Onboard Partners

What Onboard Partners does

Onboard Partners is a Boston-based financial services growth platform founded in 1979 (originally as Kessler Group, rebranded in 2023) that partners with banks, credit unions, payment networks, and affinity organizations to develop, relaunch, and scale credit card and consumer lending programs. The company originated the affinity branded credit card concept alongside MBNA in 1982 and has built a 6,000+ partnership franchise over 45+ years, including advisory engagements on landmark transactions such as Capital One's $5.2 billion acquisition of Cabela's credit card receivables.

The firm's product surface is organized around a Growth Platform with four interlocking service lines: Strategic Partnerships (initiating and managing co-brand and Card-as-a-Service programs across retailers, airlines, universities, sports teams, and professional associations), Performance Marketing (data-driven, omni-channel acquisition campaigns funded on a pay-for-performance basis), Portfolio Solutions (sourcing, underwriting, structuring, and managing credit card and unsecured loan investments), and Capital Deployment (arranging investors and funding client initiatives). It also operates Mercantile, a wholly-owned division acquired in 2024 that issues American Express-backed business credit cards for professional associations (ABA, AGD), and Embark Card Services, launched in 2024 with three consumer credit cards on the American Express Network.

Revenue is generated through professional services fees, transaction and performance fees tied to customer acquisition outcomes, managed services for card programs, and capital deployment-linked economics — all delivered through enterprise B2B relationships. The company is privately held under Stone Point Capital, which acquired it from ECN Capital in October 2022, and reports having managed or advised on $100B+ in assets, deployed $1B+ in funded performance marketing, and purchased/managed $6.2B–$11B in assets for investors.

Name

Onboard Partners

Legal name

Onboard Partners LLC

Website

https://onboardpartners.com

Company type

Private

Founded year

1979

Operating status

Operating

Headcount range

51–100 employees

Short description

Onboard Partners is a Boston-based financial services growth platform that partners with banks, credit unions, and affinity organizations to develop, market, and manage credit card and consumer lending programs on a pay-for-performance basis. Founded in 1979 and PE-backed by Stone Point Capital since 2022.

Ownership category

akta.pro rank

Product category

Financial Services Advisory

NAICS

Activities Related to Credit Intermediation (5223)

SIC

Services-Management Consulting Services (8742)

akta.pro primary industry

Co-Branded Credit Cards (FSAKABAB)

akta.pro secondary industries

Embedded Card Issuing & Card-as-a-Service (FSAGALAC), Earning Partnerships (Retail, Travel, Lifestyle) (THABAKAC), Card Issuing & Program Management Platforms (BPAMAFAH)

Keywords

• Credit card programs
• Affinity partnerships
• Performance marketing
• Portfolio management
• Capital deployment

Headquarters

HQ city

Boston

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Marketing or Sales, Operations, Technology or R&D, Infrastructure

Revenue model

1. Strategic Partnership Services: Facilitates and manages partnerships between financial institutions and affinity organizations (retailers, airlines, universities, sports teams, unions, member associations). Revenue generated through partnership initiation, program management, and optimization services.
2. Performance Marketing: Funds and executes marketing campaigns on a pay-for-performance basis. Onboard Partners pays upfront for campaign expenses and is compensated when new customers meet specified acquisition criteria such as direct deposit setup and deposit minimums.
3. Portfolio Solutions and Advisory: Provides strategic advisory and transactional services including sourcing, underwriting, negotiating, structuring, and managing credit card and unsecured loan investments. Generates fees from portfolio management and transaction facilitation.
4. Card-as-a-Service: Turnkey co-brand credit card programs offered to financial institutions, enabling them to offer credit cards without building in-house capabilities. Revenue model includes program management and operational fees.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Onboard Partners operates a financial services Growth Platform that helps credit card issuers, banks, credit unions, and affinity organizations optimize customer acquisition, develop strategic partnerships, build and manage consumer lending portfolios, and deploy capital on a pay-for-performance basis. Its offerings include affinity co-brand credit card programs (e.g., Mercantile, Embark), performance marketing funding, portfolio advisory services, and Card-as-a-Service solutions delivered through bank issuers on networks such as American Express.

Product overview

Onboard Partners is a financial services growth platform that offers a unified suite of services rather than a single product. The core offerings include Mercantile (affinity credit card programs for professional associations), Embark Card Services (consumer credit cards on American Express Network), and a Growth Platform comprising Strategic Partnerships, Performance Marketing, Portfolio Solutions, and Capital Deployment services. The company helps optimize customer acquisition and lifetime value, develop strategic partnerships, build and manage consumer lending portfolios, and deploy capital to accelerate strategic priorities. The platform is anchored in data-driven decisions and pay-for-performance models, having facilitated over 6,000 partnerships and managed over $100B in assets.

Differentiator

Problem solved

Functional benefit

Brands

• Mercantile: Financial services platform offering American Express credit cards for professional associations including the ABA American Express Business Card for lawyers and AGD Business Credit Card for dental practice owners.
• Mercantile Financial Technologies
• Embark Card Services

