Letterloop

letterloop.co

San Francisco, California, United States

1-10 employees

LinkedIn Profile

About Letterloop

technology, information & internet, story sharing, group updates, personal growth, private communication, deep connections, relationship enhancement, ad-free, curated questions, group bonding, group communication over email, group reflection, community sharing, data security, schedule customization, interactive questions, visual newsletter design, information technology and services, email-based platform

Letterloop's Tech Stack

AI/ML

Backend

Node.js

17 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

AWS infrastructure signals engineering sophistication. This company likely evaluates cloud cost management, security tooling, observability, and developer productivity solutions.

Letterloop's Position in the StackWho Database

• Letterloop 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).
• 53,147 companies in California are in the StackWho database.
• 97,391 information technology & services companies are in the 1-10 employee range (same size as Letterloop).

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 Letterloop use?

Letterloop uses Gmail, Google Apps, Amazon AWS, Webflow, Facebook Widget, Google Analytics, and 11 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Letterloop?

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

What industry is Letterloop in?

Letterloop operates in the information technology & 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 Letterloop's contact data?

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