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Simplex Trading LLC Employee Directory

Financial ServicesIllinois, United States51-200 Employees

Simplex Trading LLC is a technology-driven proprietary market-making firm within the financial services sector. Founded around 2004 and based in Chicago, Illinois, the company operates as a mid-sized organization that emphasizes its own software and analytics to create and capitalize on financial opportunities across markets. It brings together technologists and data-driven traders to optimize existing trading strategies and develop new ones, with a focus on continuously advancing automation and market efficiency.

As a market maker in equity options, Simplex Trading participates in liquidity provision and price discovery in fast-moving markets. In 2024 the firm appointed Benjamin Londergan as Managing Director of Strategic Business Development to lead growth efforts.

Find Simplex Trading LLC employees' phone numbers or email addresses

Simplex Trading LLC Global Highlights

Location
Employees

North America
140

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  • United States Of America
    131
  • Barbados
    9

Asia
5

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  • India
    4
  • United Arab Emirates
    1

Simplex Trading LLC's Leadership

  • Owner at Simplex Trading LLC
    N. D.
    Owner
    Mobile Phone
  • Proprietor at Simplex Trading LLC
    S. K.
    Proprietor
    Mobile Phone
  • Co-Adventurer at Simplex Trading LLC
    C. M.
    Co-Adventurer
    Mobile Phone
  • Managing Member at Simplex Trading LLC
    P. M.
    Managing Member
    Mobile Phone

Simplex Trading LLC Employee Metrics

100%
50%
0%
2026
2025
  • Engineering
  • Entrepreneurship
  • Banking
  • Information Technology
  • Accounting
  • Other
  • Finance

Contact profiles from Simplex Trading LLC

Name
Title
Contact
Location
Last Update
  • Owner at Simplex Trading LLC
    N. D.
    Owner
    Mobile Phone
    Aug 03, 2026
  • Proprietor at Simplex Trading LLC
    S. K.
    Proprietor
    Mobile Phone
    India, Maharashtra
    Aug 05, 2026
  • Co-Adventurer at Simplex Trading LLC
    C. M.
    Co-Adventurer
    Mobile Phone
    Oct 22, 2024
  • Managing Member at Simplex Trading LLC
    P. M.
    Managing Member
    Mobile Phone
    Oct 22, 2024

Frequently Asked Questions

What is Simplex Trading LLC known for?

Minus sign iconPlus sign iconSimplex Trading LLC was founded in 2004 and operates in the Financial Services industry. You can contact Simplex Trading LLC's main corporate office by phone at
+1-312-360-****
. Explore Simplex Trading LLC's company overview page for more information.

What is Simplex Trading LLC's most common email format?

Minus sign iconPlus sign iconSimplex Trading LLC employees' email format typically follows the pattern of FLast@simplexinvestments.com. Trying to find reliable and up-to-date employee contact data? Find more Simplex Trading LLC email formats with LeadIQ.

How many employees does Simplex Trading LLC have currently?

Minus sign iconPlus sign iconSimplex Trading LLC has approximately 126 employees as of August 2026. These team members are located across 2 continents, including North America and Asia.

Who are Simplex Trading LLC's key employees and leadership?

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As of August 2026, Simplex Trading LLC's key employees include:

  • Owner: N. D.
  • Proprietor: S. K.
  • Co-Adventurer: C. M.
  • Managing Member: P. M.

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