Products and services

• Growth Platform Comprehensive service platform offering strategic and operational services that help financial institutions and affinity organizations improve performance and profit potential. Includes Strategic Partnerships, Performance Marketing, Portfolio Solutions, and Capital Deployment service lines. Targeted at banks, credit unions, card issuers, payment networks, FinTech innovators, and affinity organizations.
• Mercantile Financial services platform and division of Onboard Partners providing American Express-backed business credit card programs for professional associations and small business owners. Includes co-brand cards for ABA lawyers and AGD dental practice owners.
• Embark Card Services Card services initiative launched in 2024 offering three credit cards on the American Express Network, designed to provide credit to a broader spectrum of consumers.
• ABA American Express Business Card Exclusive business credit card for ABA members and legal professionals (solo practitioners and small law firms), offering up to 2% cash back on business spending and up to 5% cash back on ABA purchases. Issued by Celtic Bank on the American Express Network via the Mercantile division.
• AGD Business Credit Card Exclusive business credit card for Academy of General Dentistry (AGD) members and dental practice owners. Offers rewards, expense management tools, and business credit building capabilities with no annual fee.
• Performance Marketing Marketing capabilities and investment funds that enable clients to accelerate customer acquisition, including strategic data-driven marketing, omni-channel execution, creative services, and analytics using machine learning. Funding deployed on a pay-for-performance basis.
• Portfolio Solutions Strategic advisory and transactional services including sourcing, underwriting, negotiating, structuring, and managing credit card and unsecured loan investments. Provides custom financing solutions backed by leading banks and institutional investors.
• Strategic Partnerships Service that initiates, manages, and optimizes partnerships between financial institutions and partners including retailers, airlines, universities, sports teams, unions, and member associations. Includes turnkey co-brand credit card programs and Card-as-a-Service offerings.
• Capital Deployment Service that funds client initiatives on a pay-for-performance basis, including marketing and business development funding, and arranging investors for portfolio acquisitions and new forward-flow credit card and loan programs.

Quantifiable outcome

• 40% year-over-year card growth for regional bank client
• +6 more outcomes

Named customers5 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability1 record

Partnerships

Six partnerships are on record, tiered core and major.

• American ExpresscoreTechnology or Integration · 24 June 2026American Express partners with Onboard Partners (through its Mercantile division) and the American Bar Association to launch the ABA American Express Business Card for legal professionals. The card is issued by Celtic Bank on the American Express Network and offers up to 2% cash back on business spending and up to 5% on ABA purchases.
• American Bar Association (ABA)coreStrategic or Co-development Partner · 24 June 2026The American Bar Association selected Mercantile (a division of Onboard Partners) following an evaluation process focused on member alignment and scalability to launch an exclusive business credit card for ABA members and legal professionals.
• Celtic BankcoreChannel Partner/ Reseller/ Distributor · 24 June 2026Celtic Bank serves as the issuing bank for the ABA American Express Business Card, operating on the American Express payment network in partnership with Onboard Partners.
• Academy of General Dentistry (AGD)coreStrategic or Co-development Partner · 1 May 2025AGD partnered with Mercantile (Onboard Partners) to launch an exclusive business credit card for dental practice owners as part of AGD's expanding member benefits program. The card provides rewards, expense management, and business credit building with no annual fee.
• NOVA (later U.S. Bank)majorStrategic or Co-development Partner · 1 January 1990Partnered with NOVA in merchant acquiring to convince banks to sell their merchant portfolios and use NOVA to process them, expanding the business during the 1990s.
• MBNAcoreStrategic or Co-development Partner · 1 January 1982MBNA partnered with Kessler Financial Services (now Onboard Partners) to establish the first affinity branded credit cards, creating partnership between MBNA and affinity groups.

Scale indicators11 records

Recent moves9 records

Expansion highlights6 records

Broad incumbents

• Stripe Issuing: Card-issuing API within Stripe's payments platform, enabling platforms and fintechs to create and manage branded cards. A broad incumbent that competes with Onboard in the card-as-a-service layer, particularly for tech-forward clients.
• Bread Financial: Large publicly traded provider of co-brand and private label credit cards for retailers and brands, plus emerging banking products. Closest large-scale analog to Onboard's affinity co-brand focus, though Bread is far larger and publicly listed.
• Comenity Capital Bank: Issuer of store-branded and affinity credit cards across retail, travel, and lifestyle verticals. Competes with Onboard's affinity/co-brand program facilitation, though as an issuer rather than a program facilitator and advisor.
• TSYS / Global Payments: One of the largest card processing and program management platforms, serving issuers globally with credit, debit, and prepaid programs. Comparable to Onboard at the program management and processing layer, though at materially greater scale and breadth.

Direct peers

• i2c: Global card issuing and processing platform serving banks, fintechs, and program managers with credit, debit, and prepaid products. Comparable to Onboard as a behind-the-scenes infrastructure provider enabling co-brand and affinity card programs.
• Galileo Financial Technologies: A SoFi-owned card issuing and processing platform that powers debit, credit, and prepaid programs for banks, fintechs, and brands. It is a direct competitor in the embedded card issuing and program management space that Onboard targets through Mercantile and Embark.
• Marqeta: Public card-issuing platform providing modern card issuance APIs that compete directly with Onboard's Card-as-a-Service and embedded card programs. Both serve banks, fintechs, and program managers launching branded debit, credit, and prepaid cards.

Emerging players

• Lithic: A venture-backed card issuing platform focused on fintechs and embedded finance use cases. Overlaps with Onboard's Card-as-a-Service ambitions, especially for newer entrants looking for lighter-weight infrastructure than legacy processors.
• Synctera: BaaS platform connecting fintechs with sponsor bank partners and providing compliance, KYC, and card program infrastructure. Overlaps with Onboard's Card-as-a-Service mission of helping non-bank entities launch card programs with embedded banking rails.

Others

• FTI Consulting: Large global advisory firm with a Financial Services practice that competes for the advisory and portfolio transactions work Onboard performs for banks and investors. Different delivery model (time-and-materials consulting) but same client base and transaction types.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/onboard-partners
• Facebookfacebook.com/OnboardPartners

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Onboard Partners