The Masthead
About Sintrio — a payments platform built for ambitious businesses selling internationally.
Sintrio LLC was founded in 2026 in Cheyenne, Wyoming, with a stubborn conviction: that the global movement of money has been outsourced for too long to systems written for spreadsheets, not for editors. Our work begins where most payment processors stop — at the long tail of foreign currencies, consumption taxes, dispute evidence, and reconciliation. We treat each of these surfaces with the same care a magazine treats its typography.
The result is a payments platform that holds a clear point of view. One API. One reconciliation layer. One contract. One thoughtful interface for the parts of finance most teams would rather not think about. We build for engineering teams who care about the cleanliness of their stack and finance teams who care about the cleanliness of their books.
Mission & Vision
Mission
Help every company process payments seamlessly.
We help every company — of any size — process payments seamlessly, manage compliance effortlessly, and grow across borders. We measure our success in the boredom we deliver to our customers' finance teams.
Vision
Infrastructure that disappears into the work.
Payment infrastructure should be simple, secure, and tuned for global commerce — one API for everything. The best tools recede when the work is in motion. We are building toward that.
The Founder
Eleanor Faulkner, Founder & CEO.
Eleanor spent a decade building payment infrastructure for cross-border SaaS companies before founding Sintrio. She started the company with one mission: write a payments platform the way a careful editor writes a long-form essay — with rigor, restraint, and patience for the parts that matter most.
Under her leadership, Sintrio has grown into a multidisciplinary team of engineers, compliance specialists, and designers obsessed with the small details that make global commerce feel local.
The Calendar
A short, deliberate timeline.
2026
Founded
Sintrio LLC is established in Wyoming with an editorial mandate: build a payments platform that reads like fine craft.
2026
First integrations
Early e-commerce and international payment integrations go live with founding customers across the United States and Europe.
2027
1,000 customers
Targeting one thousand enterprise customers worldwide, with a focus on multi-currency SaaS and cross-border merchants.
The Contents
What we offer.
Global Payment Infrastructure
One API, 49+ countries, 134+ currencies, 20+ local methods.
Fraud Detection & Prevention
AI-driven scoring on every transaction with 99.8% accuracy.
Analytics & Reporting
Cohort, geo, conversion, and revenue intelligence in one view.
Recurring Payments
Subscriptions, dunning, and billing logic without the headaches.
International Tax Compliance
VAT, GST, US sales tax computed, collected, and filed.
Developer API & Tools
SDKs in JavaScript, Python, PHP, Ruby. Documentation built to read.
The Colophon
Company details.
Sintrio LLC
State of formation: Wyoming
2029 Black Jack Loop Num 3574
Cheyenne, WY 82001-7282, USA
contact@sintrio.io
Mon–Fri, 9am–6pm CT
+1 (319) 323-7348
US business hours
privacy@sintrio.io
dpo@sintrio.io
billing@sintrio.io
abuse@sintrio.io
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Contact our team