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Opn
Founded 2013 · 438 employees on LinkedIn · 9 known investors
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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.
Investors · 9
How we know: open dataset · 500 Global portfolio 2026-08 · Not right? Tell us
How we know: Golden Gate Ventures's portfolio page · funding news · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Mars Growth Capital's portfolio page · Not right? Tell us
How we know: open dataset · 5k.vc investor directory · Not right? Tell us
How we know: funding news · thebridge.jp · Not right? Tell us
How we know: thebridge.jp · Not right? Tell us
How we know: funding news · Not right? Tell us
Also in the syndicate · 1
Funding
SEC filings, press & company announcements- Undisclosed amountseries B++ roundOct 2018
Global Brain, Mitsui Fudosan, SMDV
Source ↗
Source: company announcements and press reports — follow each round's link for the claim.
Company profile
researched Aug 2026Omise (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 reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
▸Research sources · 1
primary sources listed
- Omiseopn.ooo · web
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, East Ventures, Global Brain, SMDV, Sumitomo Mitsui Banking Corporation.