John O'Brien, Esq
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John O'Brien, Esq Email & Phone Number

Real Estate Broker/Developer/Chief Legal Officer at Ventum Biotech
Location: Cambridge, Massachusetts, United States 9 work roles 3 schools
1 work email found @commonmoves.com LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email

Work email j****@commonmoves.com
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Current company
Role
Real Estate Broker/Developer/Chief Legal Officer
Location
Cambridge, Massachusetts, United States
Company size

Who is John O'Brien, Esq? Overview

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Quick answer

John O'Brien, Esq is listed as Real Estate Broker/Developer/Chief Legal Officer at Ventum Biotech, a company with 5 employees, based in Cambridge, Massachusetts, United States. AeroLeads shows a work email signal at commonmoves.com and a matched LinkedIn profile for John O'Brien, Esq.

John O'Brien, Esq previously worked as Chief Legal Officer at Ventum Biotech and Attorney at Law Office Of John I. O'Brien. John O'Brien, Esq holds Doctor Of Law (J.D.), Law from New England School Of Law.

Company email context

Email format at Ventum Biotech

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*@commonmoves.com
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AeroLeads found 1 current-domain work email signal for John O'Brien, Esq. Compare company email patterns before reaching out.

Profile bio

About John O'Brien, Esq

Seasoned corporate and real estate lawyer with a deep understanding of intricate legal frameworks and a sharp focus on mitigating risks. Real Estate Attorney specializing in Real Estate Closings both Seller and BuyerExperienced Real Estate Broker servicing all of Massachusetts, New Hampshire, Rhode Island, and Vermont

Listed skills include Security, Corporate Security, Security Operations, Physical Security, and 11 others.

Current workplace

John O'Brien, Esq's current company

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

Ventum Biotech
Ventum Biotech
Real Estate Broker/Developer/Chief Legal Officer
new york, new york, united states
Employees
5
AeroLeads page
9 roles · 11 years

John O'Brien, Esq work experience

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

Chief Legal Officer

Current

Boston, Massachusetts, United States

Apr 2024 - Present

Attorney

Current
Law Office Of John I. O'Brien

North Reading, Massachusetts, United States

Represent clients in Real Estate purchase and sale negotiations and closings, wills, estates and trusts creation.

Dec 2012 - Present

Real Estate Broker

Current
Bhhs Commonwealth
Oct 2017 - Present

Attorney

Current
Law Office Of John O'Brien

Wakefield, MA

Represent Clients in Bankruptcy, Real Estate, Family Law

Jan 2012 - Present

Broker/Owner

Ruddy Duck Real Estate

Wakefield, MA

Represent individuals looking to buy or sell a home in Massachusetts.

2015 - Oct 2017

Independent Buyers Broker

We'll help you evaluate properties by giving you objective feedback (even if it means giving you reasons not to buy), answer questions and provide advice on home loans, first-time home buyer programs, market value, price negotiations, home inspections and, of course, matters specifically related to single-family homes, condominiums and/or multi-family.

Apr 2014 - 2016

Global Security Manager

Ptc

Responsibility and accountability for driving and managing the corporate security function on a global basis. Responsibilities include: managing corporate security programs, security operations, outsourced security services, security administration, investigations and security systems on a worldwide basis for the protection of people, property and assets.

Oct 2004 - Oct 2012

Account Manager

Allied Barton Security

Responsibilities include overseeing all aspects of an 1352-hour per week account, to include scheduling, payroll, and staffing needs of this 40 plus security officer contract. Coordinated with Security Director to implement a new Security Command Center that monitors worldwide cameras and emergencies. Responsible for creating Security Post Orders..

Dec 2001 - Oct 2004
3 education records

John O'Brien, Esq education

FAQ

Frequently asked questions about John O'Brien, Esq

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

What company does John O'Brien, Esq work for?

John O'Brien, Esq works for Ventum Biotech.

What is John O'Brien, Esq's role at Ventum Biotech?

John O'Brien, Esq is listed as Real Estate Broker/Developer/Chief Legal Officer at Ventum Biotech.

What is John O'Brien, Esq's email address?

AeroLeads has found 1 work email signal at @commonmoves.com for John O'Brien, Esq at Ventum Biotech.

Where is John O'Brien, Esq based?

John O'Brien, Esq is based in Cambridge, Massachusetts, United States while working with Ventum Biotech.

What companies has John O'Brien, Esq worked for?

John O'Brien, Esq has worked for Ventum Biotech, Law Office Of John I. O'Brien, Bhhs Commonwealth, Law Office Of John O'Brien, and Century 21 Commonwealth.

Who are John O'Brien, Esq's colleagues at Ventum Biotech?

John O'Brien, Esq's colleagues at Ventum Biotech include Dan Bandar.

How can I contact John O'Brien, Esq?

You can use AeroLeads to view verified contact signals for John O'Brien, Esq at Ventum Biotech, including work email, phone, and LinkedIn data when available.

What schools did John O'Brien, Esq attend?

John O'Brien, Esq holds Doctor Of Law (J.D.), Law from New England School Of Law.

What skills is John O'Brien, Esq known for?

John O'Brien, Esq is listed with skills including Security, Corporate Security, Security Operations, Physical Security, Management, Surveillance, Access Control, and Private Investigations.

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