Cost Segregation Services - Tami Simko Independent Representative

What Cost Segregation Services - Tami Simko Independent Representative does

CSSI Services is a U.S. tax advisory firm that delivers engineering-based cost segregation studies alongside complementary tax-incentive services, operating nationwide since 2003. The firm markets itself as America's leading provider of engineering-based tax solutions and reports more than 65,000 cost segregation studies completed since inception, with Tami Simko personally coordinating over 3,000 of those studies since joining CSSI in 2008 as a National Account Executive based in Wisconsin.

The core offering is an engineering-based cost segregation methodology that reclassifies commercial building components from 27.5 or 39-year recovery property into shorter 5, 7, or 15-year recovery periods, accelerating depreciation deductions and increasing cash flow for property owners. Beyond cost segregation, CSSI provides Section 179D energy efficiency certification studies (tax deductions of up to $5.81 per square foot for qualifying lighting, HVAC, and building-envelope improvements) and R&D tax credit analysis across manufacturing, technology, and engineering industries. The platform is supported by three interactive online tax savings calculators (Cost Segregation, R&D Tax Credit, Section 179D) and a free personalized tax analysis service delivered within two business days.

CSSI operates a sales-led B2B go-to-market targeting commercial property owners, businesses with R&D activity, and energy-efficient building projects, with CPAs and tax advisors serving as the primary referral channel. Revenue is generated through professional service fees on a quote-based, non-publicly disclosed pricing model. The firm employs 42 staff, operates across all 50 states via a distributed National Account Executive model, and has never had its methodology result in an IRS audit, per company claims.

Name

Cost Segregation Services - Tami Simko Independent Representative

Legal name

CSSI Services

Website

https://cashflow.costsegregationservices.com

Company type

Private

Founded year

2003

Operating status

Operating

Short description

CSSI Services is a U.S. tax advisory firm that delivers engineering-based cost segregation studies, Section 179D energy efficiency deductions, and R&D tax credit analyses to commercial property owners and businesses nationwide through a CPA referral network.

Ownership category

akta.pro rank

Headquarters

HQ city

Wisconsin

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Marketing or Sales, Operations, Technology or R&D

Revenue model

1. Cost Segregation Studies: Engineering-based cost segregation analysis services that reclassify property components for accelerated depreciation, generating professional service fees from commercial property owners.
2. Section 179D Tax Deduction Studies: Energy efficiency certification studies for commercial buildings that qualify property owners for tax deductions up to $5.81 per square foot.
3. R&D Tax Credit Analysis: Analysis services to identify qualifying research and development activities and claim dollar-for-dollar tax reductions for businesses.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

CSSI delivers engineering-based cost segregation studies that reclassify commercial building components from 27.5- or 39-year depreciation to 5-, 7-, or 15-year property to accelerate depreciation and increase cash flow. Complementary services include Section 179D energy-efficiency tax deduction studies (up to $5.81–$5.94 per square foot) and R&D tax credit analysis for qualifying research and development activities. Services are supported by free online calculators and a no-cost personalized Tax Savings Analysis.

Product overview

CSSI operates as a platform offering engineering-based tax solutions with multiple interconnected services. The core offerings include Cost Segregation Studies (engineering-based analysis accelerating depreciation on commercial properties), Section 179D Tax Deduction services (for energy-efficient commercial buildings), and R&D Tax Credits (for qualifying research activities). These services are supported by a suite of online calculators (Cost Segregation Calculator, R&D Tax Credit Calculator, and Section 179D Calculator) that enable property owners and businesses to estimate potential tax savings. The platform also provides a personalized Tax Savings Analysis service that delivers detailed assessments of potential benefits. Over 65,000 studies have been completed since 2003, with services delivered nationwide through partnerships with CPAs and tax advisors.

