Jonathan Klahr
AeroLeads people directory · profile

Jonathan Klahr Email & Phone Number

Location: Israel, Israel, Israel 22 work roles 3 schools
2 work emails found @sgep.com 7 phones found area 646, 610, and 212 LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 2 work emails · 7 phones

Work email j****@sgep.com
Direct phone (646) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Role
Director
Location
Israel, Israel, Israel
Company size

Who is Jonathan Klahr? Overview

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

Quick answer

Jonathan Klahr is listed as Director at Cymulate - Breach & Attack Simulation, a company with 289 employees, based in Israel, Israel, Israel. AeroLeads shows a work email signal at sgep.com, phone signal with area code 646, 610, 212, and a matched LinkedIn profile for Jonathan Klahr.

Jonathan Klahr previously worked as Growth Equity Investor at Susquehanna Growth Equity (Sge) and Board Member at Glassbox. Jonathan Klahr holds Mba from The Hebrew University Of Jerusalem.

Company email context

Email format at Cymulate - Breach & Attack Simulation

This section adds company-level context without repeating Jonathan Klahr's masked contact details.

{first}.{last}@sgep.com
89% confidence

AeroLeads found 2 current-domain work email signals for Jonathan Klahr. Compare company email patterns before reaching out.

Profile bio

About Jonathan Klahr

Investor who looks to invest in exceptional leaders who are building innovative technology companies in the software, information services, internet and financial technology sectors. Provide support and strategic guidance to portfolio companies.Strong, extensive network.Specialties: Venture investments, software expertise, internet infrastructure, security and eneterpise sofware, Israeli hi-tech industry

Listed skills include Venture Capital, Business Strategy, Enterprise Software, Start Ups, and 23 others.

Current workplace

Jonathan Klahr's current company

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

Cymulate - Breach & Attack Simulation
Cymulate - Breach & Attack Simulation
Director
Israel
Website
Employees
289
AeroLeads page
22 roles · 28 years

Jonathan Klahr work experience

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

Growth Equity Investor

Current

Bala Cynwyd, PA, US

At Susquehanna I lead investments in innovative, fast-growing companies in the internet, payments and software industries.

Aug 2007 - Present

Board Member

Current

London, England, GB

Glassbox provides a digital experience analytics solution that has best-in-class real-time recording of user's sessions.

Dec 2024 - Present

Board Member

Current

Cambridge, GB

Speechmatics provide the most accurate, most multi-lingual, speech API ever released.

Jul 2022 - Present

Board Member

Current

Dublin 7, Dublin, IE

Phorest’s software platform enables salon owners to manage and grow their businesses.

May 2018 - Present

Director

Current

New York, NY, US

Cymulate is an SaaS based cyber-attack simulation company that helps large organizations with complex security postures safeguard their business critical assets. Cymulate’s unique cyber simulation platform assesses the security preparedness of our customers’ systems.

Mar 2017 - Present

Board Member

Current

US CourtScript was established in 2020 to consolidate the fragmented court room reporting and transcription industry. The company specializes in developing technological tools combined with personalized client service to enable clients and users to work more efficiently, resulting in the highest quality, cost effective transcription solutions.

Jan 2020 - Present

Board Member

Current

CallApp provides users with the right info & tools whenever they communicate with anyone – even if that contact is not in their phonebook.

Dec 2014 - Present

Board Member

Current

Boston, Massachusetts, US

Mend.io, formerly known as WhiteSource, offers an enterprise suite of application security tools designed to help you build and manage a mature, proactive AppSec program.

Jun 2024 - Present

Board Member

London, England, GB

Board Intelligence provide software solutions to transform boards and leadership teams into a powerful driver of performance and a force for good.

Nov 2020 - Aug 2024

Board Member

San Jose, CA, US

Service providers, systems integrators, and equipment vendors use the solution to discover, design, quote, and propose deployable network solutions.

Jan 2010 - Nov 2021

Board Member

New York, US

Outbrain empowers consumers to discover new content through a novel recommendation platform that connects thousands of publishers around the world.

