Enhetsregisteret så vel som Foretaksregisteret viser organisasjonsnummeret.

Så vel som means as well as. It is close in meaning to og (and), but it can sound a little more formal or stylistic. It often presents the second item as an addition to the first, rather than just joining two equal items in the most neutral way.

So:

• Enhetsregisteret og Foretaksregisteret ... = The Register of Legal Entities and the Register of Business Enterprises ...
• Enhetsregisteret så vel som Foretaksregisteret ... = The Register of Legal Entities, as well as the Register of Business Enterprises ...

Both are possible, but they are not always identical in tone.

Usually, no. In this sentence, så vel som works best as a fixed expression. If you try to translate each word separately, it may feel confusing, because the phrase does not map neatly word-for-word into natural English.

For a learner, it is best to remember så vel som as one unit meaning as well as.

Norwegian forms compounds very freely, much more than English does. What English often writes as several words, Norwegian often writes as one.

So a name like Foretaksregisteret is a compound, not separate words. This is completely normal in Norwegian. English might prefer something like the Business Enterprises Register, but Norwegian packs the idea into one word.

The ending -et is the definite article attached to the noun. In Norwegian, the is often added to the end of the word instead of appearing as a separate word before it.

For example:

• et register = a register
• registeret = the register

In these official names, the definite form is part of the name itself. So Enhetsregisteret and Foretaksregisteret are not just random definite forms; they are the actual names of the registers.

Because Norwegian usually marks definiteness with an ending, not with a separate article the way English does.

So:

• organisasjonsnummeret = the organisation number
• registeret = the register

English says the before the noun. Norwegian very often puts the definite marker on the noun itself.

Again, this is because Norwegian likes compounds. Organisasjonsnummeret is built from:

• organisasjon = organisation
• linking -s-
• nummer = number
• -et = the

So organisasjonsnummeret means the organisation number or the organisation registration number. Writing it as one word is standard Norwegian spelling.

That -s- is a common linking element in Norwegian compounds. It does not always have a separate meaning of its own; it often just helps the compound sound natural.

So:

• organisasjon + nummer becomes organisasjonsnummer

You will see this in many Norwegian compounds. Sometimes the -s- is there, sometimes it is not, depending on the word and established usage.

The definite form is used because the sentence is talking about a specific item: the organisation number that the registers display.

Compare:

• viser organisasjonsnummeret = shows the organisation number
• viser et organisasjonsnummer = shows an organisation number

The second version would sound less specific. In administrative or database-style language, the definite form is very common when referring to a specific field or known piece of information.

The sentence follows normal Norwegian main-clause word order:

Subject + verb + object

• Enhetsregisteret så vel som Foretaksregisteret = subject
• viser = verb
• organisasjonsnummeret = object

So the structure is straightforward. Norwegian main clauses normally place the finite verb in second position, and that is what we see here.

Because modern Norwegian verbs do not change form for singular and plural subjects. The present tense form viser stays the same.

So both of these use viser:

• Enhetsregisteret viser ...
• Enhetsregisteret og Foretaksregisteret viser ...

This is different from English, where a learner may expect some agreement issues. In Norwegian, the verb form is much simpler here.

Usually, no. In a sentence like this, så vel som Foretaksregisteret is closely connected to the subject, so commas are normally not needed.

You might see commas in some contexts if the writer wants a more parenthetical pause, but the plain version without commas is the normal choice here.

They are capitalized because they are official names of specific registers. Norwegian does not capitalize all nouns the way German does, but it does capitalize proper names.

So:

• Foretaksregisteret as the official name of a particular register → capitalized
• registeret as a common noun → not capitalized

Yes. That would be a perfectly natural sentence. Using og would sound simpler and more neutral.

Using så vel som adds a slightly more formal or polished tone, and it can subtly highlight the first item while still including the second. Both versions are grammatically fine.