StackOne

Private

Cambridge, MassachusettsAI, Data & Cloud Infrastructurehttps://stackone.com

Last Round

Series A

May 6, 2025

Total Funding Raised

$23.6M

Momentum Score

25 /100

Company Overview

StackOne is a technology company that offers an API standardization platform, allowing customers to concentrate on core product development while seamlessly integrating their tools and ensuring data security.

Sector

AI, Data & Cloud Infrastructure

Verticals

API Management, Data Integration, Platform-as-a-Service, NLP & Conversational AI

Business Model

B2B

Customer Profile

Subscription SaaS, Usage-Based SaaS

AI Layer

Application

Keywords

unified APIembedded iPaaSSaaS integrationsuniversal APIintegration platformHRIS integrationsATS integrationsCRM integrationsAPI connectorsproduct integrationsembedded marketplaceAI agent integrationreal-time integrationsbi-directional integrationsembeddable UI

Historical Pricing

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Caplight Momentum Score

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StackOne Comps

Public and private peers based on sector, stage, and business model.

Company	Status	Est. Valuation	Rev Multiple
OpenAI	Private	$86.0B	~40x
Cohere	Private	$5.0B	--
Competitor 1	Public	$XX.XB	XXx
Competitor 2	Public	$XX.XB	XXx

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StackOne Funding Rounds

Historical fundraising activity

Round	Date	Amount Raised	Valuation	Investors	Sources
Series A	May 6, 2025
Seed	Mar 5, 2024

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Key People

Founding team and executive leadership

Guillaume Lebedel

Co-Founder CTO

Founding Team

Romain Sestier

Co-founder CEO

Founding Team

StackOne Investors

Notable investors and investment history

Investor	Rounds
Playfair Capital	Seed, Series A
GV	Series A
Portfolio Ventures	Seed
Blissgrowth	Seed
XTX Ventures	Series A
Revenue Syndicate	Seed
Episode 1 Ventures	Series A

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Market signals

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Oct 3, 2025
Added Spotted Zebra, an HR Technology startup, as a customer.
Oct 3, 2025
Added Vizzy, an HR Technology startup, as a customer.

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StackOne Filings

SEC and related filings with document metadata.

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StackOne Filings

SEC and related filings with document metadata.

Frequently Asked Questions

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Firmographic Details

HeadquartersCambridge, Massachusetts

Employee Range57

Year Founded2016

Last FundingMay 6, 2025

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