The Twenty One

the21.io

management consulting

the21.io

PRINCE, New York, United States

1-10 employees

LinkedIn Profile

About The Twenty One

business consulting & services, management consulting

The Twenty One's Tech Stack

AI/ML

Decision Makers at The Twenty One

1 contact

Jonathan Gupta-Buckley

Founder

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16 technologies detected · 1 decision maker · 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.

The Twenty One's Position in the StackWho Database

• The Twenty One is 1 of 29,865 management consulting companies tracked in StackWho.
• 29,825 management consulting companies in our database have verified decision-maker emails (100% of the cohort).
• 23,956 companies in New York are in the StackWho database.
• 18,186 management consulting companies are in the 1-10 employee range (same size as The Twenty One).

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

Frequently Asked Questions

What technology does The Twenty One use?

The Twenty One uses Gmail, Google Apps, Google Cloud Hosting, Mobile Friendly, Varnish, Wix, and 10 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at The Twenty One?

StackWho has verified email addresses for 1 decision maker at The Twenty One. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach The Twenty One directly for sales, recruiting, or partnerships.

What industry is The Twenty One in?

The Twenty One operates in the management consulting industry, headquartered in PRINCE, New York, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export The Twenty One's contact data?

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