NMI (Network Merchants Inc)
Payment Gateway
2.6 / 5.0(208 reviews)
B-
Expert grade
3.5/5
Payment Gateway
Fact-checked October 24, 2025
Founded
2001
Headquarters
1450 American Lane, Suite 1200, Schaumburg, IL 60173, United States
Company size
369 - 580
Website
Visit websiteThe takeB-
Reading Progress0%
4 min read
Chapter 1
Should you choose NMI (Network Merchants Inc)?
The headline take, the audiences it's right (and wrong) for, and the genuine differentiators behind the verdict.
TL;DR
NMI primarily provides a white-label, embedded payments enablement platform (payment gateway) used by ISOs, software vendors (ISVs), and payment facilitators. Their product portfolio includes NMI Payments (gateway), merchant relationship management and onboarding tools, device SDKs and EMV/terminal integrations, fraud prevention extensions, digital wallet support (Apple Pay / Google Pay), Level II/III processing, ACH/eCheck support, tokenization, and hosted checkout options. The platform emphasizes developer SDKs (iOS, Android, Windows, Linux), APIs, a sandbox, and pre-certified processor/device integrations so partners can embed payments into apps and services. NMI +1
Strengths include a wide integration surface (many shopping cart and POS integrations), strong developer resources (API docs, SDKs, sandbox), robust tokenization and security features (PCI/DSS posture), and scale for large partners—NMI claims large transaction volumes and many channel partners. Weaknesses are primarily around merchant-facing pricing and support variability: because NMI often sells through partners and acquirers, merchant fees and onboarding terms are brokered by resellers—this can create inconsistent pricing transparency and uneven support experiences at the merchant level. Public complaint threads (BBB, Trustpilot) typically relate to billing, dispute handling, or partner relationships rather than the core gateway technology itself.
About
NMI (Network Merchants, Inc.) is a mature, ISO/ISV-focused embedded-payments gateway and enablement platform with broad developer tooling and enterprise integrations, but merchant experiences can vary depending on the partner/acquirer relationship.
Pros, cons, and audience
Best for
- ISOs, ISVs, SaaS platforms, high-volume merchants, and businesses that need embedded or white-label payments and strong API/SDK support.
Skip it if you
- small merchants seeking a simple, direct-to-merchant pricing plan from a single processor; merchants who want one predictable retail pricing page rather than reseller-negotiated terms.
Pros
- Highly customizable payment infrastructure
- Strong omnichannel support
- Extensive integration options
- Robust developer tools
- Global reach
Cons
- Merchants still need a separate processor/acquirer
- Pricing can vary widely
- Customer support depends on reseller
- Some features require additional configuration or partners
How we score it
2
Pricing Transparency
5
Feature Set
4
Ease of Use
3
Customer Support
3
Contract Terms
4
Industry Reputation
How we got there
NMI is a mature, well-featured payments platform with strong developer tooling (APIs/SDKs), wide channel support (in-store, online, mobile), and enterprise / ISO-focused features that make it attractive to platforms and ISOs. Their product and engineering capabilities, marketplace integrations, and industry awards are strengths. On the flip side, some independent review channels and local BBB listings show customer complaints and lower ratings — which suggest occasional support or merchant-onboarding friction. Taken together, the company looks technically strong and market-proven but uneven in some customer-experience areas.
Chapter 2
What it costs
Real-world cost at three volumes, plus the rates, fees, payouts, and contract terms that drive them.
What NMI (Network Merchants Inc) actually costs
Estimated annual cost at three realistic processing volumes, using NMI (Network Merchants Inc)’s published online rate plus monthly fees. Real costs vary with average transaction size, chargeback rate, and any negotiated terms.
Small business
$10K/mo volume · ~$75 avg transaction
$3.5K/year
≈ $290/mo · 2.90% effective rate
Growing merchant
$50K/mo volume · ~$100 avg transaction
$17K/year
≈ $1.4K/mo · 2.90% effective rate
High volume
$250K/mo volume · ~$150 avg transaction
$87K/year
≈ $7.3K/mo · 2.90% effective rate
Pricing details
NMI generally does not publish a single, standard merchant processing rate because the gateway is sold through ISOs, processors and platform partners who set the merchant’s final fees. Here are approximate prices we can glean:
Processing Rates
Online Transactions
Card-not-present, e-commerce, and online payments
Not publicly disclosed - varies by processor/ISO
Per transaction
In-Person Transactions
Card-present retail and point-of-sale transactions
Not publicly disclosed - varies by processor/ISO
Per transaction
Keyed Transactions
Manually entered card-not-present transactions
Not publicly disclosed - varies by processor/ISO
Per transaction
International Transactions
Cross-border and foreign currency transactions
Not publicly disclosed - varies by processor/ISO
Per transaction
Fees
Monthly Fee
Not publicly disclosed
Recurring monthly account fee
Setup Fee
Not publicly disclosed
One-time account setup and onboarding fee
PCI Compliance Fee
Not specifically disclosed
Annual PCI DSS compliance and security fee
Statement Fee
Not publicly disclosed
Monthly account statement and reporting fee
Chargeback Fee
Not publicly disclosed
Per-incident chargeback dispute fee
Early Termination Fee
Not publicly disclosed - would depend on the contract with the specific ISO or reseller
Fee for canceling before contract end
Payouts
Standard Payout Time
commonly 1–2 business days for standard ACH/card settlements
Regular deposit schedule to your bank account
Expedited Payout Time
May be available but depend on the acquirer/processor partner and pricing
Faster deposit option (may have additional fees)
Minimum Payout Amount
Determined by the acquiring bank/reseller agreement
Minimum balance required before payout
NMI (Network Merchants Inc) Pricing Calculator
Estimate your monthly costs
Pick a published plan, enter your volume and transaction profile, and we’ll compute the math the same way an underwriter would. Real costs vary with card mix, chargeback rate, and any negotiated terms.
