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Overview
Buf builds an end-to-end platform for API development centered on Protobuf, gRPC, and Kafka. Its main offering is the Buf Schema Registry (BSR), which provides a single view of Protobuf schemas across all repositories, helping teams collaborate on schemas, dependencies, and Software Development Kits (SDKs). Beyond BSR, Buf offers API discovery, documentation browsing, code generation management, and SDK integration through package managers like NPM and Maven, plus breaking change detection to prevent backward-incompatible API changes from reaching production. The platform targets tech teams of all sizes who want to streamline API development and collaboration. It differentiates itself by tying together schema management, code generation, and change tracking in one platform with cross-repo visibility, aimed at reducing outages and speeding workflows. The goal is to simplify and align API development work so teams can build and evolve APIs safely and efficiently.
About Buf
Industries
Data & Analytics
Enterprise Software
Company Size
11-50
Company Stage
Series B
Total Funding
$94.5M
Headquarters
Toronto, Canada
Founded
2020
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Simplify's Take
What believers are saying
- Buf shipped BSR release v1.33.0 on June 25, 2026.
- July 2026 blog activity shows continued product shipping and customer engagement.
- January 2026 workshops and events signal active demand for Protobuf modernization.
What critics are saying
- Buf's last disclosed funding was 2021; no fresh capital signals expansion pressure.
- Open-source buf CLI commoditizes core workflows, weakening BSR upsell conversion.
- If larger cloud registries bundle schema management, Buf's niche shrinks by 2027.
What makes Buf unique
- BSR centralizes Protobuf schemas, docs, dependencies, and compatibility checks.
- Buf CLI standardizes linting, breaking-change detection, and code generation across teams.
- Remote packages and plugins deepen control over Protobuf supply chains.
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Funding
Total Funding
$94.5M
Above
Industry Average
Funded Over
4 Rounds
Tiger Global
Lightspeed Venture PartnersIndustry standards
Benefits
Professional work experience at one of Canada’s fastest growing technology start-ups.
Opportunity to join the team in its early days, take on major responsibility, and make meaningful contributions.
Ability to work as part of an international team coming together to solve real-world engineering problems - Buf employees come from all over the world.
Extremely competitive cash compensation for all employees.
Professional downtown Toronto office for optimal collaboration.
Growth & Insights and Company News
6 month growth
↑ 7%1 year growth
↑ 2%2 year growth
↑ 10%Data Product Marketing leader Clinton Ford joins Buf.
Today, Buf is launching the 1.0 release of its new unified GitHub Action, powered by the Buf CLI.
Today, Buf is launching connect-opentelemetry-go to provide out-of-the-box support for OpenTelemetry instrumentation with connect-go.
Create, maintain and consume Protocol Buffers APIs with our modern Protocol Buffers ecosystem
Today, Buf is launching the release candidate for what Buf now call remote plugins and remote packages.
There are no jobs for Buf right now.
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About Buf
Industries
Data & Analytics
Enterprise Software
Company Size
11-50
Company Stage
Series B
Total Funding
$94.5M
Headquarters
Toronto, Canada
Founded
2020
There are no jobs for Buf right now.
Find jobs on Simplify and start your career today