Kleos

kleos.fm

Boston, Massachusetts, United States

1-10 employees

LinkedIn Profile

About Kleos

marketing services, digital marketing, services, funnel optimization, online growth, paid advertising campaigns, growth hacking, b2b, public relations, personalized marketing, social media marketing, website design, brand building, paid media, performance marketing, brand awareness, conversion rate optimization, web design and landing pages, multi-channel ecosystem, sms marketing campaigns

Kleos's Tech Stack

AI/ML

Decision Makers at Kleos

1 contact

Kosta Hantzis

Founder

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7 technologies detected · 1 decision maker · Emails available

Sales Outreach Angle

AWS infrastructure signals engineering sophistication. This company likely evaluates cloud cost management, security tooling, observability, and developer productivity solutions.

Kleos's Position in the StackWho Database

• Kleos is 1 of 80,546 marketing & advertising companies tracked in StackWho.
• 80,503 marketing & advertising companies in our database have verified decision-maker emails (100% of the cohort).
• 10,409 companies in Massachusetts are in the StackWho database.
• 56,565 marketing & advertising companies are in the 1-10 employee range (same size as Kleos).

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 Kleos use?

Kleos uses Gmail, Google Apps, Amazon AWS, Mobile Friendly, Circle, Render, and 1 more technologies. This data is sourced from StackWho's technology detection engine.

How do I contact the decision makers at Kleos?

StackWho has verified email addresses for 1 decision maker at Kleos. Pro members can access direct emails for the CEO, CTO, VP of Engineering, and other key contacts. Use StackWho to reach Kleos directly for sales, recruiting, or partnerships.

What industry is Kleos in?

Kleos operates in the marketing & advertising industry, headquartered in Boston, Massachusetts, United States. StackWho tracks technology stacks and decision maker contacts for companies across all industries.

Can I export Kleos's contact data?

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