Block

Block

block.xyz

financial services

San Francisco, California, United States
10001+ employees
24121053000 revenue

About Block

computer software: prepackaged software, technology, financial infrastructure, user experience, distributed systems, payment systems, buy now pay later, envoy, music streaming, cryptography, defi, grpc, okhttp, community-driven development, bitcoin ecosystem, machine learning, financial empowerment, microservices, financial technology, financial services

19 technologies detected · 80 decision makers · Emails available

Sales Outreach Angle

React-based front-ends indicate a modern web engineering stack. Developer tools, component libraries, testing frameworks, and design systems are relevant sales angles.

Block's Position in the StackWho Database

  • Block is 1 of 21,667 financial services companies tracked in StackWho.
  • 21,586 financial services companies in our database have verified decision-maker emails (100% of the cohort).
  • 53,147 companies in California are in the StackWho database.
  • 165 financial services companies are in the 10001+ employee range (same size as Block).

Technology detection from public web signals. Decision-maker contacts compiled from LinkedIn public profiles, company filings, and verified outbound testing. Methodology & sources · Updated September 2026.

Frequently Asked Questions

What technology does Block use?

Block uses Route 53, Rackspace MailGun, Gmail, Google Apps, Microsoft Office 365, Afterpay, and 13 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Block?

StackWho has verified email addresses for 80 decision makers at Block. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Block directly for sales, recruiting, or partnerships.

What industry is Block in?

Block operates in the financial services industry, headquartered in San Francisco, California, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Block's contact data?

Yes. StackWho Pro members can export decision maker contact data for Block and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.