Foulston Siefkin LLP
Foulston Siefkin LLP is a Wichita, Kansas-based law firm founded in 1919, operating as an independent partnership of 101-250 employees. It serves clients across tax planning, placements, public policy law, and government relations in the regional Kansas market.
- Company typePrivate
- Founded1919
- HeadquartersWichita, United States
- Headcount101–250
- GTM typeB2B
- OfferingServices
What Foulston Siefkin LLP does
Foulston Siefkin LLP is a privately held law firm headquartered in Wichita, Kansas, founded in 1919 and operating for over a century as an independent Limited Liability Partnership. With 101-250 employees, the firm is among the larger long-established legal practices in the Kansas market. Its practice is concentrated in four areas: tax planning, placements, public policy law, and government relations — a mix that blends traditional transactional/advisory work (tax, placements) with regulatory and legislative-facing mandates (public policy, government relations).
The firm's business model follows the standard professional services LLP economics: partners hold equity and ownership, fees are generated on a matter-by-matter engagement basis (no publicly disclosed pricing), and revenue is driven by attorney billable hours and partner-level advisory retainers. The firm serves clients across the Wichita business community, with continued local visibility evidenced by the inclusion of firm member Harvey Sorensen in the Wichita Business Journal's "Most Impactful 40" list in 2026.
The available source material is limited — the firm's primary webpage returned a loading/verification page, and no detailed product, technology stack, client roster, or financial disclosures were extractable. As a result, the firm should be characterized as an established regional professional services franchise with a diversified but niche practice mix, a partnership ownership structure, and no publicly observable technology, AI, or expansion signals in the current dataset.
Foulston Siefkin LLP firmographics
Firmographics- Name
- Foulston Siefkin LLP
- Legal name
- Foulston Siefkin LLP
- Website
- https://foulston.com
- Company type
- Private
- Founded year
- 1919
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Foulston Siefkin LLP is a Wichita, Kansas-based law firm founded in 1919, operating as an independent partnership of 101-250 employees. It serves clients across tax planning, placements, public policy law, and government relations in the regional Kansas market.
- Ownership category
- akta.pro rank
Foulston Siefkin LLP industry classification
Industry- Product category
- Legal Services
- NAICS
- Offices of Lawyers (541110), Offices of Lawyers (54111)
- SIC
- Services-Legal Services (8111)
- akta.pro primary industry
- Family & Private Client (Trusts & Estates) Law (BPAHAAAK)
Keywords
Where Foulston Siefkin LLP is headquartered
LocationHeadquarters
- HQ city
- Wichita
- HQ country
- United States
- HQ region
- North America
Markets served
Foulston Siefkin LLP business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Marketing or Sales, Others
Foulston Siefkin LLP product offering
Product offeringCore offering
Foulston Siefkin LLP is a Kansas-based law firm that provides legal counsel across specialized practice areas including tax planning, legal placements, public policy law, and government relations. The firm serves as outside counsel for business, government, and institutional clients requiring expertise in regulated, policy-driven, or transactionally complex matters.
Differentiator
Problem solved
Functional benefit
Products and services
- Tax Planning Services
- Public Policy Law
- Government Relations Services
- Legal Placements
Companies that use Foulston Siefkin LLP
Customer profileIdeal customer profiles1 record
Foulston Siefkin LLP technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Foulston Siefkin LLP partnerships and signals
Strategic signalRecent moves1 record
Expansion highlights1 record
Foulston Siefkin LLP competitors and assessment
Company assessmentDirect peers
- Brownstein Hyatt Farber Schreck LLP: Mid-size firm with a nationally recognized government relations and public policy practice that mirrors Foulston Siefkin's specialization.
- Spencer Fane LLP: Mid-size business law firm with strong Kansas City presence and similar mix of regulatory, tax, and corporate services.
- Husch Blackwell LLP: Mid-size full-service firm with comparable headcount and overlapping practices in tax, government, and corporate law.
- Kutak Rock LLP: Mid-size national firm with significant public finance, government law, and corporate practices, comparable in scale and practice mix.
- Lathrop GPM LLP: Mid-size Midwest firm with overlapping tax, corporate, and government-related practices; comparable in size and structure.
- Ice Miller LLP: Mid-size Midwest firm with comparable headcount and overlapping tax, public affairs, and corporate practices.
- Stinson LLP: Mid-size full-service business law firm with comparable headcount and a similar mix of corporate, tax, and government-related practices across the Midwest.
- Polsinelli PC: Kansas City-headquartered AmLaw firm with strong Kansas footprint and overlapping practice areas including tax, public policy, and corporate law.
Regional players
- McAfee & Taft AAL LLP: Oklahoma's largest law firm with comparable size and similar full-service business, tax, and government relations practice mix in a neighboring state.
- Triplett Woolf Garretson LLC: Wichita-based peer firm with overlapping business, tax, and litigation practices serving the same local client base.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights5 records
Customer concentration
Foulston Siefkin LLP social profiles
Digital presenceFoulston Siefkin LLP financial estimates
Financial estimateRevenue estimate
Valuation estimate
Foulston Siefkin LLP leadership team
Management profileNumber of profiles
Profiles1 record
Foulston Siefkin LLP funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Foulston Siefkin LLP M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Foulston Siefkin LLP
What does Foulston Siefkin LLP do?
Foulston Siefkin LLP is a Kansas-based law firm that provides legal counsel across specialized practice areas including tax planning, legal placements, public policy law, and government relations. The firm serves as outside counsel for business, government, and institutional clients requiring expertise in regulated, policy-driven, or transactionally complex matters.
Is Foulston Siefkin LLP a public or private company?
Foulston Siefkin LLP is a private company. It is classified as management employee owned and is currently operating.
When was Foulston Siefkin LLP founded?
Foulston Siefkin LLP was founded in 1919. It employs 101 to 250 people.
Where is Foulston Siefkin LLP based?
Foulston Siefkin LLP is headquartered in Wichita, United States, in the North America region.
Who are Foulston Siefkin LLP's main competitors?
Direct peers on record are Brownstein Hyatt Farber Schreck LLP, Spencer Fane LLP, Husch Blackwell LLP, Kutak Rock LLP, Lathrop GPM LLP, Ice Miller LLP, Stinson LLP and Polsinelli PC. Regional players are McAfee & Taft AAL LLP and Triplett Woolf Garretson LLC.
Does Foulston Siefkin LLP have an API?
No public API is recorded for Foulston Siefkin LLP.
What industry is Foulston Siefkin LLP in?
Foulston Siefkin LLP's product category is Legal Services. Its primary akta.pro industry code is BPAHAAAK, Family & Private Client (Trusts & Estates) Law. Its NAICS code is 541110 and its SIC code is 8111.