21b

21b.app

New York, New York, United States

1-10 employees

LinkedIn Profile

About 21b

slack consulting, slack, digital hq, slack app implementation, slackfirst consulting, it services & it consulting, management consulting, slack for sales automation, slack integrations, slack change management, slack community platform, ai automation in slack, slack enterprise grid migration, slack enterprise solutions, software development, services, slack workflow builder, computer systems design and related services, slack training, enterprise slack migration

21b's Tech Stack

11 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

21b is a technology company. Software vendors, dev tools, and SaaS platforms find technology companies like this highly receptive. Use StackWho to identify the right decision-maker (CTO, VP Eng, or Head of Product) and reach out with a stack-specific pitch.

21b's Position in the StackWho Database

• 21b is 1 of 194,140 information technology & services companies tracked in StackWho.
• 193,618 information technology & services companies in our database have verified decision-maker emails (100% of the cohort).
• 23,956 companies in New York are in the StackWho database.
• 97,391 information technology & services companies are in the 1-10 employee range (same size as 21b).

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 21b use?

21b uses Gmail, Google Apps, Google Cloud Hosting, Wix, Mobile Friendly, Varnish, and 5 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at 21b?

StackWho has verified email addresses for 1 decision maker at 21b. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach 21b directly for sales, recruiting, or partnerships.

What industry is 21b in?

21b operates in the information technology & services industry, headquartered in New York, New York, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export 21b's contact data?

Yes. StackWho Pro members can export decision maker contact data for 21b and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.