pmtbox (formerly National Processing)C50
Merchant Account (ISO) · Mid-market and enterprise e-commerce brands wanting payments, fraud scoring and chargeback management from …
Overview
As National Processing this was a well-regarded interchange-plus ISO for small US businesses, with an A+ BBB rating held since 2008 and a rate-lock policy that made it a genuine alternative to flat-rate processors. That company still exists — same founder, same Orem address — but it now trades as pmtbox, sells an enterprise e-commerce payments platform, publishes no pricing, and its old website no longer resolves. If you are an enterprise brand, this is a credible and newly funded option. If you are a small merchant looking for the National Processing everyone recommended, confirm that offering still exists before you plan around it.
Best for: Mid-market and enterprise e-commerce brands wanting payments, fraud scoring and chargeback management from one vendor under a single fee, and willing to negotiate pricing.
Strengths
- + Long operating history: the business started in October 2007 and has held an A+ BBB rating with accreditation since October 2008.
- + A light complaint record for a merchant services provider — 10 BBB complaints across three years, with none closed in the last twelve months.
- + Newly capitalised, with $15 million in seed funding announced on 30 April 2026 led by Tandem Ventures, reported as the largest seed round in Utah in a decade.
- + Bundles payments, fraud scoring and chargeback management under one fee rather than requiring separate fraud vendors, and says it guarantees the transactions it approves.
- + Registered as an ISO/MSP of Commercial Bank of California and Chesapeake Bank, so merchants get a dedicated merchant account rather than an aggregated payfac sub-account.
- + Founder-led continuity through the rebrand — Wayne Hamilton, listed as National Processing's president, is named as pmtbox's CEO and co-founder.
Trade-offs
- – No pricing published anywhere on the pmtbox site — the earlier National Processing rate card, including its widely cited $10/month interchange-plus plans, is no longer verifiable from a primary source.
- – The old nationalprocessing.com domain no longer resolves, so historical product and pricing documentation has simply disappeared.
- – A 1.9 out of 5 Trustpilot score across 69 reviews, in sharp contrast to the A+ BBB rating — complaints centre on unreachable support, difficulty getting statements, and billing continuing after cancellation.
- – The repositioning to enterprise e-commerce leaves it genuinely unclear whether the small-business interchange-plus offering that earned the reputation is still sold.
- – Public identity is fragmented mid-transition: the BBB profile is still under National Processing, LLC, the website entity is Payment Box Inc., and there is no Trustpilot profile under the new name.
- – Roughly 1,300 customers as of April 2026 makes this a small provider by the standards of the acquirers it now competes with.
Fees in detail
- Contract: 10
Standard published rate for a domestic online card payment. Confirm current pricing on pmtbox (formerly National Processing)'s pricing page.
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