What technologies does Calamos Investments use?

Calamos Investments uses Cloudflare DNS, UltraDns, Sendgrid, Outlook, Pardot. View their full technology stack — including all 17 detected tools — on StackWho.

Who is the CTO of Calamos Investments?

Andy Konchan is the CTO at Calamos Investments. Get verified contact information on StackWho.

Where is Calamos Investments located?

Calamos Investments is based in Naperville, Illinois, United States.

Calamos Investments

Q: Who is the Senior Vice President, Co-CIO, Head of International & Global Strategies, Senior Portfolio Manager of Calamos Investments?

Nicholas Niziolek is the Senior Vice President, Co-CIO, Head of International & Global Strategies, Senior Portfolio Manager at Calamos Investments. Get verified contact information on StackWho.

calamos.com

financial services

calamos.com

Naperville, Illinois, United States

201-500 employees

230880000 revenue

LinkedIn Profile

About Calamos Investments

equity, convertibles, fixed income, alternatives, long, short, sustainable, bitcoin etfs, etfs, finance, investment bankers/brokers/service, financial services

Calamos Investments's Tech Stack

AI/ML

Decision Makers at Calamos Investments

3 contacts

Nicholas Niziolek

Senior Vice President, Co-CIO, Head of International & Global Strategies, Senior Portfolio Manager

n***@calamos.com Sign up to view

Andy Konchan

CTO

a***@calamos.com Sign up to view

William Heller

VP Director of Data Engineering

b***@calamos.com Sign up to view

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17 technologies detected · 3 decision makers · Emails available

Sales Outreach Angle

Calamos Investments operates in financial services. Strong sales angles include risk reduction, compliance automation, fraud prevention, and reporting/analytics tools.

Calamos Investments's Position in the StackWho Database

• Calamos Investments is 1 of 21,667 financial services companies tracked in StackWho.
• 21,586 financial services companies in our database have verified decision-maker emails (100% of the cohort).
• 11,640 companies in Illinois are in the StackWho database.
• 1,120 financial services companies are in the 201-500 employee range (same size as Calamos Investments).

Technology detection from public web signals. Decision-maker contacts compiled from LinkedIn public profiles, company filings, and verified outbound testing. Methodology & sources · Updated July 2026.

Frequently Asked Questions

What technology does Calamos Investments use?

Calamos Investments uses Cloudflare DNS, UltraDns, Sendgrid, Outlook, Pardot, Microsoft Office 365, and 11 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Calamos Investments?

StackWho has verified email addresses for 3 decision makers at Calamos Investments. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Calamos Investments directly for sales, recruiting, or partnerships.

What industry is Calamos Investments in?

Calamos Investments operates in the financial services industry, headquartered in Naperville, Illinois, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Calamos Investments's contact data?

Yes. StackWho Pro members can export decision maker contact data for Calamos Investments and similar companies to CSV. Use the export feature to build targeted prospect lists segmented by technology stack, industry, or location.