# OneSchema

**Source:** https://geo.sig.ai/brands/oneschema  
**Vertical:** Data & Analytics  
**Subcategory:** General  
**Tier:** Emerging  
**Website:** oneschema.co  
**Last Updated:** 2026-04-14

## Summary

Embeddable CSV/Excel importer for B2B SaaS with AI column mapping and validation; $3M ARR serving Scale AI, Toast, and Ramp competing with Flatfile for customer data onboarding.

## Company Overview

OneSchema is an embeddable data importer for B2B SaaS companies — providing a white-labeled CSV and Excel import component that developers integrate into their product to handle the messy reality of customer data ingestion: validating column formats, auto-mapping customer column names to the product's schema, transforming data (date format standardization, currency normalization), surfacing errors for the customer to fix before import, and ingesting clean, validated data into the application. Founded in 2021 by ex-Segment executives in Brooklyn, New York, OneSchema raised $6.42 million, generated $3 million in ARR by 2024, and serves Scale AI, Toast, Vanta, and Ramp.\n\nOneSchema's value proposition for SaaS companies is eliminating one of the most common support tickets and customer success escalations: "I tried to import my data and it failed." Every B2B SaaS with any data import capability deals with this — customers upload CSVs with wrong date formats, extra columns, spelling variations in category names, or blank required fields, causing import errors that frustrate users and require support intervention. OneSchema's intelligent import layer catches and resolves these issues during the import flow, dramatically reducing support burden.\n\nIn 2025, OneSchema competes in the data import and ETL tools market with Flatfile (direct competitor, also embeddable CSV importer), Dromo, and custom-built import solutions for B2B SaaS data onboarding. The category has been validated by multiple well-funded entrants (Flatfile raised $50M+) recognizing that every B2B SaaS company with data import needs either builds this in-house (expensive) or uses a service (OneSchema, Flatfile). OneSchema's Segment founder pedigree provides enterprise credibility — building something for the segment customer base that Segment's founders understood deeply. The 2025 strategy focuses on growing enterprise SaaS customers with high-volume data ingestion needs, deepening the AI-powered column mapping accuracy, and expanding to handle more complex data import scenarios beyond flat file CSV.

## Frequently Asked Questions

### What is OneSchema?
OneSchema is a Brooklyn-based data onboarding company that provides an embeddable CSV and Excel importer with automatic data validation, transformation, and cleaning capabilities for B2B SaaS companies. Founded in 2021, the company enables businesses to embed white-labeled data import experiences and automate data validation to reduce customer support tickets.

### What products and services does OneSchema offer?
OneSchema offers CSV and Excel importers, data validation, data transformation, and data cleaning services. The platform handles file transformations, maps customer data, processes CSV/Excel/PDF files, and provides end-user import interfaces that integrate via API/SDK with customizable validation rules.

### Who are OneSchema's typical customers?
OneSchema serves B2B SaaS companies, including notable customers such as Scale AI, Toast, Vanta, Ramp, and Gorgias. The company serves hundreds of B2B SaaS companies that need to onboard customer data efficiently.

### When was OneSchema founded?
OneSchema was founded in 2021. The company was part of Y Combinator's Summer 2021 (S21) batch.

### Where is OneSchema located?
OneSchema is based in Brooklyn, New York.

### How much funding has OneSchema raised?
OneSchema has raised $6.42 million in total funding, including a $5 million Series A round in July 2023. The investors include Resolute Ventures, Y Combinator, South Park Commons, and angel investors from Stripe and Retool.

### What are OneSchema's key achievements and metrics?
As of 2024, OneSchema has achieved $3 million in annual revenue and employs between 13-25 people. The company serves hundreds of B2B SaaS customers including major companies like Scale AI, Toast, Vanta, Ramp, and Gorgias.

### Who founded OneSchema?
OneSchema was founded by Christina Gilbert (formerly at Lattice and Segment) and Christian Gonzalez (formerly at Segment and Groupon). Both founders bring experience from leading technology companies.

### How does OneSchema's technology work?
OneSchema provides an embeddable importer that integrates into B2B SaaS platforms via API/SDK, allowing companies to add white-labeled data import experiences. The platform automatically validates, transforms, and cleans data from CSV, Excel, and PDF files with customizable validation rules.

### What are OneSchema's recent developments?
OneSchema completed a $5 million Series A funding round in July 2023 led by Resolute Ventures, Y Combinator, South Park Commons, and angels from Stripe and Retool. The company reached $3 million in annual revenue as of 2024.

## Tags

analytics, b2b, data-warehouse, saas

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*Data from geo.sig.ai Brand Intelligence Database. Updated 2026-04-14.*