Credit Card/Payment Processors

Cayan offers both cost-plus and bundled pricing for its credit card processing services.
With 24/7 support and good industry ratings, Cayan is a solid option for credit card and mobile payment processing. Very small businesses with small transactions should consider an aggregator.

Online invoicing and digital payments platform.
Due provides numerous tools, but also delivers a wealth of information through its blog on issues, trends, and solutions that are at the top of mind for every entrepreneur related to technology, compliance, marketing, operations, and security. The company also offers numerous guides, e-books, and other content-based resources.

Helcim offers a full gamut of services and equipment for both storefront and online businesses.
They distinguish themselves from many other providers by offering fair contract terms, exclusive interchange-plus pricing (which they call Cost+), and reasonable account fees – all of which they fully disclose on their website. Pricing structure doesn’t work well for small businesses processing less than $1,500 per month.

Mobile, desktop and point-of-sale (POS) options
Intuit prides itself on providing a full ecosystem for customers looking for a payment processing service. That means not just processing credit card and mobile payments from customers, but also paying employees and contractors, collecting on invoices, dealing with taxes and compliance, and, of course, balancing the books. It’s a good choice if you want the convenience of automatically reconciling transactions, and managing the finances of your entire business

Credit card processor that caters to all business sizes.
Payline is an independent sales organization (ISO) but also acts as a financial services platform (FSP) for its largest clients and an aggregator for its smallest. Payline offers 24/7 support by phone and email. It also has an easily accessible FAQ section on its website as well as documentation for developers who want to access Payline’s application programming interface (API).

Uses a wholesale subscription model. Wholesalers pass on the fixed fee to merchants, with a small transaction fee, and a relatively low monthly subscription fee. Payment Depot is good for merchants that process at least $10,000 per month.

Square is known for its transparent flat fees. Rather than charging cost-plus or interchange plus pricing, it uses a flat fee structure, so every merchant pays the same regardless of size, though custom pricing is available by request for vendors who pull in more than $250,000 per year. While Square is one of the few affordable options for micro-businesses, such as farmers’ market vendors, it’s also worth considering for higher volume business that process smaller transactions. (Aggregator)