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Don Mullen Email & Phone Number

Coach // Leader // Wild Mushroom Forager // Pianist // Amateur Herpetologist at Treestone Consulting LLC
Location: Durham, North Carolina, United States 21 work roles 1 school
1 work email found @willowtreeapps.com 4 phones found area 919 and 888 LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 4 phones

Work email d****@willowtreeapps.com
Direct phone (919) ***-****
LinkedIn Profile matched
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Current company
Role
Coach // Leader // Wild Mushroom Forager // Pianist // Amateur Herpetologist
Location
Durham, North Carolina, United States

Who is Don Mullen? Overview

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Quick answer

Don Mullen is listed as Coach // Leader // Wild Mushroom Forager // Pianist // Amateur Herpetologist at Treestone Consulting LLC, based in Durham, North Carolina, United States. AeroLeads shows a work email signal at willowtreeapps.com, phone signal with area code 919, 888, and a matched LinkedIn profile for Don Mullen.

Don Mullen previously worked as Senior Growth Program Director at Willowtree and Partner & Vice President Program Management at Willowtree. Don Mullen holds Bs, Computer Science from Duke University.

Company email context

Email format at Treestone Consulting LLC

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{first}.{last}@willowtreeapps.com
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AeroLeads found 1 current-domain work email signal for Don Mullen. Compare company email patterns before reaching out.

Profile bio

About Don Mullen

Experienced coach, entrepreneur, project manager, team leader, and facilitator. Founder or founding team of six technology startups, with two exits. Over the years, I increasing enjoyed building teams, managing and mentoring people, and coaching individuals to become their best selves. I am now actively coaching with a specialty in entrepreneurship, leadership, and peak performance.

Listed skills include Entrepreneurship, Clojure, Lean Startup, Software Project Management, and 18 others.

Current workplace

Don Mullen's current company

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

Treestone Consulting LLC
Treestone Consulting Llc
Coach // Leader // Wild Mushroom Forager // Pianist // Amateur Herpetologist
Durham, NC, US
AeroLeads page
21 roles · 33 years

Don Mullen work experience

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

Senior Growth Program Director

Charlottesville, VA, US

Jan 2023 - Jun 2023

Partner & Vice President Program Management

Charlottesville, VA, US

Jul 2020 - Dec 2022

Vice President, Program Management

Charlottesville, VA, US

Sep 2019 - Jul 2020

Senior Project Manager

Charlottesville, VA, US

Jun 2018 - Aug 2019

Founder

Treestone Software Llc

Consultancy focused on helping individuals, small businesses, and non-profits with:- Technical Recruiting Strategies and Process- Improvement of process and project management- One-on-One Career and Personal Growth Coaching- Team building- Strategy and Vision- CTO for Hire- Technology evaluation- Agile Methodologies- Lean Startup Techniques- Lean UX

May 2016 - May 2018

Board Member

Durham, North Carolina, US

Member Long Range Planning, Head of School Search, Human Resources committees, and Trustees committee.

Jun 2013 - May 2015

Founder

Hostel Rocket
  • CTO
  • Lead development effort for web service and mobile apps
  • Clojure/Clojurescript/Datomic tech stack
Feb 2014 - Jun 2015

Board Member

Clean Energy Durham
Nov 2012 - Jun 2014

Managing Director, Durham Nc

San Francisco, CA, US

  • Co-lead week long Lean Startup workshop for Duke University
  • Recruiting, Office Management, Business Development, Product Management
Jan 2013 - Aug 2013

Principal

Durham, NC, US

  • As Relevance (which became Cognitect in 2013) grew quickly from 7 to 40, I leveraged my previous business and small company experience to take on the following roles, as needed:
  • Business Analysis, gathered Requirements, UX Designer, and Project Manager for ConnectCare’s Caregiver Portal.
  • Business Analysis and Project Manager for PICA Group’s new line of insurance business for Ophthalmologists.
  • Project Manager and initial developer and UX designer (Ruby on Rails) for Sustainable Harvest’s internal coffee order and shipping application.
  • Project Manager and part-time developer for a legal matter management system that eventually became Onit.
  • Legal Liaison and HIPAA Compliance Officer
Nov 2007 - Nov 2011

