LAST UPDATED: May 1, 2025

Payment Gateway Companies (488)

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Official Payments Corporation (acquired by ACI Worldwide - Nov 2013)

1 Landmark Sq Ste 400 | Stamford- Connecticut- 06901-2670 | 800-487-4567

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Revenue: $100 million - $250 million | Year Founded: 1999 | Firm Size: 500 - 1,000

Core Services: Treasury Management , Payment Gateway

oink.com

1221 Hermosa Avenue | Hermosa Beach- California- 90254 | 302 536-2180

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Revenue: Est. $1 million | Year Founded: 2010 | Firm Size: 1 - 10

Core Services: Credit Card Processing , Payment Gateway

OLB.com

200 Park Avenue- Suite 1700. | New York- New York- 10166 | 212-278-0900

View Reviews (1) | Write a Review

Revenue: $5 million - $10 million | Year Founded: 1995 | Firm Size: 10 - 50

Core Services: Transaction Verification , Online Credit Card Processing , Point of Sale Systems , Payment Gateway

OnePay

Wells Road Business Centre | Ilkley- West Yorkshire- LS29 9JB | 44 113 320 2900

View Reviews (24) | Write a Review

Revenue: Est. $1 million | Year Founded: 2003 | Firm Size: 1 - 10

Core Services: Credit Card Processing , Online Credit Card Processing , Payment Gateway

ONPEX GmbH

Beichstr. 5- 80802 | Munich- Germany- 80802

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Revenue: $1 million - $3 million | Year Founded: 2008 | Firm Size: 3

Core Services: Payment Gateway

Onyx Payments

5420 Lbj Freeway- Suite 900 | Dallas- Texas- 75240 | 214-396-3280

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Revenue: $10 million - $50 million | Year Founded: 2013 | Firm Size: 100 - 250

Core Services: Payment Gateway

Ophrys Medica

462 rue Benjamin | France- 77554

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Revenue: $5 million - $10 million | Year Founded: 1997 | Firm Size: 5

Core Services: Payment Gateway

Oportun, Inc.

2 Circle Star Way | San Carlos- California- 94070 | 650-488-7738

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Revenue: $250 million - $500 million | Year Founded: 2005 | Firm Size: 2,500 - 5,000

Core Services: Payment Gateway

Progreso Financiero will soon be named Oportun. Only the name is changing. We continue our commitment to the same mission: Provide responsible, affordable loans that help the Hispanic community establish credit and build a better future. We believe everyone should have the opportunity to thrive and we can help you get there.   View Profile

Optimized Payments Consulting

303 Perimeter Center | North Atlanta- Georgia- 30346 | 1 800-846-1305

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Revenue: Under $250,000 | Year Founded: 2006 | Firm Size: 8

Core Services: Online Bank Deposit , Payment Gateway , Online Credit Card Processing

Otiglobal

ZHR Industrial Zone | Israel- 12000 | 7324291900x131

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Revenue: $250,000 - $1 million | Year Founded: 2002 | Firm Size: 2

Core Services: Mobile Processing , Online Credit Card Processing , Payment Gateway

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