concern4

Staffing and Recruiting • Rozendaal, Gelderland, Netherlands • 1-10 Employees

Company overview

Headquarters	Rozendaal, Gelderland, Netherlands
Phone number	+31639720011
Website	concern4.nl
NAICS	5613
SIC	736
Keywords	Duurzaamheid, Energie, Circulair, Duurzame Vacatures
Founded	2010
Employees	1-10
Socials

Key Contact at concern4

Martijn Zomerplaag

Owner

concern4 Email Formats

concern4 uses 1 email format. The most common is {first initial} (e.g., j@concern4.nl), used 100% of the time.

Format	Example	Percentage
{first initial}	j@concern4.nl	100%

About concern4

Concern4 is gespecialiseerd in het bemiddelen voor vacatures in de duurzame energie. Vaste en tijdelijke functies in de bouw, energie, installatietechniek en afval.

concern4 revenue & valuation

Annual revenue	$85,555
Revenue per employee	$86,000
Estimated valuation?This valuation is estimated based on industry average for the Staffing and Recruiting industry and current estimated revenues	$273,776
Total funding	No funding

Employees by Management Level

Total employees: 1-10

Seniority

Employees

Founder/Owner

Funding Data

concern4 has never raised funding before.

concern4 Tech Stack

Discover the technologies and tools that power concern4's digital infrastructure, from frameworks to analytics platforms.

WhatsApp Business Chat

Live chat

reCAPTCHA

Security

jQuery

JavaScript libraries

Mustache

JavaScript frameworks

Nginx

Reverse proxies

PHP

Programming languages

Open Graph

Miscellaneous

PWA

Miscellaneous

YouTube

Video players

Frequently asked questions

concern4 is located in Rozendaal, Gelderland, NL.

You can reach concern4 at +31639720011.

concern4 was founded in 2010, making it 16 years old. The company has established itself as a significant player in its industry over this time.

concern4 has approximately 1-10 employees. The company continues to grow its workforce to support its business operations and expansion.

Key Contact at concern4

Martijn Zomerplaag

Owner

4.8

40,000 users