Executives/Pegasystems CEO
Alan Trefler, CEO of Pegasystems

Who is the CEO of Pegasystems in 2026?

Alan Trefler is the Chief Executive Officer and Founder of Pegasystems. Alan has held the CEO seat since 1983, and was previously Senior Project Manager at Casher Associates.

Updated September 24, 2026
Time in seat
43 years
CEO since 1983
Career span
48 years
First recorded role January 1978
Founded
1983
Founder of Pegasystems
Summary
  • Alan Trefler founded Pegasystems in April 1983 and has led it as CEO ever since.
  • Alan Trefler was Funds Transfer Product Manager at Tmi Systems Ltd. from January 1980 to January 1983.
  • Alan Trefler studied at Dartmouth College.

Current company

Pegasystems

Pegasystems is an American software company.

software industryHeadquartered in WalthamFounded 1983Nasdaq: PEGA

Source: Wikipedia

Career and education

Alan Trefler has been CEO of Pegasystems since 1983. Before Pegasystems, Alan was Senior Project Manager at Casher Associates from January 1978 until January 1980.

Career

  1. Pegasystems1983 to present
    • Founder and CEO
  2. Tmi Systems Ltd.1980 to 1983
    • Funds Transfer Product Manager
  3. Casher Associates1978 to 1980
    • Senior Project Manager

Sources: LinkedIn profile

Education

Dartmouth CollegeSource

Decision makers by function

100+ decision makers at Pegasystems in Unify, vice president level and above. Choose a function to see who leads it.

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Top decision makers at Pegasystems

Vice president level and above, most senior first
Dan NashSenior Vice President, Finance · USA@pega.com
Benjamin Yrun OstapukChief Legal Officer · USA@pega.com
Jackie McKinleySVP, Head of Enterprise Sales for North and South America at Pega · USA@pega.com
Kieran TarrantSVP Sales and Managing Director, EMEA at Pegasystems · GBR@pega.com
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Leadership team at Pegasystems

Alan Trefler leads a leadership team of 6 published executives. The most recent appointment is John Higgins as Chief of Client & Partner Success, in seat since March 2022.

Most senior 5 of 6

NameTitleIn seat since
Alan TreflerChief Executive Officer and Chairman of the Board of Directors1983
Kenneth StillwellChief Operating Officer and Chief Financial OfficerApril 2021
Kerim AkgonulChief Product OfficerApril 2021
Efstathios KouninisChief Accounting Officer and TreasurerMay 2008
Leon TreflerChief of Clients and MarketsFebruary 2022

Sources: Pegasystems 2026 DEF 14A

Frequently asked questions

Who is the CEO of Pegasystems?

Alan Trefler is the Chief Executive Officer and Founder of Pegasystems. Alan has held the CEO seat since 1983, and was previously Senior Project Manager at Casher Associates.

When did Alan Trefler become CEO of Pegasystems?

Alan Trefler has been CEO of Pegasystems since 1983, according to LinkedIn profile.

What did Alan Trefler do before Pegasystems?

Alan Trefler was Senior Project Manager at Casher Associates from January 1978 until January 1980, according to LinkedIn profile.

How long has Alan Trefler been CEO of Pegasystems?

Alan Trefler has been CEO of Pegasystems for 43 years, since 1983.

Who else leads Pegasystems?

Kenneth Stillwell (Chief Operating Officer and Chief Financial Officer), Kerim Akgonul (Chief Product Officer), Efstathios Kouninis (Chief Accounting Officer and Treasurer), Leon Trefler (Chief of Clients and Markets), and 1 more. Source: Pegasystems 2026 DEF 14A.

Reach Pegasystems' decision makers

100+ leaders at vice president level and above, with verified work emails and phone numbers in Unify.

Methodology

The seat holder is identified in Unify's professional profile dataset, then confirmed against the company's published leadership page, its SEC filings, and Wikipedia before publication. Career and education rows carry the public document they were taken from. Leadership team membership follows the company's own leadership page; in-seat dates come from filings where available and otherwise from the profile record. Company figures are read from the Unify headcount page for the same company and are profile coverage measures, never company-reported workforce totals. The employee preview lists vice president and senior vice president level profiles by department. No personal contact details are published.

Identity confirmed against Wikipedia, Pegasystems. Last verified: September 24, 2026.