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500Friends (YC W10) — the best loyalty and retention marketing partner for CMOs

Merkle Loyalty Solutions, formerly 500friends, is a leader in customer loyalty marketing solutions. Clients depend on us to help them develop and execute a differentiated and impactful customer loyalty strategy that delivers the business results they expect.

500Friends is a Y Combinator company in the Winter 2010 batch. Its directory entry describes it as: the best loyalty and retention marketing partner for CMOs. The founder listed is Hong Hu (Founder) (Y Combinator directory entry, January 17, 2012).

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500Friends

New accelerator entry · 2012-01-17 · the record

Winter 2010
batch
51
people
Early
stage
United States of America
region
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What the record says

BatchWinter 2010
Announced2012-01-17
StageEarly
StatusAcquired
Team size51
IndustryB2B
Sub-industryB2B -> Retail
SectorsMarketing
RegionsUnited States of America, America / Canada
BasedSan Francisco, CA, USA
HiringNo

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Also in YC Winter 2010

Same batch, B2B first.

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In their words

Merkle Loyalty Solutions, formerly 500friends, is a leader in customer loyalty marketing solutions. Clients depend on us to help them develop and execute a differentiated and impactful customer loyalty strategy that delivers the business results they expect. Merkle Loyalty Solutions is recognized by Forrester Research as a Strong Performer in The Forrester Wave™: Customer Loyalty Solutions, Q3 2017, and as a Leader and received the highest overall score in The Forrester Wave™: Customer Loyalty Solutions For Midsize Organizations, Q1 2016. The end-to-end loyalty services Merkle Loyalty Solutions offer include: - Strategic consulting - SaaS loyalty platform named LoyaltyPlus™ - Platform integration - Program management and support - Advanced analytics Merkle is a leading data-driven, technology-enabled, global performance marketing agency that specializes in the delivery of unique, personalized customer experiences across platforms and devices. The agency’s heritage in data, technology, and analytics forms the foundation for its unmatched skills in understanding consumer insights that drive people-based marketing strategies. With more than 4,100 employees, the Merkle team is based in Columbia, MD, with 16 additional offices in the US and 8 offices in Europe and Asia. In 2016, the agency joined the Dentsu Aegis Network. Learn more about Merkle Loyalty Solutions at www.500friends.com. --- We're hiring! Please check out our openings at: www.500friends.com/who-we-are/careers

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  3. What They Do, And How The Money Works

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  5. The Money: Funding, Valuation, Runway

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500Friends: Accepted into Y Combinator Winter 2010
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Permanent URL: https://mentionfox.com/funding/yc-500friends
Last updated 2026-10-29
Primary record: Y Combinator directory entry
500Friends (YC W10) — the best loyalty and retention marketing partner for CMOs. MentionFox, 2026-10-29. https://mentionfox.com/funding/yc-500friends