What Build.io does

Build.io is a full-stack cloud Platform-as-a-Service (PaaS) founded in 2023 by Lex Siegel, a Linux kernel and Cilium eBPF contributor. The platform enables product teams to deploy applications in minutes via Git-based workflows, with automatic environment provisioning, one-click rollbacks, review apps, integrated CI, and built-in logs and metrics. The core technical differentiator is ownership of the full stack: Build.io runs on its own bare-metal hardware in Tier 3/4 data centers across the US West Coast, Ashburn, Dublin, and Tokyo, with no shared tenancy and no hyperscaler markup. An integrated "To Go" managed add-on marketplace provides instant provisioning of databases (Schema To Go/Postgres, Donkey To Go/MongoDB, Ave To Go/MariaDB, Sequel To Go/SQL Server, Spandex To Go/Elasticsearch/OpenSearch), caching (Cache To Go/Redis), messaging (Mailer To Go), scheduled compute (Cron To Go), and AI inference (Infer To Go, beta). The platform ships with SOC 2 Type II compliance, AES-256/TLS 1.3 encryption, private networking, RBAC, audit logging, and SSO/SAML as standard, and the security team includes CISSP and CREST CRT-certified professionals.

The company targets modern product teams and engineering organizations, with an explicit primary segment of Heroku/Render/AWS migrators served via dedicated migration tooling that auto-detects buildpacks, imports existing apps and configuration, and supports zero-downtime parallel-run cutovers. The customer base of approximately 60 deployments spans enterprise (Saambaa, Baremetrics, UXPin), startup (Adalo, Integrate.io, Iron.io, TrueAbility), and SMB (Shoeboxed, TeamPassword) segments. Revenue is generated through a per-seat Platform subscription ($19/user/month standard with a $9/user/month waitlist lock-in for life, launching Q2 2026), Enterprise tier fixed-price contracts with engineer-led migration support, and a Startup Program with discounted pricing and free credits. Distribution is hybrid: self-serve PLG for the platform tier, sales-assisted enterprise engagement for migrations, and dedicated Japan-led sales through Japan Director John Cross.

On April 23, 2026, Build.io was acquired by ai& Inc., a vertically integrated global AI technology company headquartered in Japan, with founder Lex Siegel continuing in the combined entity. The acquisition positions Build.io within a hardware-to-application AI infrastructure stack with access to ai&'s model portfolio (Qwen, Kimi, GLM). Post-acquisition, Build.io introduced a native AI coding agent in the deployment pipeline, a "bld skills" CLI capability for agent self-discovery, and the Infer To Go managed AI inference service. No venture or growth equity funding rounds are disclosed; prior to acquisition the company had achieved "multi-million-dollar revenue" from approximately 60 real-world deployments.

Name

Build.io

Legal name

Build IO Inc.

Website

https://build.io

Company type

Private

Founded year

2023

Operating status

Operating

Headcount range

1–10 employees

Short description

Build.io is a full-stack cloud PaaS that lets product teams deploy apps via Git workflows on owned bare-metal infrastructure in the US, Europe, and Japan. It serves startups through enterprises, particularly Heroku migrators, and was acquired by ai& Inc. in April 2026.

Ownership category

akta.pro rank

Product category

Platform as a Service (PaaS)

NAICS

Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (5182), Computer Systems Design and Related Services (54151), Computer Facilities Management Services (541513)

SIC

Services-Prepackaged Software (7372), Services-Computer Programming, Data Processing, Etc. (7370)

akta.pro primary industry

Enterprise PaaS (App Runtime & Managed Application Platforms) (HDAEAKAB)

akta.pro secondary industries

AI Application Enablement Platforms (Copilot/Agent Frameworks, SDKs) (HDAEANAJ), Managed Application Platforms (App PaaS & Runtime Services) (HDABAAAD), Developer Tools & DevOps Platform Services (CI/CD, Artifacts, IaC) (HDABAAAI)

Keywords

• Platform as a service
• Cloud deployment platform
• Managed database services
• Bare metal infrastructure
• Ai coding agent

Headquarters

HQ city

San Francisco

HQ country

United States

HQ region

North America

Offices6 records

Markets served

GTM type

B2B

Offering type

Software

Cost components

Infrastructure, Technology or R&D, Personnel, Operations, Marketing or Sales

Revenue model

1. Platform Subscription: Per-user monthly subscription model with tiered pricing. Platform tier launches Q2 2026 at $19/user/month standard rate, with waitlist offering $9/user/month for life. Enterprise tier available with fixed price term contracts and additional support features.
2. Startup Program: Discounted pricing program for startups with free credits to start and scale. Application-based program providing discounted rates as companies grow.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Build.io is a full-stack cloud Platform-as-a-Service (PaaS) that enables product and engineering teams to deploy and operate applications directly from Git repositories without managing infrastructure. The platform runs on owned bare-metal hardware across US, European, and Japanese data centers and bundles automated deployment, review apps, one-click rollback, integrated CI, observability, and a marketplace of instantly provisioned managed data, caching, search, messaging, scheduled task, and AI inference add-ons. A native AI coding agent embedded in the deployment pipeline can write code, configure infrastructure, provision add-ons, and open deployable pull requests from a single prompt.

