DIPLOMA AS

DIPLOMA AS is registered as a limited company in Lørenskog, Akershus with organisation number 928366561. The business is classified under activities of specialist physicians, other than psychiatrists (NACE 86.221). The company was incorporated in 1980 and has 10 registered employees. Registered share capital is NOK 100,000, divided into 60 shares. The company's stated purpose is: “Utleie og tjenesteytelser innen helsesektoren samt handel, produksjon og deltagelse i andre selskap- er.”. The most recent filed accounts, for the 2025 financial year, show NOK 11.8m in revenue and NOK 553,000 in operating profit.

Former names: STRØMMEN HØRESENTER AS

Key figures · 2025

Revenue

NOK 11.8m

▲ +17 %

Operating profit

NOK 553,000

▲ +203 %

Equity

NOK 589,000

▲ +32 %

Est. value

NOK 2.4m

Financial health · 2025

Liquidity

1.12

Satisfactory

Current assets ÷ current liabilities

Profitability

–

Not available

Return on total assets

Solidity

20.5%

Good

Equity as a share of total capital

Who owns DIPLOMA AS?

STIAN HALSE AS Org. no. 829631652

33.3%

GISLE HEIBERG RINGEN AS Org. no. 918929894

33.3%

GEIR SIEM AS Org. no. 913015134

33.3%

DIPLOMA AS

NOK 11.8m rev. · NOK 553,000 profit

DIPLOMA AS has 3 registered shareholders:

• STIAN HALSE AS 33.3%
• GISLE HEIBERG RINGEN AS 33.3%
• GEIR SIEM AS 33.3%

All shareholders and roles →

Frequently asked questions about DIPLOMA AS

Who owns DIPLOMA AS?

STIAN HALSE AS is the largest registered owner, with 33.3%.

What is the revenue of DIPLOMA AS?

DIPLOMA AS had revenue of NOK 11.8m in 2025.

Where is DIPLOMA AS based?

DIPLOMA AS has its business address in Lørenskog.

Source: Biztrac.no · Data from the Brønnøysund Register Centre and the Norwegian Tax Administration · Last updated 03.10.2026.