What is SEF A/S's NAICS code?

SEF A/S's NAICS code is 22 (Utilities).

Insights

Green Energy Growth SEF focuses on green solutions and the digital transition, offering opportunities to upsell energy efficiency services, smart meters, and green product bundles to both corporate and private customers.

Fiber and Grid Expansion With ongoing fiber network expansion and a stable, future-proof electric grid, there is potential to partner on connectivity projects, dark fiber leasing, and fiber-enabled services for local businesses and municipalities.

Domestic Reach Despite being centered in South Funen, SEF operates nationwide and installs fiber, charging stations, and heat pumps across Denmark, suggesting scalable B2B partnerships with retailers, installers, and energy technology providers.

Customer Satisfaction SEF Energi customers are repeatedly among Denmark's most satisfied, signaling strong brand trust and a favorable environment for cross-sell of premium services, maintenance plans, and loyalty programs.

Tech Enablement Adopting ISO 9001 and digital platforms (WordPress, Shopify, Cybot) indicates readiness for digital sales, e-commerce partnerships, and white-label energy product experiences for small to mid-sized enterprises.

SEF A/S Tech Stack

SEF A/S uses 8 technology products and services including Cloudimage, Open Graph, RSS, and more. Explore SEF A/S's tech stack below.

Cloudimage

Content Delivery Network

Open Graph

Content Management System

RSS

Content Management System

Cookiebot

Cookie Compliance

Apple iCloud Mail

imagesLoaded

Javascript Libraries

LiteSpeed

Web Servers

Facebook

Widgets

SEF A/S Email Formats	Example	Percentage
FL@sef.dk	JD@sef.dk	76%
First.L@sef.dk	John.D@sef.dk	18%
LastFi@sef.dk	DoeJo@sef.dk	6%

SEF A/S Email Formats

Example

Percentage

FL@sef.dk

JD@sef.dk

76%

First.L@sef.dk

John.D@sef.dk

18%

LastFi@sef.dk

DoeJo@sef.dk

Frequently Asked Questions

What is SEF A/S's phone number?

You can contact SEF A/S's main corporate office by phone at

+45-62-20-1****

. 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 SEF A/S's official website and social media links?

SEF A/S's official website is sef.dk and has social profiles on LinkedIn.

How much revenue does SEF A/S generate?

As of July 2026, SEF A/S's annual revenue is estimated to be $50M - $100M.

What is SEF A/S's SIC code NAICS code?

SEF A/S's SIC code is 1711 - Plumbing, Heating and Air-Conditioning NAICS code is 22 - Utilities.

How many employees does SEF A/S have currently?

As of July 2026, SEF A/S has approximately 92 employees across 1 continents, including Europe. Key team members include Ceo / Adm. Direktør: C. H. A.Chief Executive Officer: L. F.Coo: K. L.. Explore SEF A/S's employee directory with LeadIQ.

What industry does SEF A/S belong to?

SEF A/S operates in the Utilities industry.

What technology does SEF A/S use?

SEF A/S's tech stack includes CloudimageOpen GraphRSSCookiebotApple iCloud MailimagesLoadedLiteSpeedFacebook.

What is SEF A/S's email format?

SEF A/S's email format typically follows the pattern of FL@sef.dk. Find more SEF A/S email formats with LeadIQ.

When was SEF A/S founded?

SEF A/S was founded in 1906.

SEF A/S

Q: What is SEF A/S's official website and social media links?

SEF A/S's official website is sef.dk. SEF A/S has social profiles on LinkedIn.

Q: How many employees does SEF A/S have currently?

SEF A/S has approximately 92 employees.

Q: What technology does SEF A/S use?

SEF A/S's tech stack includes Really Simple Discovery, Apple iCloud Mail, Swiper, Facebook Pixel, karriere.at.

UtilitiesSouth Denmark, Denmark51-200 Employees

SEF A/S is a utilities company owned by the SEF Foundation. Based in Svendborg in the South Denmark region, it operates from southern Funen while serving customers across Denmark. The organization emphasizes proximity to its customers and aims for agility in turning ideas into action rather than pursuing major-scale expansion. It maintains a stable electricity grid and supports the digital transition by expanding and operating a fiber network in its service area, while also installing fiber connections, charging points, and heat pumps across Denmark.

The company targets both business and private customers, encouraging the adoption of green solutions. Its SEF Energi customers have been noted for high levels of customer satisfaction, reflecting the service orientation.

Insights

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