What technologies does Five Tier use?

Five Tier uses ElasticEmail, Sendgrid, Gmail, Google Apps, GoDaddy Hosting. View their full technology stack — including all 59 detected tools — on StackWho.

Who is the Founder and CEO of Five Tier?

Frank O'Brien is the Founder and CEO at Five Tier. Get verified contact information on StackWho.

Who is the Vice President Client Services & Digital of Five Tier?

Memory Harkins is the Vice President Client Services & Digital at Five Tier. Get verified contact information on StackWho.

Where is Five Tier located?

Five Tier is based in New York, New York, United States.

Five Tier

fivetier.com

information technology & services

fivetier.com

New York, New York, United States

11-50 employees

LinkedIn Profile

About Five Tier

business, technology, marketing, automation, software, development, production, analytics, communication, organization, intelligence, service, results, operations, software development, data-driven marketing, business growth solutions, audience engagement, connected tv advertising, out of home digital advertising

Five Tier's Tech Stack

AI/ML

Backend

Elixir

Phoenix

Mobile

Android

Decision Makers at Five Tier

2 contacts

Frank O'Brien

Founder and CEO

f***@fivetier.com Sign up to view

Memory Harkins

Vice President Client Services & Digital

m***@fivetier.com Sign up to view

Unlock full contact details including verified emails and LinkedIn profiles

Upgrade to Pro

59 technologies detected · 2 decision makers · Emails available

Sales Outreach Angle

HubSpot users typically run inbound-led sales motions. Products that integrate with HubSpot (email automation, CRM enrichment, ABM platforms) are natural fits.

Five Tier's Position in the StackWho Database

• Five Tier 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.
• 74,148 information technology & services companies are in the 11-50 employee range (same size as Five Tier).

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

Frequently Asked Questions

What technology does Five Tier use?

Five Tier uses ElasticEmail, Sendgrid, Gmail, Google Apps, GoDaddy Hosting, Amazon AWS, and 53 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Five Tier?

StackWho has verified email addresses for 2 decision makers at Five Tier. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Five Tier directly for sales, recruiting, or partnerships.

What industry is Five Tier in?

Five Tier 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 Five Tier's contact data?

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