Sift
Sift is the leading fraud prevention platform delivering digital trust to 700+ global brands.
278 employees · est. 2011 · San Francisco, United States
Simility, A PayPal Service
Adaptive Decisioning Platform built with a data-first approach to deliver continuous risk assurance.
21 employees · est. 2014 · San Jose, United States
Sift is the older company (2011 vs 2014); Sift is the larger of the two.
Side-by-Side Comparison
| Metric | Sift | Simility, A PayPal Service |
|---|---|---|
| Founded | ||
| Founded | 2011 older | 2014 |
| Headquarters | ||
| Headquarters | San Francisco, United States | San Jose, United States |
| Employees | ||
| Employees | 278 larger | 21 |
| Industry | ||
| Industry | Analytics, Big Data, Cyber Security | Fintech, Payments, Platforms |
| Funding Stage | ||
| Funding Stage | Series E | IPO |
| Total Funding | ||
| Total Funding | $156.73M | $4.03B |
| Funding Rounds | ||
| Funding Rounds | 7 | 12 |
| Services | ||
| Services | Fraud Detection and Prevention, Account Defense, Payment Protection, Fraud Intelligence, Operational Excellence | Online Payment Processing, Mobile Payment Solutions, Digital Wallet Management, Buyer Protection Services, Payment Method Integration |
| Target Customers | ||
| Target Customers | Digital Commerce Companies, Finance and Fintech Firms, Online Gambling Platforms, Travel and Transportation Services, Food and Delivery Services | E-commerce Businesses, Online Shoppers, Mobile App Users, Small and Medium Enterprises, International Merchants |
| Taxonomy | ||
| Taxonomy | Fraud Prevention, Digital Trust & Safety, Fraud Detection, Predictive Analytics, Data Visualization, Payment Fraud, Revenue Growth, Fraud Expertise, Fraud Protection, Global Data Network | Adaptive Decisioning, Risk Assurance, Fraud Decisioning, Real-time Risk Solutions, AI-Powered Analytics, Big Data Analytics, Fraud Detection, Financial Services Protection, Commerce Fraud Solutions, Payment Processor Security, Business Orchestration, Consumer Brands Protection, Digital Payment Security |
| Website | ||
| Website | sift.com | paypal.com |
About Sift
Sift is a prominent player in the fraud prevention landscape, known for its ability to deliver digital trust to over 700 global brands. Founded in 2011, the company has positioned itself at the intersection of Analytics, Big Data, Cyber Security, Fintech, and RegTech, providing a comprehensive solut...
About Simility, A PayPal Service
Simility, A PayPal Service is a prominent player in the Fintech space, offering real-time risk and fraud decisioning solutions. Founded in 2014, the company leverages its Adaptive Decisioning Platform to provide continuous risk assurance, combining AI and big data analytics to help businesses orches...
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Compiled from the BounceWatch company index. We last looked at Sift on 12 Jul 2026, and Simility, A PayPal Service on 3 Jun 2026. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.