AeroLeads people directory · profile

James O'Brien Email & Phone Number

General Partner at Sienna Oaks LLC
Location: Los Gatos, California, United States 8 work roles 1 school
1 work email found @medline.com 1 phone found area 847 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 1 phone

Work email j****@medline.com
Direct phone (847) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Sienna Oaks LLC
Role
General Partner
Location
Los Gatos, California, United States

Who is James O'Brien? Overview

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

Quick answer

James O'Brien is listed as General Partner at Sienna Oaks LLC, based in Los Gatos, California, United States. AeroLeads shows a work email signal at medline.com, phone signal with area code 847, and a matched LinkedIn profile for James O'Brien.

James O'Brien previously worked as Advisory Board at Minerva Cq (Collabortive Intelligence) and Advisor at Eclipz.Io, Inc.. James O'Brien holds Bachelor Of Engineering (B.E.) from Illinois Institute Of Technology.

Company email context

Email format at Sienna Oaks LLC

This section adds company-level context without repeating James O'Brien's masked contact details.

{first}_{last}@medline.com
86% confidence

AeroLeads found 1 current-domain work email signal for James O'Brien. Compare company email patterns before reaching out.

Profile bio

About James O'Brien

Experienced entrepreneur with a strong background in Enterprise sales, fund raising, financial analysis, and business development. Strengths focus on managing complex business problems and balancing opportunities and risks in the decision process.

Listed skills include Financial Modeling, Investments, Investment Properties, Options Strategies, and 7 others.

Current workplace

James O'Brien's current company

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

Sienna Oaks LLC
Sienna Oaks Llc
General Partner
Los Gatos, CA, US
8 roles

James O'Brien work experience

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

General Partner

Sienna Oaks Llc

Los Gatos, Ca, Us

Advisory Board

Minerva Cq (Collabortive Intelligence)

Advisor

Eclipz.Io, Inc.

Member

Catalyst Operating Advisors

General Partner

Sienna Oaks Llc

Residential real estate developer focused on in infill projects in high-demand areas with excellent schools and easy access to Silicon Valley's leading companies. Responsibilities include participation in the development process from conception to completion including: land acquisition, feasibility analysis, and negotiation and execution of financing documents.

Options Trader

Jim O'Brien

Multi-year track record of achieving consistent, risk adjusted returns. I am focused on weekly and monthly options trading mainly on indices and use strategies such as Condors, Butterflies and Credit Spreads. I analyze risk protection through multiple long term hedges and have a strong understanding and experience using trading technology.

Sales Manager

Us

Highly motivated sales representative with a proven track record in setting and achieving strategic goals in commercial, industrial, and enterprise accounts. Identified opportunities in new accounts, expanded the existing customer base and grew existing key accounts. I was named as US salesman of the year in 2005.

Apr 2004 - Sep 2008

Director Of Us Sales

Primary account owner for US accounts managing a team of sales and application engineers. Managed and evaluated the sales pipeline to develop quality leads, customer projects, design wins. Established commercial forecasts and consistently achieved sales goals. Developed account strategy, penetration plan and build solid customer senior management relationships. Parthus, a public company achieved a market capitalization of $3B during the three years I worked there.

Feb 2000 - Dec 2003
1 education record

James O'Brien education

  • Illinois Institute Of Technology
    Illinois Institute Of Technology
    Bachelor Of Engineering (B.E.)
FAQ

Frequently asked questions about James O'Brien

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

What company does James O'Brien work for?

James O'Brien works for Sienna Oaks LLC.

What is James O'Brien's role at Sienna Oaks LLC?

James O'Brien is listed as General Partner at Sienna Oaks LLC.

What is James O'Brien's email address?

AeroLeads has found 1 work email signal at @medline.com for James O'Brien at Sienna Oaks LLC.

What is James O'Brien's phone number?

AeroLeads has found 1 phone signal(s) with area code 847 for James O'Brien at Sienna Oaks LLC.

Where is James O'Brien based?

James O'Brien is based in Los Gatos, California, United States while working with Sienna Oaks LLC.

What companies has James O'Brien worked for?

James O'Brien has worked for Sienna Oaks Llc, Minerva Cq (Collabortive Intelligence), Eclipz.Io, Inc., Catalyst Operating Advisors, and Jim O'Brien.

How can I contact James O'Brien?

You can use AeroLeads to view verified contact signals for James O'Brien at Sienna Oaks LLC, including work email, phone, and LinkedIn data when available.

What schools did James O'Brien attend?

James O'Brien holds Bachelor Of Engineering (B.E.) from Illinois Institute Of Technology.

What skills is James O'Brien known for?

James O'Brien is listed with skills including Financial Modeling, Investments, Investment Properties, Options Strategies, Index Options, Stock Trading, Sales Management, and Sales.

Find 750M verified contacts

Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.