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Nicholas Machen Email & Phone Number

Managing Director at Jefferies
Location: New York, United States 9 work roles 2 schools
1 work email found @citi.com LinkedIn matched
✓ Verified Jul 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email

Work email n****@citi.com
LinkedIn Profile matched
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Current company
Jefferies
Role
Managing Director
Location
New York, United States
Company size
7751 employees

Who is Nicholas Machen? Overview

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Quick answer

Nicholas Machen is listed as Managing Director at Jefferies, a with 7751 employees, based in New York, United States. AeroLeads shows a work email signal at citi.com and a matched LinkedIn profile for Nicholas Machen.

Nicholas Machen previously worked as Managing Director at Citi and Global Head of Business Tax Advisory at Citi. Nicholas Machen holds Bachelor Of Arts (B.A.), Philosophy from Harvard University.

Company email context

Email format at Jefferies

This section adds company-level context without repeating Nicholas Machen's masked contact details.

{first}.{last}@citi.com
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AeroLeads found 1 current-domain work email signal for Nicholas Machen. Compare company email patterns before reaching out.

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Profile bio

About Nicholas Machen

Nicholas Machen is a Managing Director at Jefferies. He possess expertise in legal research, legal writing, westlaw, criminal law, litigation.

Listed skills include Legal Research, Legal Writing, Westlaw, Criminal Law, and 1 others.

Current workplace

Nicholas Machen's current company

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

Jefferies
Jefferies
Managing Director
New York, NY, US
Website
jefferies.com
Employees
7751
AeroLeads page
Company profile
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9 roles

Nicholas Machen work experience

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

Managing Director

Jefferies

New York, Ny, Us

Managing Director

Current
Citi

New York, New York, Us

Jan 2023 - Present

Global Head Of Business Tax Advisory

Current
Citi

New York, New York, Us

Jan 2023 - Present

Head Of Tax - Icg

Current
Citi

New York, New York, Us

Jan 2021 - Present

Tax Counsel

Current
Citi

New York, New York, Us

Jan 2018 - Present

Head Of Tax - Markets, Bcma

Citi

New York, New York, Us

Mar 2020 - Jan 2021

Extern

United States Court Of Appeals For The Fifth Circuit
Sep 2012 - May 2013
Team & coworkers

Colleagues at Jefferies

Other employees you can reach at jefferies.com. View company contacts for 7751 employees →

AD Amy Davis Amy Davis Colleague at JefferiesDallas-Fort Worth Metroplex, United States View → CS Channel Snow-Vasquez Channel Snow-Vasquez Colleague at JefferiesAlbany, New York Metropolitan Area, United States View → NF Nicolle Ford Nicolle Ford Colleague at JefferiesEssex, England, United Kingdom View → RH Rosa Hibbert-Keene Rosa Hibbert-Keene Colleague at JefferiesLondon, England, United Kingdom View → MA Mariano Azurduy Mariano Azurduy Colleague at JefferiesNew York, United States View → SM Simon Martin Laurin Simon Martin Laurin Colleague at JefferiesMontreal, Quebec, Canada View → SP Sreejith Pookotty Sreejith Pookotty Colleague at JefferiesStamford, Connecticut, United States View → DM Diana Mirabal Diana Mirabal Colleague at JefferiesMiami, Florida, United States View → RC Rohit Chakka Rohit Chakka Colleague at JefferiesUnited States View → MR Marcus Rivaldi Marcus Rivaldi Colleague at JefferiesLondon, England, United Kingdom View →
2 education records

Nicholas Machen education

Bachelor Of Arts (B.A.), Philosophy

Harvard University

Doctor Of Law (Jd)

Tulane University Law School
FAQ

Frequently asked questions about Nicholas Machen

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

What company does Nicholas Machen work for?

Nicholas Machen works for Jefferies.

What is Nicholas Machen's role at Jefferies?

Nicholas Machen is listed as Managing Director at Jefferies.

What is Nicholas Machen's email address?

AeroLeads has found 1 work email signal at @citi.com for Nicholas Machen at Jefferies.

Where is Nicholas Machen based?

Nicholas Machen is based in New York, United States while working with Jefferies.

What companies has Nicholas Machen worked for?

Nicholas Machen has worked for Jefferies, Citi, Davis Polk & Wardwell Llp, United States Court Of Appeals For The Fifth Circuit, and Manhattan District Attorney'S Office.

Who are Nicholas Machen's colleagues at Jefferies?

Nicholas Machen's colleagues at Jefferies include Amy Davis, Channel Snow-Vasquez, Nicolle Ford, Rosa Hibbert-Keene, and Mariano Azurduy.

How can I contact Nicholas Machen?

You can use AeroLeads to view verified contact signals for Nicholas Machen at Jefferies, including work email, phone, and LinkedIn data when available.

What schools did Nicholas Machen attend?

Nicholas Machen holds Bachelor Of Arts (B.A.), Philosophy from Harvard University.

What skills is Nicholas Machen known for?

Nicholas Machen is listed with skills including Legal Research, Legal Writing, Westlaw, Criminal Law, and Litigation.

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