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Portia Kersten Email & Phone Number

Consulting and Fractional Chief Financial Officer at Change.org
Location: San Francisco, California, United States 13 work roles 3 schools
1 work email found @firstbasehq.com 11 phones found area 415, 510, 614, 404, and 888 LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 11 phones

Work email p****@firstbasehq.com
Direct phone (415) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Consulting and Fractional Chief Financial Officer
Location
San Francisco, California, United States

Who is Portia Kersten? Overview

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Quick answer

Portia Kersten is listed as Consulting and Fractional Chief Financial Officer at Change.org, based in San Francisco, California, United States. AeroLeads shows a work email signal at firstbasehq.com, phone signal with area code 415, 510, 614, 404, 888, and a matched LinkedIn profile for Portia Kersten.

Portia Kersten previously worked as Consulting/Fractional Chief Financial Officer at Self-Employed and Audit & Risk Committee Member at Change.Org. Portia Kersten holds Mba, Finance from Columbia Business School.

Company email context

Email format at Change.org

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{first}@firstbasehq.com
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AeroLeads found 1 current-domain work email signal for Portia Kersten. Compare company email patterns before reaching out.

Profile bio

About Portia Kersten

I partner with founders, entrepreneurs and emerging growth companies to raise capital, build business models, tackle day-to-day finance operations, operationalize for scale, and achieve successful exits.

Listed skills include Start Ups, Private Equity, Due Diligence, Strategic Planning, and 9 others.

Current workplace

Portia Kersten's current company

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

Change.org
Change.Org
Consulting and Fractional Chief Financial Officer
San Francisco, CA, US
AeroLeads page
13 roles

Portia Kersten work experience

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

Consulting And Fractional Chief Financial Officer

San Francisco, CA, US

Consulting/Fractional Chief Financial Officer

Current
Self-Employed

I work with founders, entrepreneurs and emerging growth companies raise capital, build business models, tackle day-to-day finance, accounting and payroll needs, operationalize for scale, and achieve successful exits.

Nov 2022 - Present

Audit & Risk Committee Member

Current

San Francisco, CA, US

Member of Audit & Risk Committee.

Jul 2022 - Present

Consulting/Fractional Cfo

Menlo Park, California, US

Consulting/Fractional CFO. Series A and B financings. Financial operations.

Jan 2023 - Apr 2024

Cfo

New York City, US

Apr 2022 - Nov 2022

Interim Cfo, Co-Founder & Partner

San Francisco, CA, US

Attivo Partners is a full service Finance and Accounting firm. We help founders, entrepreneurs and emerging growth companies raise capital, build business models, tackle day-to-day finance, accounting and payroll needs, operationalize for scale, and achieve successful exits.We have knowledge and insights into the venture-backed, emerging growth community.

Nov 2017 - Apr 2022

Consulting Cfo

Consulting CFO for various venture backed startups in Silicon Valley.

Feb 2016 - Nov 2017

Cfo

Skout.Com

Skout is mobile software application company backed by Andreessen Horowitz and various Angels. Acquired in 2016.

Aug 2011 - Feb 2016

Cfo

Adinfuse, Inc./Velti Plc

AdInfuse, Inc. was an early mobile advertising technology platform company backed by Softbank, Velocity, and Storm Ventures. Acquired by Velti, PLC in Q2 2009. Velti F-1 filed in 2010.

Mar 2008 - May 2010

Cfo

Teebeedee, Inc.

TeeBeeDee, Inc., was an early stage social networking company backed by Ron Conway, Shasta Ventures and Monitor Venture Capital. Company is defunct.

Jul 2006 - Mar 2008

Vp, Corporate Development & Finance

US

PlanetOut, Inc. was a large, profitable, Web 1.0 media company. IPO in 2004. Managed IPO process with CFO. Acquired by Here Media, Inc. in 2009.

Sep 2002 - May 2006

Asst. Vice President

Boston, MA, US

GE Equity is GE Capital’s principal investing arm. Part of investment team. Focus on investments in software companies, Series C or later and some PIPEs. Board Observer on several portfolio company Boards.

Oct 1999 - Jan 2002

Scientist/Engineer

Worked in a technical capacity on various major transportation infrastructure and energy projects in the US and internationally.

Jan 1992 - Apr 1997
3 education records

Portia Kersten education

Mba, Finance

Columbia Business School

Ms, Transportation Planning & Urban Design

The Ohio State University

Ba

The Ohio State University
FAQ

Frequently asked questions about Portia Kersten

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

What company does Portia Kersten work for?

Portia Kersten works for Change.org.

What is Portia Kersten's role at Change.org?

Portia Kersten is listed as Consulting and Fractional Chief Financial Officer at Change.org.

What is Portia Kersten's email address?

AeroLeads has found 1 work email signal at @firstbasehq.com for Portia Kersten at Change.org.

What is Portia Kersten's phone number?

AeroLeads has found 11 phone signal(s) with area code 415, 510, 614, 404, 888 for Portia Kersten at Change.org.

Where is Portia Kersten based?

Portia Kersten is based in San Francisco, California, United States while working with Change.org.

What companies has Portia Kersten worked for?

Portia Kersten has worked for Self-Employed, Change.Org, Midi Health, Firstbase, and Attivo Partners.

How can I contact Portia Kersten?

You can use AeroLeads to view verified contact signals for Portia Kersten at Change.org, including work email, phone, and LinkedIn data when available.

What schools did Portia Kersten attend?

Portia Kersten holds Mba, Finance from Columbia Business School.

What skills is Portia Kersten known for?

Portia Kersten is listed with skills including Start Ups, Private Equity, Due Diligence, Strategic Planning, Financial Modeling, Mergers, Ipo, and Budgets.

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