What Kiefer Sage does

Kiefer Sage, Inc. (formerly Assembled Products Corporation) is a privately held, family-owned US manufacturer founded in 1983 and headquartered in Rogers, Arkansas, operating four purpose-driven product brands from a single consolidated campus with 150 employees. The company's core business is the design, manufacture, and sale of specialized hardware: Martcart™ electric shopping carts serving mobility-impaired retail shoppers at chains including Walmart, Home Depot, BJ's Wholesale Club, and Trader Joe's; Spraymaster™ plumbed-in commercial pressure washing systems used by grocers, restaurants, and facilities including Chick-fil-A, San Diego Zoo, and NASA; Tenhold™ vehicle consoles, laptop mounts, cargo storage, and weapon retention systems serving law enforcement agencies across 25+ US states with Ford, Chevrolet, and Dodge vehicle compatibility; and Assembled Products™ co-assembly and contract manufacturing services targeting companies reshoring to US-based production. The go-to-market combines direct enterprise sales to major retail and government accounts with direct-to-consumer e-commerce through dedicated brand websites, with products sold on quote-based pricing for B2B and e-commerce checkout for individual buyers.

Technology differentiation centers on category-defining first-to-market products, including the world's first electric shopping cart (a 1983 invention), the first central pressure washing system, and the connected Martcart Zeos™ mobility cart with cellular IoT telemetry enabling fleet intelligence and predictive maintenance. Tenhold's Suppressor Lock Head weapon mounting system represents safety-engineered hardware differentiation. The business model is fundamentally B2B hardware sales augmented by the Co-Assembly services vertical, with a US manufacturing footprint that supports premium pricing under reshoring demand. Operating leverage is documented by a 678% net profit increase and 250% EBITDA growth during 2017-2024, and a 42% reduction in utility expenses following the September 2025 consolidation to a single campus. Justin Sparks, a former Tyson Foods VP/General Manager of a $2B+ business, became CEO in September 2024 with founder's daughter Erin Kiefer transitioning to Chairman.

Name

Kiefer Sage

Legal name

Kiefer Sage, Inc.

Website

https://kiefersage.com

Company type

Private

Founded year

1983

Operating status

Operating

Headcount range

101–250 employees

Short description

Kiefer Sage is a family-owned US manufacturer founded in 1983 in Rogers, Arkansas, operating four purpose-driven hardware brands: Martcart electric mobility carts for retail shoppers, Spraymaster commercial pressure washing systems, Tenhold vehicle mounting solutions for first responders, and Assembled Products co-assembly services.

Ownership category

akta.pro rank

Headquarters

HQ city

Rogers

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Mobility Cart Sales: Sale of Martcart electric shopping carts and mobility solutions to retailers and consumers. Products provide independence for shoppers with limited mobility.
2. Commercial Cleaning Equipment Sales: Sale of Spraymaster pressure washing systems to commercial facilities including grocery stores, restaurants, and animal shelters.
3. Vehicle Mounting Solutions: Sale of Tenhold vehicle console systems, laptop mounts, cargo storage, and weapon retention solutions for first responders and law enforcement vehicles.
4. Co-Assembly Services: Manufacturing and assembly partnership services under Assembled Products brand, helping companies design, assemble, ship, and scale their innovations with confidence.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels4 records

Core offering

Kiefer Sage is a U.S.-based holding company that designs and manufactures purpose-built products for overlooked markets. Its portfolio includes Martcart electric shopping carts for mobility-impaired retail shoppers, Spraymaster plumbed-in commercial pressure washing systems, Tenhold vehicle consoles and weapon mounting systems for first responders, and Assembled Products co-assembly manufacturing services for partner companies.

Product overview

Kiefer Sage is a holding company that operates an ecosystem of purpose-driven brands serving overlooked and undervalued markets. The company offers four distinct product lines: Martcart™ (electric mobility carts for shoppers with limited mobility), Spraymaster™ (commercial pressure washing systems), Tenhold™ (vehicle mounting solutions for first responders), and Assembled Products co-assembly services (manufacturing partnership). Founded in 1983 in Rogers, Arkansas, the company grew from the invention of the world's first electric shopping cart and has expanded to serve retail, commercial cleaning, and law enforcement markets. Recent innovation includes Martcart Zeos™, a connected mobility cart with cellular connectivity for fleet management.