$
$
Estimated Monthly Cost
$0.00
Effective Rate
0.00%
Number of transactions200
Flat all-in rate (interchange built in)
Chapter 3
What you actually get
Products, integrations, payment-type coverage, security posture, and how their support holds up in practice.
Products & Services
GATEWAY
White Label Payment Gateway
Custom pricing based on volume and features
Customizable payment gateway solution that can be branded and resold by partners.
Key Features
- API integration
- Virtual terminal
- Recurring billing
- Fraud prevention
- Multi-currency support
PAYMENT PROCESSING
Payment Enablement Platform
Contact for pricing
Full-stack payment processing platform with multiple integration options.
Key Features
- EMV payment processing
- Mobile payments
- E-commerce integration
- Tokenization
- Level 3 processing
Special Features
Subscription Management
Manage recurring subscriptions and billing cycles
Supported
Invoicing
Create and send professional invoices
Supported
Virtual Terminal
Accept payments manually via web interface
Supported
Recurring Billing
Automated recurring payment processing
Supported
Multi-Currency Support
Accept and process multiple currencies
Supported
Accepted Payment Types
Credit & Debit Cards
Visa
MasterCard
Discover
American Express
Diner's Club
UnionPay
JCB
Digital Wallets
Google Pay
Apple Pay
PayPal (Some third-party integrations may have limitations on digital wallet support.)
Bank Transfers
ACH
eCheck
Alternative Payment Methods
Debit Cards
Integrations
E-commerce Platforms
Compatible shopping cart and online store platforms
ShopifyWordpress/WooCommerceMagentoBigCommerceOpenCartShift4ShopVolusionosCommerceDrupalJoomla
10 integrations available
Accounting Software
Sync transactions with your accounting tools
QuickBooksXeroAccounting Suite
3 integrations available
CRM Systems
Connect with customer relationship management platforms
SalesforceZoho CRMInfusionsoft/KeapLimelight CRMHubSpotForth CRM
6 integrations available
Other Integrations
Additional third-party integrations and tools
ChargebeeHighLevelBookeoWHMCS
4 integrations available
Developer Tools
API Documentation
https://docs.nmi.com/
SDKs and Libraries
ios
android
windows
linux
node.js
Webhooks
Supported
Testing Environment
Available
Security & Compliance
PCI Compliance
Payment Card Industry Data Security Standard compliance level
PCI Level 1 certified (highest level)
Fraud Prevention
Fraud detection and prevention tools
iSpyFraud / Kount AI-powered fraud prevention / AVS / CVV / 3D Secure authentication
Data Encryption
Encryption standards for data at rest and in transit
End-to-end encryption
Tokenization
Supported
Replace sensitive card data with secure tokens
Support & Contact
Support Types
phoneemailkb
Chapter 4
What others say
Synthesis of third-party platform reviews and industry ratings — agreements, disagreements, and which signals to weight.
Platform Ratings
Aggregated Trust Score
Based on 208 reviews across 3 rating platforms
2.6
out of 5
Overall Rating
Better Business Bureau
2 reviews
Reviewer Notes
Not a BBB accredited business.
Trustpilot
13 reviews
Reviewer Notes
Reviews include negative reports about customer service.
G2
193 reviews
Reviewer Notes
Users praise security and integration capabilities.
Chapter 7
Better choices if…
Direct comparisons to alternatives, framed around when each option makes more sense than this one.
Better choices if…
How we evaluated NMI (Network Merchants Inc)
We evaluate every payment processor independently — Payment Review does not accept paid placement. Our analysis combines hands-on product testing where possible, public pricing and policy documents, third-party reviews from BBB, Trustpilot, Google, and G2, and employee feedback from sites like Glassdoor and Indeed. We update reviews on a rolling cadence and flag the next review date so readers know how fresh the analysis is.
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