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Mark Semer Email & Phone Number

Managing Director at Gasthalter & Co. LP at Gasthalter & Co. LP

Location: New York City Metropolitan Area, United States, United States 2 work roles 1 school

1 work email found @gasthalter.com 1 phone found area 212 LinkedIn matched

✓ Verified May 2026 4 data sources Profile completeness 100%

Current company

Gasthalter & Co. LP

Role

Managing Director at Gasthalter & Co. LP

Location

New York City Metropolitan Area, United States, United States

Company size

15 employees

Who is Mark Semer? Overview

A concise factual answer block for searchers comparing this professional profile.

Quick answer

Mark Semer is listed as Managing Director at Gasthalter & Co. LP at Gasthalter & Co. LP, a company with 15 employees, based in New York City Metropolitan Area, United States, United States. AeroLeads shows a work email signal at gasthalter.com, phone signal with area code 212, and a matched LinkedIn profile for Mark Semer.

Mark Semer previously worked as Managing Director at Gasthalter & Co. Lp and Partner and Co-Head of Alternative Investment Group at Kekst Cnc. Mark Semer holds Ba, Political Science from Columbia University In The City Of New York.

Company email context

Email format at Gasthalter & Co. LP

This section adds company-level context without repeating Mark Semer's masked contact details.

*@gasthalter.com

71% confidence

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

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Profile bio

About Mark Semer

Mark Semer is a Managing Director at Gasthalter & Co.Mark has 30 years of strategic communications experience and is a trusted advisor to leaders of public and private companies across many industries, investment firms, and the real estate community, among other businesses.Mark advises clients on a wide range of corporate and financial communications matters, including mergers & acquisitions and other transformative transactions; crisis communications; executive transitions and change management; litigation, disputes and regulatory issues; and restructuring-related situations. Mark has deep expertise advising leading private equity investors on general positioning, as well as with respect to complex issues such as transactions, fundraising, crises and special situations. His relationship with investment firms often extends to portfolio companies that he represents in connection with important challenges and opportunities.

Listed skills include Media Relations, Strategic Communications, Mergers And Acquisitions, Crisis Communications, and 2 others.

Current workplace

Mark Semer's current company

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

Gasthalter & Co. Lp

Managing Director at Gasthalter & Co. LP

new york, new york, united states

Website

gasthalter.com

Employees

15

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Company profile

View company profile Email format

2 roles

Mark Semer work experience

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

Managing Director

Current

Gasthalter & Co. Lp

New York, United States

Apr 2021 - Present

Partner And Co-Head Of Alternative Investment Group

Kekst Cnc

Greater New York City Area

Oct 1993 - Apr 2021

Team & coworkers

Colleagues at Gasthalter & Co. LP

Other employees you can reach at gasthalter.com. View company contacts for 15 employees →

IB

Isabelle Banin Colleague at Gasthalter & Co. LpChicago, Illinois, United States, United States View → BL

Brandon Lin Colleague at Gasthalter & Co. LpNew York City Metropolitan Area, United States View → JW

Jonathan Warren Colleague at Gasthalter & Co. LpChicago, Illinois, United States, United States View → IH

Iain Hughes Colleague at Gasthalter & Co. LpNew York, New York, United States, United States View → AS

Aidan Schechter Colleague at Gasthalter & Co. LpNew York, New York, United States, United States View → KD

Kevin Driscoll Colleague at Gasthalter & Co. LpGreater Chicago Area, United States View → TK

Talia Kalman Colleague at Gasthalter & Co. LpGreater Chicago Area, United States View → SA

Sam Ashton Colleague at Gasthalter & Co. LpNew York, New York, United States, United States View → PM

Phoebe Myers Colleague at Gasthalter & Co. LpNew York, New York, United States, United States View →

1 education record

Mark Semer education

Columbia University In The City Of New York

Political Science

FAQ

Frequently asked questions about Mark Semer

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

What company does Mark Semer work for?

Mark Semer works for Gasthalter & Co. LP.

What is Mark Semer's role at Gasthalter & Co. LP?

Mark Semer is listed as Managing Director at Gasthalter & Co. LP at Gasthalter & Co. LP.

What is Mark Semer's email address?

AeroLeads has found 1 work email signal at @gasthalter.com for Mark Semer at Gasthalter & Co. LP.

What is Mark Semer's phone number?

AeroLeads has found 1 phone signal(s) with area code 212 for Mark Semer at Gasthalter & Co. LP.

Where is Mark Semer based?

Mark Semer is based in New York City Metropolitan Area, United States, United States while working with Gasthalter & Co. LP.

What companies has Mark Semer worked for?

Mark Semer has worked for Gasthalter & Co. Lp and Kekst Cnc.

Who are Mark Semer's colleagues at Gasthalter & Co. LP?

Mark Semer's colleagues at Gasthalter & Co. LP include Isabelle Banin, Brandon Lin, Jonathan Warren, Iain Hughes, and Aidan Schechter.

How can I contact Mark Semer?

You can use AeroLeads to view verified contact signals for Mark Semer at Gasthalter & Co. LP, including work email, phone, and LinkedIn data when available.

What schools did Mark Semer attend?

Mark Semer holds Ba, Political Science from Columbia University In The City Of New York.

What skills is Mark Semer known for?

Mark Semer is listed with skills including Media Relations, Strategic Communications, Mergers And Acquisitions, Crisis Communications, Strategy, and Private Equity.

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