Sequin
Sequin, founded in 2020 and headquartered in the United States, is an infrastructure company that provided a real-time, bidirectional sync between SaaS APIs and a user's database, allowing developers to interact with data from services like Salesforce, HubSpot, and Airtable using standard SQL.
Profile
Sequin synced data from SaaS APIs into a developer's own Postgres database, enabling them to read and write that data using SQL instead of REST API calls.
Sequin, founded in 2020 and headquartered in the United States, is an infrastructure company that provided a real-time, bidirectional sync between SaaS APIs and a user's database, allowing developers to interact with data from services like Salesforce, HubSpot, and Airtable using standard SQL. The company's core product abstracted away the complexity of API integration—handling rate limits, pagination, and authentication—so that developers could read and write to external data sources as if they were local Postgres tables. Sequin's website prominently featured a shutdown notice dated October 23, 2025, indicating the company ceased operations.
No funding rounds, revenue figures, or headcount data were found in the provided research dossier. The company's customer base appeared to consist of engineering teams, with a testimonial from Bob Lauer, Principal Engineer at Bloomtech, praising the product. Sequin's pricing page was not fetched, but the company's value proposition centered on speed and simplicity for developers building integrations.
The shutdown notice suggests the company was unable to achieve sustainable product-market fit or secure ongoing financing, a common fate for developer-tooling startups in a competitive market. No recent news articles or financial results for Sequin were found in the dossier, which instead contained unrelated earnings reports for Sequans Communications, Dexcom, and Sleep Number.
Who buys this
- Engineering teams building custom integrations with Salesforce, HubSpot, or Airtable
- Developers needing to join SaaS data with internal database tables in a single query
- Companies wanting to avoid building and maintaining their own API sync infrastructure
Strengths and what to watch
Strengths
- Eliminated the need for developers to handle API rate limits, pagination, and authentication manually
- Allowed real-time bidirectional sync, with backfilling of historical data and ongoing change tracking
- Provided a unified SQL interface across multiple SaaS platforms, enabling cross-platform JOINs
Watch for
- Company shut down on October 23, 2025, per its own website, indicating failure to sustain operations
- No disclosed funding rounds or revenue figures, suggesting the company may have been bootstrapped or undercapitalized
- Dependence on a single product category (API-to-database sync) in a competitive space with incumbents like Fivetran and Airbyte
Key Information
- Industry
- Data Integration
- Founded
- 2020
- Headquarters
- United States
Frequently Asked Questions
What was Sequin and what did it do?
Sequin was an infrastructure company founded in 2020 that synced data from SaaS APIs like Salesforce and HubSpot into a developer's own Postgres database. It allowed developers to read and write that data using SQL instead of REST API calls.
Why did Sequin shut down?
Sequin shut down on October 23, 2025, per its website. The company likely failed to achieve sustainable product-market fit or secure ongoing financing, a common challenge for developer-tooling startups in a competitive market with no disclosed funding rounds.
What were Sequin's main features for developers?
Sequin provided real-time bidirectional sync between SaaS APIs and a user's database. It handled rate limits, pagination, and authentication automatically, enabling developers to read and write to external data sources as if they were local Postgres tables.
Which SaaS integrations did Sequin support?
Sequin supported integrations with Salesforce, HubSpot, and Airtable, as listed on its integrations page. This allowed developers to sync data from these platforms into their Postgres database and perform cross-platform JOINs using standard SQL.
Who was Sequin's target customer?
Sequin targeted engineering teams building custom integrations with Salesforce, HubSpot, or Airtable. It also served developers needing to join SaaS data with internal database tables in a single query and companies wanting to avoid building their own API sync infrastructure.
What are alternatives to Sequin for API-to-database sync?
Alternatives to Sequin include Fivetran and Airbyte, which are incumbents in the API-to-database sync space. These tools offer similar functionality for syncing SaaS data to databases, though they may have different pricing and feature sets compared to Sequin's Postgres-focused approach.
Sources
- sequin.io — Company shutdown notice, product description, customer testimonial from Bloomtech
- docs.sequin.io — Product documentation and quickstart guide
- sequin.io — List of supported integrations (Salesforce, HubSpot, Airtable)
- sequin.io — Pricing page (not fetched, but referenced as part of site structure)