Differentiator

Problem solved

Functional benefit

Brands

• Martcart™: Premier electric shopping carts for retail and commercial use, providing mobility solutions for limited mobility shoppers.
• Spraymaster™
• Tenhold™
• Assembled Products™

Products and services

• Martcart Electric shopping carts and mobility solutions for shoppers with limited mobility, providing premier electric shopping carts for retail and commercial use that help retailers attract loyal shoppers and support independence.
• Spraymaster Electric-powered, plumbed-in commercial pressure washer systems for high-traffic facilities, delivering instant, powerful cleaning on demand for rigorous daily operational needs.
• Tenhold Vehicle mounting solutions for first responders including consoles, laptop mounts, cargo storage, and weapon retention systems, engineered for durability, easy installation, and seamless integration with Ford, Chevrolet, and Dodge vehicles.
• Assembled Products Co-Assembly Services Co-assembly and manufacturing partnership services offering design, assembly, shipping, and scalable production capabilities for companies looking to build and scale their innovations with U.S.-based manufacturing.

Quantifiable outcome

• 678% increase in net profit during 2017-2024 under CEO Erin Kiefer
• +4 more outcomes

Named customers9 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

Feature4 records

Partnerships

One partnership is on record.

• UAMS GoBabyGominorStrategic or Co-development PartnerKiefer Sage participates in the UAMS GoBabyGo program, designing and adapting custom ride-on cars for children with limited mobility. The company's leadership cohort collaborated on this initiative as part of employee development and community impact efforts.

Scale indicators8 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• Havis: Havis is the most direct competitor to Tenhold, designing vehicle consoles, mounts, docking stations, and equipment for public safety, government, and commercial fleets. The product overlap in law enforcement vehicle outfitting makes it the closest head-to-head peer.
• Setina Manufacturing: Setina is a direct competitor to Tenhold, producing weapon racks, partitions, and vehicle equipment for police and sheriff departments across the US. Its product line overlaps directly with Tenhold's weapon retention and law enforcement vehicle outfitting portfolio.
• Carts and Parts: Carts and Parts sells shopping carts, mobility carts, and replacement parts to grocery and retail customers. Its product line overlaps with Martcart's traditional and electric shopping cart offerings, making it a direct retail-mobility peer.
• Hotsy (Tingle Group): Hotsy manufactures commercial hot- and cold-water pressure washers sold to industrial, food-service, and facility customers that overlap with Spraymaster's target buyers. Direct overlap in commercial pressure washing equipment makes it a focused peer.

Broad incumbents

• Jabil: Jabil is a global contract manufacturer offering design, assembly, and supply-chain services. It is a broad incumbent peer for Kiefer Sage's new Assembled Products co-assembly service, though at substantially greater scale and geographic reach.
• Karcher: Karcher is a global leader in commercial and industrial cleaning equipment, including commercial pressure washers sold into facilities similar to Spraymaster's customer base. It is a broad incumbent rather than a niche specialist in plumbed-in central washing systems.
• Flex (Flextronics): Flex is a global contract manufacturer providing design, manufacturing, and aftermarket services across multiple industries. It is a broad incumbent peer for Assembled Products' co-assembly offering, competing for US reshoring-driven manufacturing partnerships.
• Pride Mobility: Pride Mobility is a large manufacturer of personal mobility devices, including power chairs and scooters sold through medical and retail channels. While not a direct retail-shopping-cart peer, it addresses overlapping end-user demand from mobility-impaired consumers served by Martcart.

Emerging players

• Golden Technologies: Golden Technologies manufactures lift chairs, scooters, and power wheelchairs for mobility-impaired consumers, often sold through retail and home-medical channels. It is an adjacent mobility peer with overlapping end-user demographics but a different product set.

Others

• Whelen Engineering: Whelen Engineering manufactures emergency warning lights, sirens, and public-safety vehicle electronics sold to law enforcement and first responders. It is an adjacent public-safety equipment peer serving many of the same agencies as Tenhold, but with a different product focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/KieferSage

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries4 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 Kiefer Sage