Investor
Current
Greg Langdon
2002 - Present
~24 yrs 4 mos
AeroLeads people directory · profile
Greg Langdon Email & Phone Number
Innovation Advisory Panel
at
Poplar Ventures
5 phones found
area 972, 502, and 214
LinkedIn matched
✓ Verified May 2026
4 data sources
Profile completeness 100%
Current company
Role
Innovation Advisory Panel
Location
Louisville, Kentucky, United States
Company size
Who is Greg Langdon? Overview
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Quick answer
Greg Langdon is listed as Innovation Advisory Panel at Poplar Ventures, a company with 2 employees, based in Louisville, Kentucky, United States. AeroLeads shows phone signal with area code 972, 502, 214 and a matched LinkedIn profile for Greg Langdon.
Greg Langdon previously worked as Investor at Greg Langdon and Board Member at Enterprise Angels Community Fund I. Greg Langdon holds Beee, Electrical Engineering from Vanderbilt University.
Company email context
Email format at Poplar Ventures
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Poplar Ventures
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Profile bio
About Greg Langdon
An experienced executive with a background in corporate and product strategy for technology businesses. Significant experience in executive management, business development, M&A, product management, marketing and PR, project management, software architecture and development, digital electronic design. Member of the core executive team that led Efficient Networks from a venture-funded startup into a market-leading position in broadband equipment, an initial public offering, acquisitions of several other technology companies, and subsequent $1.5 billion sale to Siemens AG. Since 2011 I've worked directly with over 100 startups - as an advisor, board member or investor, and as a mentor or organizer for over 20 cohorts in several accelerator programs. X (FKA Twitter): @GregLangdon
Listed skills include Start Ups, Product Management, Entrepreneurship, Business Development, and 16 others.
Current workplace
Greg Langdon's current company
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Poplar Ventures
18 roles · 44 years
Greg Langdon work experience
A career timeline built from the work history available for this profile.
Innovation Advisory Panel
Current
2019 - Present
~7 yrs 4 mos
Board Member
Current
Enterprise Angels Community Fund I
2018 - Present
~8 yrs 4 mos
Advisor
2020 - 2023
~3 yrs
Board Member
2016 - 2023
~7 yrs
Board Member
2016 - 2021
~5 yrs
Investment Committee Member
Sequel Fund
2014 - 2021
~7 yrs
Board Member
2015 - 2019
~4 yrs
Board Member, Chief Marketing Officer
Ucloser
Ucloser provides a software-as-a-service platform for the real estate industry. I joined the two co-founders as the third full-time employee, bringing a range of experience to the company. I contributed in a number of areas, including: Corporate- Financial projections for current and new lines of business- Modeling of unit economics for transaction-based.
Jun 2011 - May 2012
Executive Vice President, Product Strategy
Efficient Networks became a market leader in Digital Subscriber Line (DSL) products; its SpeedStream product line is used by carriers worldwide to deliver broadband Internet services. Annual revenue at Efficient Networks grew from $3 million in 1998 to over $200 million in 2000. Efficient had an initial public offering in 1999, led by Credit Suisse First.
Oct 1999 - Jun 2002
Vice President Of Marketing
Feb 1997 - Oct 1999
Director Of Product Management
Feb 1996 - Feb 1997
Chief Technology Officer, Us Carrier Products
Siemens Icn
Siemens Information and Communications Networks acquired Efficient Networks in April, 2001. After the acquisition several members of the Efficient Networks management team were appointed to executive positions within Siemens ICN; I became CTO for Siemens ICN US.
2001 - 2002
~1 yr
Staff Engineer, Member Of Technical Staff
Staff engineer: member of the team responsible for defining product requirements and system architecture for the iMPAX family of frame- and cell-switching products. - Co-author: patents 5526344, 5526349, 5809021- Software architect: member of the team responsible for architectural design of the object-oriented iMPAX network management system, and for its.
1990 - 1996
~6 yrs
Co-Founder
Addison Research
Addison Research developed and sold WinDraw, an innovative vector graphics drawing package for the Windows environment. As the first graphical Windows environment became available on PCs, WinDraw provided users with an affordable tool for creating editable graphics. Addison Research customers included Hewlett-Packard, NASA-Ames Research Center, Boeing.
1991 - 1992
~1 yr
Project Engineer
Integrated Telecom
Integrated Telecom was funded by VC firms Texas Venture Partners and Sunwest Venture Partners, and was acquired by DSC Communications in 1990. My work included hardware and software designs for the ITC ACCUDACS digital multiplexer and cross-connect system, including:- Dual processor system controller and I/O cards- Digital voice compression card- X.25.
1986 - 1990
~4 yrs
Design Engineer
Electronic design: high-speed tape drive controller for the VME environment, built from programmable logic devices
1985 - 1986
~1 yr
Engineer
- Electronic design: multiple-drive hard disk controller card- Electronic design: terminal emulation card for the IBM PC environment
1982 - 1985
~3 yrs
1 education record
Greg Langdon education
FAQ
Frequently asked questions about Greg Langdon
Quick answers generated from the profile data available on this page.
What company does Greg Langdon work for?
Greg Langdon works for Poplar Ventures.
What is Greg Langdon's role at Poplar Ventures?
Greg Langdon is listed as Innovation Advisory Panel at Poplar Ventures.
What is Greg Langdon's phone number?
AeroLeads has found 5 phone signal(s) with area code 972, 502, 214 for Greg Langdon at Poplar Ventures.
Where is Greg Langdon based?
Greg Langdon is based in Louisville, Kentucky, United States while working with Poplar Ventures.
What companies has Greg Langdon worked for?
Greg Langdon has worked for Greg Langdon, Poplar Ventures, Enterprise Angels Community Fund I, Rxlightning Inc., and Capture Higher Ed.
How can I contact Greg Langdon?
You can use AeroLeads to view verified contact signals for Greg Langdon at Poplar Ventures, including work email, phone, and LinkedIn data when available.
What schools did Greg Langdon attend?
Greg Langdon holds Beee, Electrical Engineering from Vanderbilt University.
What skills is Greg Langdon known for?
Greg Langdon is listed with skills including Start Ups, Product Management, Entrepreneurship, Business Development, Strategic Planning, Saas, Product Marketing, and Management.
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