/Companies

Opn

Founded 2013 · 438 employees on LinkedIn · 8 known investors

Find your way into Opn

Each arrow is one introduction. Sign up to fill in the first one.

599 people can intro you to Jun

Ask Vinnie Lauria to introduce you to Jun Hasegawa

You →Vinnie · together at Omise →Jun

3 people can intro you to Ezra

Ask Jamie Chen to introduce you to Ezra Don Harinsut

You →Jamie · together at Omise →Ezra

Sign up to find every way you can get introduced to Opn

  • Your email: who you already know at Opn, and who your contacts know
  • 2nd- and 3rd-degree connections: people you know who worked, studied or invested with the Opn team
  • Your LinkedIn: the connections who can make the intro for you

We rank every route by how warm it is, so you raise on warm intros instead of cold emails.

Omise AI provides payment APIs and software that let businesses accept payments and financial institutions build financial products, including tools for payment processing, analytics, and automation across multiple programming languages. It offers payment orchestration that connects to multiple payment gateways across Asia and North America.

Also known as Omise Co., Ltd. · Opn

Founders & leadership

Opn was founded in 2013 by Ezra Don Harinsut and Jun Hasegawa.

ED
Ezra Don HarinsutCOO/Co-founder2013–2025Ezra Don Harinsut served as President of Omise until April 2025, where he oversaw the development of payment APIs and processing systems including PCI DSS 3.0-compliant infrastructure and multi-language libraries for payment integration. He has spent over two decades working in management, startups, and entrepreneurship focused on payment solutions.
JH
Jun HasegawaCEO / Founder / Representative DirectorJun Hasegawa is co-founder of Omise, a payment platform serving Southeast Asia that he established in Thailand in 2013 with Ezra Don Harinsut. He previously worked as a systems engineer and web developer in Seattle during the late 1990s, and founded several earlier ventures including the social network LIFEmee.

Investors · 8

Also in the syndicate · 1

Mitsui Fudosan

Funding

SEC filings, press & company announcements

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

Company profile

researched Aug 2026

Omise (operating at opn.ooo as Omise Co., Ltd.) supplies payment software and APIs used by merchants to accept payments online and by platforms and financial institutions to build and run payment infrastructure. Its merchant-facing products include online checkout with one-click payment, local alternative payment methods (APMs), Payment Links+ for collecting payments through any channel, transaction management with real-time data, customized reporting, a dashboard with refund handling, and Omise AI, an AI-embedded layer across its solutions.

For platforms and banks, the company offers Payment Orchestration for unified payment management across multiple gateways, PayFac for embedded payments, and Acquiring processing technology. It also sells a professional services / fintech consulting practice that supplies engineers to build digital platforms. Developer-facing capabilities are exposed through a RESTful API with documented objects such as charges, transfers, recipients and recurring schedules, and client libraries in multiple programming languages, covering payment processing, analytics and automation.

Business model

Omise sells payment acceptance and payment infrastructure software to businesses, with published pricing, alongside a professional services engagement model in which its engineers help clients build digital platforms.

Traction

Publicly cited customers include SHOPLINE, NocNoc, Monomax, Soi Dog Foundation, GoWabi, Coway, McDonald's Thailand, Freshket and Pomelo, spanning SaaS/e-commerce platforms, streaming, F&B, booking and nonprofit sectors.

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

Market position

Positions itself as a payment technology provider serving both merchants and payment infrastructure operators (banks, platforms), competing on breadth of local payment methods, orchestration reach and developer tooling.

Technology

A RESTful payment API with comprehensive documentation and SDKs in multiple programming languages, supporting charge creation, transfers, recipient management and recurring schedules; the company states 99.99% service uptime and offers over 100 ways of accepting payments globally, with AI-embedded features branded Omise AI.

Go-to-market

Direct sales (contact sales) combined with self-service onboarding ("get started" / free trial), developer documentation, published pricing, a help center, and customer stories used as references.

Merchants accepting online payments (e-commerce, food and beverage, streaming, booking and nonprofit organizations), plus platforms, banks and financial institutions needing acquiring, embedded payments and orchestration; developer teams are a key integration audience.

Geography

Payment Orchestration connects to multiple payment gateways across Asia and North America; referenced customers include Thailand-focused brands such as McDonald's Thailand, NocNoc, Monomax, GoWabi, Freshket, Pomelo and Soi Dog Foundation.

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

Key figures

latest reported
HeadcountAug 2026438
Service uptimeJan 202699.99%
Ways of accepting payments globallyJan 2026100 payment methods/channels

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

▸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 Opn do?
Omise provides payment APIs and orchestration software for merchants, platforms and banks in Asia and North America.
Who founded Opn?
Opn was founded by Ezra Don Harinsut, Jun Hasegawa in 2013.
Who are Opn's investors?
Opn's investors include 500 Global, Golden Gate Ventures, Mars Growth Capital, SCB 10X, Global Brain, SMDV, Sumitomo Mitsui Banking Corporation.