Director, Xml Technologies

Santa Clara, California, US

  • Circle of Excellence Award, 2002: Awarded yearly to the 100 employees in TIBCO who best exemplified excellence.
  • Responsible for integration of XML technologies into the TIBCO stack.
  • Project manager on development of XML Canon – an XML document and schema repository.
  • TIBCO representative on W3C XML Schema and WSDL Working Groups.
2001 - 2007 ~6 yrs

Principal, Director Of Software Development And Technical Recruitment

Extensibility, Inc.
  • $100 million exit to TIBCO (https://www.intersouth.com/extensibility)
  • Founding team member charged with hiring and managing development effort.
  • Developer and Software Architect on Extensibility’s XML Authority and other XML software.
  • Participant on the W3C XML Schema Working Group.
1999 - 2001 ~2 yrs

Founder

Perfect Interval, Llc
  • Perfect Interval designed and developed music instruction software for serious high school and university music students, as well as tools for professors to use in creating their own instructional material.
1998 - 1999 ~1 yr

Director, Software Development

Cortex Vision Systems, Inc.
  • Designed and developed a distributed, multi-tiered Digital-Video Security application.
  • Coordinated the design and usability testing of a sophisticated graphical user interface for the system.
  • Established and enhanced the software development process, including the creation of a Software Quality Assurance group.
1997 - 1998 ~1 yr

Co-Owner And Vice President, Software Development

Software Designs Unlimited, Inc.
  • Established the software development process for a team of twenty-eight programmers, graphic artists, and quality assurance personnel.
  • Coordinated the design and development of several multimedia CD-ROM and Internet based educational, business, and entertainment applications. Projects generated approximately $2 million in annual revenue.
  • Clients included Apple, National Geographic Society (NGS), Charles Schwab, Glaxo, Prentice Hall, and Simon & Schuster.
  • Project Manager for a custom sales force application for Simon & Schuster, Inc.
  • Developed NGSs’ Kid’s Network: over a million users and 30,000 installations worldwide.
1995 - 1997 ~2 yrs

Founder

Cogent Systems, Llc
  • Designed and developed National Geographic Society's Picture Atlas of the World CD-ROM title.
  • Developed the Windows version of two marketing presentation software packages for Apple.
  • Technical Lead of Glaxo’s Pharmaceutical Patient Care Cognitive Services Management System. One of five on the team to receive U.S. patent number 5,666,492 for the system, issued on September 9, 1997.
  • Cogent Systems, Inc. merged with Software Designs Unlimited, Inc. in 1995.
1993 - 1995 ~2 yrs

Associate In Research And Lead Developer

Durham, North Carolina, US

Jun 1986 - Mar 1991
1 education record

Don Mullen education

  • Duke University
    Duke University
    Computer Science
FAQ

Frequently asked questions about Don Mullen

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

What company does Don Mullen work for?

Don Mullen works for Treestone Consulting LLC.

What is Don Mullen's role at Treestone Consulting LLC?

Don Mullen is listed as Coach // Leader // Wild Mushroom Forager // Pianist // Amateur Herpetologist at Treestone Consulting LLC.

What is Don Mullen's email address?

AeroLeads has found 1 work email signal at @willowtreeapps.com for Don Mullen at Treestone Consulting LLC.

What is Don Mullen's phone number?

AeroLeads has found 4 phone signal(s) with area code 919, 888 for Don Mullen at Treestone Consulting LLC.

Where is Don Mullen based?

Don Mullen is based in Durham, North Carolina, United States while working with Treestone Consulting LLC.

What companies has Don Mullen worked for?

Don Mullen has worked for Treestone Consulting Llc, Willowtree, Treestone Software Llc, Montessori School Of Durham, and Little Green Software.

How can I contact Don Mullen?

You can use AeroLeads to view verified contact signals for Don Mullen at Treestone Consulting LLC, including work email, phone, and LinkedIn data when available.

What schools did Don Mullen attend?

Don Mullen holds Bs, Computer Science from Duke University.

What skills is Don Mullen known for?

Don Mullen is listed with skills including Entrepreneurship, Clojure, Lean Startup, Software Project Management, Agile Project Management, Agile Methodologies, Software Development, and Hiring Practices.

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