Differentiator

Problem solved

Functional benefit

Products and services

• Cost Segregation Study Engineering-based analysis that reclassifies commercial building components from 27.5- or 39-year property to 5-, 7-, or 15-year property to accelerate depreciation, increase cash flow, and reduce federal income tax for commercial real estate owners.
• Section 179D Tax Deduction Study Certified energy-efficiency study for commercial buildings with qualifying lighting, HVAC, and building envelope improvements, enabling owners to claim tax deductions of up to $5.81–$5.94 per square foot.
• R&D Tax Credit Analysis Analysis service that identifies qualifying research and development activities across manufacturing, technology, engineering, and other industries, using both the Regular and Alternative Simplified Credit methods to deliver dollar-for-dollar federal tax reductions and claim up to 3 years of past credits.
• No-Cost Tax Savings Analysis Personalized, no-cost assessment evaluating a property owner's or business's specific circumstances and delivering detailed estimates of potential tax savings across cost segregation, Section 179D, and R&D credit offerings, typically within two business days.

Quantifiable outcome

• Property owners can significantly increase cash flow through larger immediate tax deductions by reclassifying building components from 27.5 or 39-year property to 5, 7, or 15-year property
• +2 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• CPAs and Tax AdvisorscoreChannel Partner/ Reseller/ Distributor · 1 January 2008Tami Simko has represented CSSI since 2008, coordinating over 3,000 cost segregation studies. The company collaborates with CPAs and tax advisors as the primary distribution channel, ensuring timely, compliant, and maximum tax benefits for their clients. Tax professionals serve as trusted referral sources who recommend CSSI engineering-based studies to property owners.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• KBKG: KBKG is one of the largest U.S. specialist firms dedicated to cost segregation studies, Section 179D deductions, and R&D tax credits. It directly competes with CSSI on engineering-based accelerated depreciation and energy-efficiency tax services for commercial property owners nationwide.
• Novogradac & Company LLP: Novogradac operates a national tax credit and cost segregation practice serving real estate investors and developers. It is a directly comparable specialist firm offering cost segregation, 179D, and LIHTC-related tax services through a CPA-channel-driven model similar to CSSI.

Broad incumbents

• BDO USA: BDO USA is a top-10 U.S. accounting and advisory firm with established cost segregation, 179D, and R&D tax credit practices serving commercial real estate clients. As a broad incumbent, BDO bundles these specialty tax services with audit, tax compliance, and consulting engagements, competing with CSSI primarily at the mid-market and enterprise end.
• RSM US LLP: RSM US is a large U.S. middle-market accounting firm that operates dedicated cost segregation, energy-efficiency (179D), and R&D tax credit practices. It competes with CSSI by integrating specialty tax services into broader tax and advisory engagements for middle-market commercial property owners.
• Crowe LLP: Crowe is a national accounting and advisory firm offering cost segregation studies, Section 179D energy-efficiency services, and R&D tax credits to commercial real estate and middle-market clients. Its tax practice directly overlaps with CSSI's core offerings but is delivered within a broader multi-service firm structure.
• Wipfli LLP: Wipfli is a top-20 U.S. accounting and advisory firm with a dedicated specialty tax practice covering cost segregation, 179D, and R&D credits. It serves a similar mid-market and commercial real estate client base and competes with CSSI through both direct delivery and CPA-channel referral arrangements.
• Eide Bailly LLP: Eide Bailly is a regional U.S. accounting firm with established cost segregation and tax credit practices serving commercial property owners. It directly overlaps with CSSI's service portfolio and distribution model but delivers within a broader audit, tax, and advisory engagement framework.
• Plante Moran: Plante Moran is a large U.S. accounting and consulting firm operating specialty tax services including cost segregation and R&D tax credit studies. Its size and full-service model make it a broad incumbent competitor to CSSI, particularly for middle-market and enterprise commercial real estate clients.
• Marcum LLP: Marcum is a top-20 U.S. accounting and advisory firm with a national tax services practice that includes cost segregation studies, Section 179D energy-efficiency work, and R&D tax credit services. It competes with CSSI by offering specialty tax incentives as part of an integrated tax and advisory relationship.
• Baker Tilly US: Baker Tilly is a top-15 U.S. advisory, tax, and accounting firm with a dedicated specialty tax practice covering cost segregation, 179D, and R&D credits. It serves a comparable commercial real estate and middle-market client base and competes with CSSI through both direct service delivery and CPA-channel referrals.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Cost Segregation Services - Tami Simko Independent Representative