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Mike Duffy Email & Phone Number

People-centric entrepreneur focused on building purpose-driven organizations. at CORE
Location: Greater Chicago Area, United States, United States 7 work roles 2 schools
1 work email found @thecitybase.com 4 phones found area 312 and 866 LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 4 phones

Work email m****@thecitybase.com
Direct phone (312) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
People-centric entrepreneur focused on building purpose-driven organizations.
Location
Greater Chicago Area, United States, United States

Who is Mike Duffy? Overview

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Quick answer

Mike Duffy is listed as People-centric entrepreneur focused on building purpose-driven organizations. at CORE, based in Greater Chicago Area, United States, United States. AeroLeads shows a work email signal at thecitybase.com, phone signal with area code 312, 866, and a matched LinkedIn profile for Mike Duffy.

Mike Duffy previously worked as Chief Executive Officer at Core and President and Chief Operating Officer at Core. Mike Duffy holds Mba, Concentrations In Economics, Econometrics And Statistics, And Entrepreneurship from The University Of Chicago Booth School Of Business.

Company email context

Email format at CORE

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{first_initial}{last}@thecitybase.com
86% confidence

AeroLeads found 1 current-domain work email signal for Mike Duffy. Compare company email patterns before reaching out.

Profile bio

About Mike Duffy

I am a serial entrepreneur with over two decades of experience revamping govtech operations and simplifying the way we interact with government and utilities. As the founder and former-CEO of CityBase, I helped revolutionize how major cities, like San Francisco, Indianapolis and our beloved Chicago offer online payments to its residents. Now as CEO of CORE it is my mission to redefine the GovTech landscape all together. I believe CORE and its people are best positioned to shape the future of GovTech at a time when governments increasingly need strong partners.

Listed skills include Entrepreneurship, Relationship Development, Strategic Planning, Creative Solutions, and 1 others.

Current workplace

Mike Duffy's current company

Company context helps verify the profile and gives searchers a useful next step.

CORE
Core
People-centric entrepreneur focused on building purpose-driven organizations.
AeroLeads page
7 roles

Mike Duffy work experience

A career timeline built from the work history available for this profile.

Chief Executive Officer

Current

East Providence, Rhode Island, US

May 2024 - Present

President And Chief Operating Officer

East Providence, Rhode Island, US

Mar 2024 - Apr 2024

Founder And Chief Executive Officer

Chicago, Illinois, US

As founder and CEO, I built a talented team that includes leaders in design, technology, and government services. I work with that team and directly with cities around the US to reimagine the citizen experience.

Oct 2013 - Jan 2024

Vp Finance

Chicago, Illinois, US

FLEx Lighting is a Chicago-based nanotechnology and optics company that produces innovative lighting solutions for consumer electronics using standard Light Emitting Diodes (LEDs). Based on years of research FLEx has created the world’s thinnest and most flexible LED light guide system. FLEx has numerous granted and pending patents established to protect.

Jun 2012 - Oct 2013

Strategist

Chicago, Illinois, US

Strategist for an Investment Management product at Northern Trust Global Investments serving Public Funds, Corporate Clients, and Family Offices with interim portfolio management.

Feb 2010 - Jun 2012

Analyst

Chicago, Illinois, US

Managed the Mortgage and Agency portfolios and co-managed the Treasury portfolio. Tasked with analyzing the impact of Federal Reserve on funding markets and communicating opinions on monetary policy to management.

Nov 2007 - Feb 2010
2 education records

Mike Duffy education

Mba, Concentrations In Economics, Econometrics And Statistics, And Entrepreneurship

The University Of Chicago Booth School Of Business

Bachelor Of Science, School Of Technology

Purdue University
FAQ

Frequently asked questions about Mike Duffy

Quick answers generated from the profile data available on this page.

What company does Mike Duffy work for?

Mike Duffy works for CORE.

What is Mike Duffy's role at CORE?

Mike Duffy is listed as People-centric entrepreneur focused on building purpose-driven organizations. at CORE.

What is Mike Duffy's email address?

AeroLeads has found 1 work email signal at @thecitybase.com for Mike Duffy at CORE.

What is Mike Duffy's phone number?

AeroLeads has found 4 phone signal(s) with area code 312, 866 for Mike Duffy at CORE.

Where is Mike Duffy based?

Mike Duffy is based in Greater Chicago Area, United States, United States while working with CORE.

What companies has Mike Duffy worked for?

Mike Duffy has worked for Core, Citybase, Inc, Flex Lighting Llc, and Northern Trust Global Investments.

How can I contact Mike Duffy?

You can use AeroLeads to view verified contact signals for Mike Duffy at CORE, including work email, phone, and LinkedIn data when available.

What schools did Mike Duffy attend?

Mike Duffy holds Mba, Concentrations In Economics, Econometrics And Statistics, And Entrepreneurship from The University Of Chicago Booth School Of Business.

What skills is Mike Duffy known for?

Mike Duffy is listed with skills including Entrepreneurship, Relationship Development, Strategic Planning, Creative Solutions, and Public Speaking.

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