HARTMAN SPILLER

What HARTMAN SPILLER does

Hartman Spiller is an integrated architecture firm based in Des Moines, Iowa, operating from 1011 Locust St. Suite 307. Founded in 2019 and privately held by its named partners — Brad Hartman (Design Partner), James Spiller (Managing Partner), and Rachel Spiller (Design Partner) — the firm employs 9-11 people and delivers architecture and interior design services across residential, cultural, hospitality, civic, and commercial built environments. The practice is organized as a single integrated service offering rather than a platform-plus-modules structure, with the three partners providing design and management leadership supported by project architects and architectural designers.

The firm's project portfolio demonstrates three differentiated technical specializations: (1) LEED-certified sustainable design, evidenced by a LEED Platinum certified 22,000 square foot civic animal services facility; (2) historic adaptive reuse, exemplified by the 3750 on Grand project that converted a circa 1930 stone church into 37 luxury condominium units on a 3-acre site; and (3) custom mid-century modern reinterpretation for high-end residential clients. Custom millwork, seamless indoor-outdoor spatial design, and specialized commercial kitchen layouts for hospitality clients form recurring technical competencies. The firm operates entirely through project-based professional services engagements, with no software, platform, API, or AI components.

Hartman Spiller generates revenue through project-based architecture and interior design fees on a quote-based pricing model, with no publicly disclosed rates and billing structured as multi-year contracts tied to project timelines. GTM is sales-led through direct client engagement, portfolio presentation, and LEED/credentials-driven outreach. Customer segments include high-net-worth residential clients, hospitality operators, real estate developers, and municipal and civic organizations across at least five Iowa geographies (Des Moines, Clear Lake, West Des Moines, Pella, and Waukee). Notable customers include the City of Des Moines Animal Services, Focus Eyecare, Oak Park restaurant, St. Kilda, South Union Bread Company Cafe, and Secret Admirer bar, with luxury condominium pre-sales at 3750 on Grand reaching median values of $600+ per square foot.

Name

HARTMAN SPILLER

Legal name

Hartman Spiller

Website

https://hartman-spiller.com

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

1–10 employees

Short description

Hartman Spiller is a Des Moines, Iowa-based integrated architecture firm founded in 2019, serving residential, hospitality, civic, and commercial clients across Iowa with expertise in LEED-certified sustainable design, historic adaptive reuse, and luxury custom residential projects via a 9-11 person partner-led practice.

Ownership category

akta.pro rank

Headquarters

HQ city

Des Moines, IA

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Architecture and Design Services: Project-based architecture and interior design fees for residential, commercial, hospitality, and civic projects. Revenue is generated through custom design contracts, typically valued at premium price points (e.g., $600+/square foot for luxury residential).

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Hartman Spiller is an integrated architecture firm providing custom architectural and interior design services for residential, commercial, hospitality, civic, and cultural built environments. The firm delivers end-to-end design services from concept through completion, with specialized expertise in historic adaptive reuse, LEED-certified sustainable design, and luxury residential projects. Notable work includes the LEED Platinum Des Moines Animal Services facility and the 3750 on Grand adaptive reuse condominium development.

Product overview

Hartman Spiller is an integrated architecture firm (operating as 'HST') providing comprehensive architectural and design services. The firm operates as a single unified service offering rather than a platform-plus-modules structure. Their portfolio spans residential architecture (custom homes, remodels, multi-family condominiums like 3750 on Grand), commercial architecture (restaurants, cafes, retail, offices), civic/institutional projects (animal control facilities, performing arts spaces), and specialty services including historic adaptive reuse and interior design. Projects include residential remodels (Minimalist Modern, Mid-Mod Refresh, Waterbury Suite), luxury penthouses (Penthouse North, Penthouse South), commercial hospitality venues (Oak Park restaurant, St. Kilda, South Union Bread Cafe, Temple Cafe), bars (Secret Admirer), healthcare (Focus Eyecare), and civic buildings (Des Moines Animal Control with LEED Platinum certification).

Differentiator

Problem solved

Functional benefit

Products and services

• Integrated Architectural Design Services

Quantifiable outcome

• Raised Des Moines residential prices to $600+/square foot median values
• +2 more outcomes

Named customers8 records

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

Six partnerships are on record, tiered minor.

• Neumann BrothersminorOthersGeneral contractor for the 3750 on Grand Penthouse North project. Neumann Brothers is a local Des Moines construction company providing building services for the luxury penthouse development.
• K Johnson ConstructionminorOthersConstruction contractor for the St. Kilda restaurant expansion project in the historic Temple for Performing Arts building.
• Weitz ConstructionminorOthersGeneral contractor for the LEED Platinum certified Des Moines Animal Control facility, a 22,000 square foot civic building.
• Three Sixty ConstructionminorOthersConstruction contractor for the Focus Eyecare optometry office project in Waukee, Iowa.
• Amanda Reynal InteriorsminorOthersInterior designer collaborating on the Penthouse North project at 3750 on Grand, providing interior design services alongside architectural design.
• Adam Albright PhotographyminorOthersProfessional photographer documenting multiple residential and commercial projects for portfolio and marketing purposes.

Scale indicators5 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Olson Kundig: Seattle-based design-forward architecture practice recognized for high-end residential, hospitality, and adaptive reuse work. Comparable boutique scale with premium design positioning and craft-driven ethos.
• INVISION Architecture: Des Moines-based architecture firm serving residential, commercial, healthcare, and institutional clients. Direct local competitor operating in the same regional market with similar project types.
• BNIM: Kansas City-based architecture and design practice with deep sustainability expertise and a portfolio of LEED-certified civic and cultural projects. Comparable Midwest location and high-performance design positioning.
• Lake|Flato Architects: San Antonio-based architecture firm known for residential, civic, and sustainable design with strong regional identity. Comparable boutique size with similar emphasis on design-driven projects and historic/contextual sensitivity.
• ASK Studio: Des Moines-based architecture and design studio serving residential, hospitality, and commercial clients in the Iowa market. Direct local competitor with comparable boutique scale and design-led approach.
• OPN Architects: Cedar Rapids, Iowa-based integrated architecture firm serving residential, commercial, and civic clients across the Midwest. Closely comparable in scale, regional focus, and project mix to Hartman Spiller.

Broad incumbents

• Gensler: Global architecture and design firm serving commercial, hospitality, and residential developers worldwide. Competes for premium hospitality and mixed-use commissions at significantly larger scale than the subject firm.
• Perkins&Will: Global architecture firm with a strong sustainable design practice and extensive LEED Platinum experience. Overlaps with Hartman Spiller on civic and institutional work but operates at much larger scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/hartman-spiller

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

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 HARTMAN SPILLER