/Companies

Upflow

YC W20

New York City, US · Founded 2018 · 50 employees · 11 known investors

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Upflow provides financial relationship management software that helps B2B finance teams optimize cash flow and accelerate collections through dashboards, payment automation, and integrated workflows. The platform offers live financial forecasting, automated payment reminders, and modern payment options to reduce days sales outstanding and improve customer relationships.

Also known as Upflow.io

Enterprise SoftwareFintechSaaSFranceEuropePartly Remote

Founders & leadership· Y Combinator alumni (W20)

Upflow was founded in 2018 by Barnaby Malet and Alex Louisy.

BMBarnaby Malet
Barnaby MaletCo-founder & Board MemberBarnaby Malet studied computer science at Imperial College London and is a two-time YC founder. He previously served as cofounder, CTO, and CPO at Upflow (W20) before founding machine0 (S26).
ALAlex Louisy
Alex LouisyCo-founder, CEOFounder and CEO of Upflow, which provides financial relationship management software for B2B companies to optimize cash flow and collections.
AL
Alexandre LouisyFounder
JL
Jean-Malo Le DreffProduct Manager
AF
Aleks FaureDesign
RI
Robin IssSales Team Lead
MD
Morgane DalbergueRecruiter
AD
Antoine Dumas-MartinSenior Recruiterformer
VM
Victoire Marty-SorelTalent Acquisition Managerformer
FR
Francesca RodriguezPeople Operation Managerformer

Investors · 11

Funding

SEC filings, press & company announcements

$15M disclosed across 1 of 2 rounds · 2021

Source: company announcements and press reports — follow each round's link for the claim.

Company profile

researched Aug 2026

Upflow supplies software for business-to-business finance teams covering accounts receivable and, as positioned on its own site, broader "financial relationship management." The product groups functionality into cash-flow measurement, collections processing, and customer payment enablement, with the stated aim of converting revenue into collected cash while maintaining customer relationships.

Cash-flow analysis is delivered through live dashboards, financial forecasting, and real-time accounts receivable insights, including days sales outstanding tracking. Collections features include automated, personalized payment reminders and workflows for collaborating with internal stakeholders on overdue invoices, with performance framed around reducing DSO and improving the collections effectiveness index (CEI). On the payment side, Upflow offers a self-service payment experience for customers, multiple payment methods, automatic cash application, and an autopay option that charges invoices on their due date.

Business model

Upflow sells software to finance teams, offering a free "Discover" plan alongside plans presented through a sales-led demo process.

▸Full profile — market position, technology, go-to-market

Market position

Upflow positions itself as a replacement for spreadsheet-based accounts receivable management, and describes its user base as B2B finance teams.

Technology

The platform provides live dashboards, forecasting, automated reminder workflows, automatic cash application, and autopay. It integrates with customers' existing invoicing and accounting tools and exposes a public API.

Go-to-market

The company markets through demo requests, a virtual product tour, and a free self-serve tier, supported by customer testimonials such as one from a controller at Front.

B2B finance teams, including controllers at companies serving both SMB and enterprise customers.

Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
HeadcountAug 202692

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Founder mafia

3 people who came through Upflow went on to found or lead other companies.

Related companies · 10

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Companies working in the same space as Upflow.

Legal entities · 1

corporate structure
Upflow, Inc.

In the news

▸Research sources · 1

primary sources listed

1 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Upflow do?
Upflow is a financial relationship management platform that helps B2B finance teams collect receivables and manage cash flow.
Who founded Upflow?
Upflow was founded by Barnaby Malet, Alex Louisy in 2018.
Who are Upflow's investors?
Upflow's investors include Kima Ventures, Lorimer Ventures, Siesta Ventures, Y Combinator, 9Yards Capital, Altaclub VC, AltaIR Capital, Expeditions and 3 more.
How much funding has Upflow raised?
Upflow has disclosed $15M raised across 1 of its 2 known rounds.
Where is Upflow headquartered?
Upflow is headquartered in New York City, US.