S3 provides financial industry clients with the intelligence, services, and technology that help them to make their trades, the best trades. S3’s dynamic algorithms adjust in real-time to the results of each trade, adapting the routing to support the business needs of the client. In addition, customers can easily change automated route preferences via an intuitive web-based interface and view S3’s industry leading Best Execution statistics in real-time.
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The S3 annual revenue was $7 million in 2026.
Mark Davies is the CEO of S3.
49 people are employed at S3.
S3 is based in Austin, Texas.
The NAICS codes for S3 are [54, 541511, 5415, 541, 33, 54151].
The SIC codes for S3 are [737, 73].