If you searched for Timothy A. Clausen, Timothy Clausen, Tim Clausen, T. Clausen, and T Clausen, this page is the Rate Iowa Lawyers profile for the business formation and planning attorney Timothy A. Clausen in Sioux City, Woodbury County, Iowa. Compare contact details, credentials, reviews, and public records in one place.
Also known as: Timothy Clausen, Tim Clausen, T. Clausen, and T Clausen
Public record snapshot
Active Iowa license · No public discipline flags in reviewed sources · Timothy A. Clausen appears on the Iowa OPR roster with license status Active. Published practice focus includes Business Formation And Planning.
From Iowa licensing and public court records — not a quality endorsement or referral.
Phone: (712) 252-1866
Address: 4280 SERGEANT ROAD, SUITE 290
Location: Sioux City, Iowa · Woodbury County
State: IA
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Yes. This profile for Timothy A. Clausen may also appear when you search for Timothy Clausen, Tim Clausen, T. Clausen, and T Clausen. Those names refer to the same Iowa attorney listing on RateIowaLawyers.com.
Timothy A. Clausen's listed office is 4280 SERGEANT ROAD, SUITE 290 in Sioux City, Woodbury County, Iowa. Phone and email appear at the top of this profile when available.
RateIowaLawyers.com lists Timothy A. Clausen as an attorney focused on Business Formation And Planning, Employment Law, Family Law, Insurance, Litigation, Mediation, Personal Injury, and Workers’ Compensation in Iowa based on public directory and licensing data.
Timothy A. Clausen is listed with an active Iowa law license on RateIowaLawyers.com. Iowa OPR verification on this profile was last recorded Jun 17, 2026. See Practice & credentials for source links.
RateIowaLawyers.com estimates about 36 years of practice for Timothy A. Clausen admitted to the Iowa bar in 1990, based on Iowa licensing and roster data.
Timothy A. Clausen is associated with Klass Law Firm, L.L.P. according to Iowa directory listings on RateIowaLawyers.com. The firm website (klasslaw.com) is linked on this profile.
RateIowaLawyers.com lists phone (712) 252-1866 for Timothy A. Clausen from public directory sources. You can also send a private message from this profile. Visit klasslaw.com for the firm's website. For urgent matters, contact the office directly.
RateIowaLawyers.com has not linked written reviews for Timothy A. Clausen yet. Check the reviews section on this profile as new community or imported reviews are added.
No. RateIowaLawyers.com is an independent Iowa lawyer directory that aggregates public licensing, contact, review, and ethics signals to help consumers compare attorneys. It is not affiliated with the Iowa State Bar Association or Iowa Office of Professional Regulation.
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Iowa license: Active · verified Jun 17, 2026 via Iowa OPR
License labels come from the Iowa OPR roster.
Cases this attorney handled as counsel for clients — verified counsel roles from public court records.
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Public court records where this person was named as a party or defendant — not cases they handled for clients.
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No disciplinary flags in reviewed public sources · last reviewed Jun 17, 2026
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Profile last updated Sep 20, 2026.
License status: Active
Iowa Office of Professional Regulation · verified Jun 17, 2026
Contact & listing: name, phone, address, city, county
Iowa Office of Professional Regulation · verified Jun 17, 2026
Practice area: Litigation
Firm website · verified Sep 20, 2026
Practice area: Personal Injury
Firm website · verified Sep 20, 2026
Practice area: Family Law
Firm website · verified Sep 20, 2026
Practice area: Mediation
Firm website · verified Sep 20, 2026
Practice area: Insurance
Firm website · verified Sep 20, 2026
Practice area: Workers’ Compensation
Firm website · verified Sep 20, 2026
Practice area: Employment Law
Firm website · verified Sep 20, 2026
Practice area: Business Formation And Planning
Firm website · verified Sep 20, 2026
Tim Clausen — Klass Law Firm, L.L.P.
klasslaw.com · Klasslaw
About this attorney (AI blurb)
Source: AI summary (derived from public profile data) · verified Aug 11, 2026
Derived from public profile fields; not legal advice.
Score explained (AI)
Source: AI summary (derived from public profile data) · verified Aug 11, 2026
Derived from ratings, reviews, and profile signals.
Klass Law Firm→Klass Law Firm, L.L.P.
Source: Klass Law Firm, L.L.P. · Firm website roster sync
Klass Law Firm, L.L.P.→Klass Law Firm
Source: Klass Law Firm · Firm website roster sync
—→klasslaw.com
Source: Klass Law Firm · Firm website roster sync
—→Klass Law Firm, L.L.P.
Source: Iowa Office of Professional Regulation · OPR lawyer detail unified backfill
—→4280 SERGEANT ROAD, SUITE 290
Source: Iowa Office of Professional Regulation · OPR lawyer detail unified backfill
—→51106
Source: Iowa Office of Professional Regulation · OPR lawyer detail unified backfill
Iowa OPR record: View on OPR · Site methodology · Term glossary
Private inquiry to this attorney only. Listed phone and email appear above under contact information.