Jan 2015 - Jul 2021

Board Member

Denver, Colorado, US

Poppulo’s pioneering software is transforming internal communications, creating more connected, aligned and successful organizations all over the world.

Jan 2019 - Mar 2021

Board Member

Seattle, Washington, US

Graduway’s software provides an easy and simple way for institutions to engage their alumni, students, and supporters through a powerful platform – enabling them to connect with each other.

Dec 2017 - Apr 2018

Board Member

Holmdel, New Jersey, US

iCIMS Talent Platform enables growing organizations to manage their entire candidate management lifecycle within a single SaaS application.

Jan 2012 - Dec 2016

Board Member

San Francisco, California, US

Supported Gidi and the Skybox team as they grew the business leading to the successful sale to Providence Private Equity Partners in 2016

Oct 2011 - Apr 2016

Board Member

Austin, Texas, US

Oct 2010 - Jan 2016

Board Member

The Logic Group

Supported the Logic Group management team as they expanded and grew the business leading to the successful sale to Barclays

Aug 2011 - Nov 2014

Board Member

Versafe

Supported Eyal and his team as they developed the product and grew the business leading to the successful sale to F5.

Dec 2012 - Aug 2013

Chairman

Boston, MA, US

Worked with Hagai Tal and his team supporting them as they grew Plimus leading to the successful sale to Great Hill Partners.

Jul 2008 - Sep 2011

Principal

IL

Responsible for the sourcing and diligence of potential investments. Accompany investments through the deal-making and closure of investment agreements. Provide support to portfolio companies after investment completion. Led investments in Gigaspaces, FraudSciences, SupportSpace, Pando, HumanEyes.

Jan 2000 - Sep 2007

Director International Marketing

Eshbel Technologies
1998 - 1999 ~1 yr
Team & coworkers

Colleagues at Cymulate - Breach & Attack Simulation

Other employees you can reach at cymulate.com. View company contacts for 289 employees →

3 education records

Jonathan Klahr education

Mba

The Hebrew University Of Jerusalem

Ba, War Studies

King'S College London

Education record

Haberdasher'S Aske'S
FAQ

Frequently asked questions about Jonathan Klahr

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

What company does Jonathan Klahr work for?

Jonathan Klahr works for Cymulate - Breach & Attack Simulation.

What is Jonathan Klahr's role at Cymulate - Breach & Attack Simulation?

Jonathan Klahr is listed as Director at Cymulate - Breach & Attack Simulation.

What is Jonathan Klahr's email address?

AeroLeads has found 2 work email signals at @sgep.com for Jonathan Klahr at Cymulate - Breach & Attack Simulation.

What is Jonathan Klahr's phone number?

AeroLeads has found 7 phone signal(s) with area code 646, 610, 212 for Jonathan Klahr at Cymulate - Breach & Attack Simulation.

Where is Jonathan Klahr based?

Jonathan Klahr is based in Israel, Israel, Israel while working with Cymulate - Breach & Attack Simulation.

What companies has Jonathan Klahr worked for?

Jonathan Klahr has worked for Cymulate - Breach & Attack Simulation, Susquehanna Growth Equity (Sge), Glassbox, Speechmatics, and Phorest Salon Software.

Who are Jonathan Klahr's colleagues at Cymulate - Breach & Attack Simulation?

Jonathan Klahr's colleagues at Cymulate - Breach & Attack Simulation include Evandro Batista, Dima Briskin, Lior Tabak, Gaurav Pathak, and Pratik Shanbhag.

How can I contact Jonathan Klahr?

You can use AeroLeads to view verified contact signals for Jonathan Klahr at Cymulate - Breach & Attack Simulation, including work email, phone, and LinkedIn data when available.

What schools did Jonathan Klahr attend?

Jonathan Klahr holds Mba from The Hebrew University Of Jerusalem.

What skills is Jonathan Klahr known for?

Jonathan Klahr is listed with skills including Venture Capital, Business Strategy, Enterprise Software, Start Ups, Strategy, Strategic Partnerships, Investments, and Management.

Find 750M verified contacts

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