dynamic email content, and comprehensive analytics specifically designed for online retailers.
Onfido
Identity Verification
Onfido is an identity verification and authentication platform that helps businesses verify people's identities using document verification, biometric verification, and background checks. The company uses AI and machine learning to verify government IDs and match them to facial biometrics, enabling businesses to onboard customers remotely while preventing fraud and maintaining regulatory compliance.
OpenPanel
Cookieless Analytics
OpenPanel is a developer tool that provides a self-hosted control panel for managing cloud infrastructure and applications. It offers a modern, open-source alternative to traditional control panels, allowing developers to manage their servers, databases, and applications through a clean web interface while maintaining full control over their infrastructure.
Paperspace
AI Cloud Infrastructure
Paperspace is a cloud computing platform specializing in GPU-accelerated virtual machines and machine learning infrastructure, enabling developers and data scientists to build, train, and deploy AI/ML models at scale. It offers products including Gradient, a MLOps platform for running Jupyter notebooks and ML pipelines, and Core, which provides on-demand GPU cloud instances. Paperspace was acquired by DigitalOcean in 2023, integrating its GPU cloud capabilities into DigitalOcean's broader cloud services portfolio.
Plausible
Cookieless Analytics
Plausible Analytics is an open-source, privacy-friendly alternative to Google Analytics. It provides simple and lightweight website analytics without using cookies and while being fully compliant with GDPR, CCPA, and PECR. The service focuses on essential metrics without collecting personal data, offering a more ethical approach to web analytics.
PostHog
Cookieless Analytics
PostHog is an open-source product analytics platform that helps companies understand user behavior. It provides features like event tracking, session recording, feature flags, and A/B testing, allowing teams to self-host their analytics infrastructure and maintain complete data control. The platform is designed to be a privacy-focused alternative to traditional product analytics tools.
Postmark
Email Marketing
Postmark is a transactional email delivery service that helps businesses send and track application emails, ensuring they reach users' inboxes reliably and quickly. The service specializes in delivering time-sensitive emails like password resets, welcome messages, and notifications with detailed analytics and delivery monitoring. Postmark is known for its robust infrastructure and high deliverability rates, making it popular among developers and businesses requiring dependable email delivery.
Railway
Platform as a Service (PaaS)
Railway is a cloud platform that provides infrastructure and deployment solutions for developers. It offers a modern platform-as-a-service (PaaS) that allows developers to instantly deploy their code and databases without dealing with complex infrastructure configuration. The platform automates DevOps tasks and provides integrated services like databases, environment management, and monitoring tools.
Render
Platform as a Service (PaaS)
Render is a unified cloud platform that helps developers and businesses build and run their apps and websites. It offers an alternative to traditional cloud infrastructure providers by automating deployments, scaling, and management of applications and databases with zero DevOps. The platform supports various programming languages and frameworks while providing features like automatic SSL, CDN, DDoS protection, and private networks.
Replicate
AI Cloud Infrastructure
Replicate is a cloud platform that allows developers to run open-source machine learning models via a simple API without requiring deep ML infrastructure expertise. It hosts thousands of community-contributed and official models spanning image generation, language processing, video, and audio tasks. Replicate also enables users to fine-tune models and deploy their own custom models at scale using its managed infrastructure.
Resend
Email Marketing
Resend is a developer-first email service provider that offers a modern email API and infrastructure. The platform enables developers to send transactional emails with features like high deliverability, real-time analytics, and webhook support. It provides SDKs for multiple programming languages and focuses on delivering a reliable email infrastructure with developer experience at its core.
Runpod
AI Cloud Infrastructure
RunPod is a cloud computing platform that provides on-demand GPU instances for AI, machine learning, and deep learning workloads at competitive prices. The platform offers both serverless GPU computing and dedicated pod deployments, enabling developers and researchers to run inference, fine-tuning, and training jobs without managing infrastructure. RunPod also features a marketplace where GPU owners can rent out their hardware, creating a distributed network of compute resources.
SendGrid
Email Marketing
SendGrid is a cloud-based email delivery platform that enables businesses to send transactional and marketing emails. The service manages various aspects of email communication including delivery, scaling, and real-time analytics while providing APIs that make custom integration possible. SendGrid was acquired by Twilio in 2019 for $3 billion and continues to be a leading provider of email infrastructure services.
Sequenzy
Email Marketing
Sequenzy is a software platform that helps businesses automate their digital operations and workflows. The company provides AI-powered process automation solutions that enable organizations to streamline their business processes, reduce manual work, and improve operational efficiency. Their technology focuses on intelligent document processing and workflow automation for enterprise clients.
Sumsub
Identity Verification
Sumsub is an identity verification platform that provides KYC/AML compliance solutions for businesses worldwide. The platform offers automated identity verification, document validation, face authentication, and fraud prevention through AI-powered technology. Their solution helps companies onboard customers safely while meeting regulatory requirements across different jurisdictions.
Together AI
AI Cloud Infrastructure
Together AI is a cloud platform that enables developers and enterprises to run, fine-tune, and deploy open-source large language models (LLMs) at scale with high performance and cost efficiency. The platform provides access to a wide range of open-source models including LLaMA, Mistral, and others through a unified API, along with tools for custom model fine-tuning and inference optimization. Together AI also conducts AI research and has developed its own inference infrastructure designed to deliver fast and affordable generative AI capabilities.
Vast.ai
AI Cloud Infrastructure
Vast.ai is a decentralized cloud GPU marketplace that connects individuals and businesses who need GPU compute resources with hosts who have idle GPU hardware available for rent. The platform allows users to rent GPU instances at significantly lower prices than traditional cloud providers by aggregating consumer and data center GPUs from around the world. Vast.ai supports a wide range of use cases including machine learning training, inference, rendering, and other compute-intensive workloads.
Vercel
Platform as a Service (PaaS)
Vercel is a cloud platform for static sites and frontend frameworks that enables developers to host websites and web applications with zero configuration. It provides automatic deployments, serverless functions, and a global edge network optimized for frontend projects. The platform is especially known for its seamless integration with Next.js and other modern web frameworks.
Veriff
Identity Verification
Veriff is a global identity verification provider that enables organizations to build trust with their customers through intelligent, accurate, and automated online IDV. Their AI-powered identity verification platform can analyze thousands of technological and behavioral variables in seconds, matching people to more than 10,000 government-issued IDs from over 190 countries.
Zendesk
Customer Support
Zendesk is a customer service software company that provides a cloud-based help desk management solution. Their platform includes support ticketing, self-service options, and customer messaging tools that help businesses provide better customer support. The software enables companies to track, prioritize, and solve customer support tickets while providing customers with support across multiple channels including email, web, phone, and social media.