Product overview

Build.io is a full-stack cloud Platform-as-a-Service (PaaS) designed for modern product teams. The core offering consists of the Build.io Platform for deployment, scaling, and monitoring of applications, augmented by AI Workflows including a native coding agent and AI inference capabilities. The platform is built on owned bare metal infrastructure across US, Europe, and Japan. An integrated marketplace of managed add-on services (branded 'To Go') provides instant provisioning of databases (Schema To Go for PostgreSQL, Donkey To Go for MongoDB, Ave To Go for MariaDB, Sequel To Go for SQL Server), caching (Cache To Go for Redis), messaging (Mailer To Go for transactional email), search (Spandex To Go for Elasticsearch/OpenSearch), scheduled compute (Cron To Go), and AI inference (Infer To Go in Beta). All offerings feature built-in security, SOC 2 compliance, and developer-friendly primitives from rapid prototyping to full-scale production.

Differentiator

Problem solved

Functional benefit

Products and services

• Build.io Platform A full-stack cloud Platform-as-a-Service that enables product teams to deploy, scale, and monitor applications directly from Git repositories without managing infrastructure. Provides Git-to-production deployment, automatic review apps, one-click rollbacks, visual deployment pipeline, integrated CI, built-in logs, metrics, and multi-zone infrastructure on owned bare-metal hardware across the US, Europe, and Japan.
• AI Workflows (Native Coding Agent) A native AI coding agent integrated into the deployment pipeline that understands the environment code runs in, writes code, configures infrastructure, provisions add-ons, and opens deployable PRs from a single natural language prompt. Targeted at product teams building agentic applications on Build.io.
• Schema To Go

Quantifiable outcome

• Deploy code to live app in seconds with no infrastructure configuration
• +3 more outcomes

Named customers9 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

AI capability4 records

Feature5 records

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Netlify: Web hosting and Jamstack PaaS with Git-based deploys, preview deploys, and serverless functions. Targets similar product teams and developer-experience-conscious buyers, with comparable self-serve to enterprise motion.
• Heroku: Salesforce-owned PaaS that pioneered Git-based deployment and the dyno/add-on model Build.io explicitly emulates. Build.io's migration tooling, CLI, and pricing model are designed as drop-in alternatives to Heroku, making this the closest direct comparable.
• Vercel: Frontend cloud and serverless platform for modern web frameworks with Git-based deploys, preview environments, and edge functions. Competes for the same modern product-team persona, though focused on frontend/serverless rather than full-stack containers.
• Fly.io: Application platform running containers close to users with bare-metal hardware globally. Operates its own infrastructure across multiple regions similar to Build.io's owned-metal strategy, targeting latency-sensitive and globally distributed apps.
• Render: Modern unified PaaS offering Git deploys, managed databases, and infrastructure primitives aimed at product teams migrating off Heroku. Build.io calls out Render explicitly in its comparison and migration pages, indicating direct competitive overlap.
• Railway: Developer-focused PaaS with usage-based pricing, instant deploys from Git, and managed Postgres/Redis. Competes head-to-head with Build.io for indie and SMB developer teams seeking Heroku alternatives with simpler pricing.

Broad incumbents

• DigitalOcean App Platform: Managed application platform from DigitalOcean offering Git-based deploys, managed databases, and simple pricing for SMBs. Sits within DigitalOcean's broader cloud portfolio (Droplets, managed DBs, Kubernetes) and competes on simplicity but at smaller scale than AWS/GCP.
• Google Cloud Run: Google's managed container PaaS offering auto-scaling, Git-based deploys, and integrated data services. Competes with Build.io for teams seeking a fully managed serverless-container experience within a hyperscaler ecosystem.
• Amazon Web Services (Elastic Beanstalk / App Runner): Hyperscaler offering multiple PaaS layers (Elastic Beanstalk, App Runner, ECS, Lambda) that compete for the same deploy-and-scale workloads. Build.io's positioning as 'no hyperscaler markup' is directly competitive with AWS's developer-facing managed services.

Emerging players

• Porter: Y Combinor-backed PaaS that runs on customers' own cloud accounts (BYOC), offering Heroku-like DX while leveraging AWS/GCP underlying infrastructure. Competes philosophically with Build.io's developer-experience promise but with a different ownership model for infrastructure.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks4 records

Key highlights6 records

Customer concentration

• Xx.com/buildio_
• LinkedInlinkedin.com/company/build-io

Compliance4 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Build.io