Insights

Sustainability leadership Clarke positions itself as an environmentally responsible vector control provider with a strong emphasis on reducing environmental footprint and sustainable practices, presenting an opportunity to sell premium, eco-friendly public health solutions to clients seeking green certifications and improved community impact.

Public health focus As a third-generation family-owned public health products and services company, Clarke targets mosquito control and vector management, suggesting cross-sell opportunities to expand integrated vector management services and product offerings across municipalities, schools, and private institutions.

Growth and scale Revenue is in the upper mid-range with 250M-500M and a 200+ employee base, indicating capacity for large-scale deployments, service expansion, and enterprise deals with larger public health projects or government contracts.

Tech-enabled ops The tech stack shows usage of modern tools (WordPress, WooCommerce, LiDAR, Python, Android) which enables digital marketing, field operations, and data-driven mosquito management, presenting upsell opportunities for advanced sensor integration, data analytics services, and digital companion products.

Trusted employer Being certified as a Great Place to Work signals strong employee engagement and culture, which can be leveraged to position Clarke as a stable partner for multi-year contracts and to expand capabilities through channel partnerships with aligned firms seeking reliable collaborators.

Similar companies to Clarke

Clarke Tech Stack

Clarke uses 8 technology products and services including Microsoft 365 Copilot, WordPress, Cookiebot, and more. Explore Clarke's tech stack below.

Clarke's Email Address Formats

Clarke uses at least 4 email formats:
Clarke Email FormatsExamplePercentage
FLast@clarke.comJDoe@clarke.com
95%
Last@clarke.comDoe@clarke.com
3%
First_Last@clarke.comJohn_Doe@clarke.com
1%
L.First@clarke.comD.John@clarke.com
1%

Frequently Asked Questions

What is Clarke's phone number?

Minus sign iconPlus sign icon
You can contact Clarke's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Clarke's stock symbol?

Minus sign iconPlus sign icon
Clarke is a publicly traded company; the company's stock symbol is CTO.L.

What is Clarke's official website and social media links?

Minus sign iconPlus sign icon
Clarke's official website is clarke.com and has social profiles on LinkedIn.

How much revenue does Clarke generate?

Minus sign iconPlus sign icon
As of August 2026, Clarke's annual revenue is estimated to be $250M - $500M.

What is Clarke's SIC code and NAICS code?

Minus sign iconPlus sign icon
Clarke's SIC code is 4959 - Sanitary Services, Not Elsewhere Classified and NAICS code is 54162 - Environmental Consulting Services.

How many employees does Clarke have currently?

Minus sign iconPlus sign icon
As of August 2026, Clarke has approximately 307 employees across 5 continents, including North America, Europe and Asia. Key team members include Chief Executive Officer Of Clarke Enterprises: M. C., Vice President General Manager: T. P. and Owner: S. C. Explore Clarke's employee directory with LeadIQ.

What industry does Clarke belong to?

Minus sign iconPlus sign icon
Clarke operates in the Environmental Services industry.

What technology does Clarke use?

Minus sign iconPlus sign icon
Clarke's tech stack includes Microsoft 365 Copilot, WordPress, Cookiebot, WooCommerce, Salesforce Marketing Cloud Account Engagement, Agentforce, Microsoft Azure and Adobe Creative Suite.

What is Clarke's email format?

Minus sign iconPlus sign icon
Clarke's email format typically follows the pattern of FLast@clarke.com. Find more Clarke email formats with LeadIQ.

When was Clarke founded?

Minus sign iconPlus sign icon
Clarke was founded in 1946.
Clarke logo

Clarke

Environmental ServicesIllinois, United States201-500 Employees

Clarke is a mid-sized, third-generation, family-owned company based in St. Charles, Illinois that operates in the environmental services sector. It develops public health products and services with a specialty in vector control, aiming to reduce the public health impact of mosquitoes. The firm has received a Great Place to Work certification, reflecting its workplace recognition. Its offerings center on environmentally responsible solutions for managing disease-carrying and nuisance mosquitoes, leveraging innovations and technical expertise in public health mosquito control. Clarke serves customers seeking to mitigate mosquito-borne disease risk and related nuisances, applying integrated management approaches across communities worldwide. The company positions itself within environmental services as a provider committed to sustainability and public health outcomes.

Section iconCompany Overview

Phone number
Website
clarke.com
SIC Code
4959 - Sanitary Services, Not Elsewhere Classified
Stock Symbol
CTO.L
NAICS Code
54162 - Environmental Consulting Services
Founded
1946
Employees
201-500

Section iconFunding & Financials

  • $250M - $500M

    Clarke's revenue is estimated to be in the range of $250M - $500M

Ready to create more pipeline?

Get a demo and discover why thousands of SDR and Sales teams trust
LeadIQ to help them build pipeline confidently.

© LeadIQ, Inc. All rights reserved.