Boost your cashflow by paying your Sigma invoices with Bluechain & American Express
Earn more Amex Rewards, save time and get more control of your cashflow with Bluechain - the smart way to receive and pay all your invoices. Click below to register your interest.

How Bluechain Makes Payments Work For You
Register your interest below, and we will help you setup your account.
Don't have an Amex card? Click here to apply today.
When your statement has been issued you'll get a notification. Choose to pay immediately or schedule it for the due date.
Your Sigma invoice is automatically paid on the date you selected.


* invoices must still be settled within the agreed payment terms and deadline
Sigma Customers Pricing
For each payment, we currently charge a convenience fee, depending on the payment method used.
Head Of Sales - Dipesh Vaja
Why you’ll love Bluechain
Getting Started Couldn't be Simpler
Here are the steps to take control of paying your invoices.
Click on the request invite button and provide your details. We will be in contact with you to help you get setup.
Once registered, you will receive an email with a link to your online portal.
Log into the portal and pay now or schedule your payments.
That’s it. You’ll now be able to view all your invoices in one convenient dashboard, pay with any credit/debit card and schedule payments for when suits you.
What our customers say
Bluechain has saved us over 3 hours a week in manual work and let us maximise our credit lines with suppliers, plus we got a load of extra points!
Amy Taylor, Head of Finance
MEG
Bluechain just makes good business sense. Having seen how streamlined payments can be, I could never go back to the system offered by my bank.
Andrew Salmon
Business Owner, Rabbithole Cafe
Bluechain provides me with the right mix of control and automation. I can schedule and pay my bills as they come in, and my bookkeeper and Xero are kept up-to-date.
Steve Hazell
Business Owner, NRS Couriers
Using Bluechain reduces our risks as a business while simultaneously allowing us to improve services to our customers and grow our practice.
Karla Hourigan, Crew Leader
MAD Wealth
Bluechain - The Payment App You Can Trust
When it comes to billing, we’re on a mission to make the whole process simple and painless.