Stukenholtz Laboratory

What Stukenholtz Laboratory does

Stukenholtz Laboratory is a privately held agricultural consulting and testing laboratory headquartered in Twin Falls, Idaho, founded in 1971. The company provides fee-for-service analytical testing across five primary matrices — soil, plant tissue, fertilizer, water/irrigation, and compost/manure — along with ancillary services such as nematode detection, feed analysis, pest management, and variable-rate sampling for precision agriculture. Its customer base consists primarily of regional agricultural producers in Idaho and Eastern Oregon who submit samples directly through mail, drop-off, or scheduled pickup routes for nutrient and crop-health analysis.

The laboratory operates standardized, accredited analytical methodologies, including NAPT-accredited soil and plant tissue testing, Minnesota Department of Agriculture-certified manure testing, NRCS-accepted reporting formats, USDA CEMA 216 program testing (covering wet aggregate stability, soil organic carbon, soil respiration, labile carbon, bioavailable N, soil texture, and pH), and SOLVITA microbial activity assessment. Reports are delivered to customers via an online results portal. The company markets itself primarily through direct channels — phone, email, and website — with field pickup routes serving as its principal customer-acquisition and retention mechanism within its regional service area.

Commercially, Stukenholtz operates a pure transaction-fee revenue model with transparent, publicly listed per-sample pricing ranging from approximately $32 (basic nitrogen recommendations) to $175 (CEMA 216 suite), with comprehensive soil tests priced between $46 and $70 and complete plant tissue tests at $58–$65. Pricing was last updated in January 2025. The business carries no disclosed debt or institutional investment and has operated as an independent entity for more than five decades, making it a stable, regionally entrenched niche operator rather than a venture-backed scale play.

Name

Stukenholtz Laboratory

Legal name

Stukenholtz Laboratory

Website

https://stukenholtz.com

Company type

Private

Founded year

1975

Operating status

Operating

Headcount range

11–50 employees

Short description

Stukenholtz Laboratory is a Twin Falls, Idaho-based agricultural testing laboratory offering fee-for-service soil, plant tissue, fertilizer, water, and compost/manure analysis to regional farmers across Idaho and Eastern Oregon, leveraging NAPT accreditation and scheduled sample pickup routes.

Ownership category

akta.pro rank

Product category

Agricultural Testing Services

NAICS

Testing Laboratories and Services (54138)

SIC

Services-Testing Laboratories (8734), Agricultural Services (700)

akta.pro primary industry

Soil Testing & Nutrient Analysis Services (AFACAKAA)

akta.pro secondary industries

Manure, Compost & Organic Amendments Testing Services (AFACAKAJ), Agricultural Water Testing Services (Irrigation, Groundwater, Surface Water) (AFACAKAC), Fertilizer & Lime Quality Testing Services (AFACAKAK), Plant Tissue, Soil & Water Sampling Coordination (Agronomy-Focused) (AFACABAH)

Keywords

• Agricultural soil testing
• Plant tissue analysis
• Compost manure analysis
• Irrigation water testing
• Fertilizer testing services

Headquarters

HQ city

Twin Falls

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Laboratory Testing Services: The company generates revenue through fee-for-service laboratory testing across multiple matrices including soil, plant tissue, water, fertilizer, and compost/manure. Testing is priced individually with tiered options ranging from basic to comprehensive analysis packages. Volume-based pricing appears available through their SL (weekly tracking) programs.

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels2 records

Core offering

Stukenholtz Laboratory provides fee-for-service agricultural testing and consulting, accepting farmer-submitted samples of soil, plant tissue, water, fertilizer, compost/manure, nematode, and pest materials at its Twin Falls, Idaho laboratory. The lab runs accredited analytical procedures and returns results in standardized formats that growers and agronomists use to make fertilizer, irrigation, and crop-health decisions, supported by scheduled regional pickup routes and an online results portal.

Differentiator

Problem solved

Functional benefit

Products and services

• Soil Testing NAPT-accredited laboratory analysis of soil samples for pH, salts, sodium, CEC, excess lime, organic matter, ammonium-N, nitrate-N, phosphorus, potassium, calcium, magnesium, sulfur, micronutrients, and lime requirement, priced in tiered packages (e.g., Complete $70, N-P-K Plus $51, basic N-P-K $46) for farmers and growers making fertilizer and nutrient-management decisions.
• Plant Tissue Testing Nutrient analysis of plant tissue samples for in-season crop health monitoring, with crop-specific packages for potatoes/sugar beets ($58 for Complete, $44 for N-P-K) and small grains, corn, beans, peas, alfalfa, and onions ($65 for Complete Plus Total N), reporting nitrate, phosphorus, potassium, calcium, magnesium, sulfur, and micronutrient levels.
• Compost / Manure Testing Complete nutrient analysis of compost and manure samples, including the Minnesota Department of Agriculture certified manure testing program (2026), with packages for Complete Analysis ($128) covering total N, nitrate-N, total C, C:N ratio, P, K, pH, salts, sodium, calcium, zinc, iron, manganese, magnesium, and boron, and an N-P-K tier ($102) for primary macronutrient reporting, plus SOLVITA microbial maturity testing.
• Irrigation Water Analysis Laboratory testing of irrigation and farm water sources, including Complete Irrigation Water Evaluation ($76) and a Water Hardness Test ($34) reporting pH, hardness, calcium, magnesium, sodium, potassium, and iron, used by growers to assess suitability of water for crop irrigation.
• Fertilizer Analysis Analytical testing of fertilizer products for guaranteed nutrient analysis, with a Complete Fertilizer Analysis ($128) covering total N, P2O5, K2O, zinc, sulfur, Fe, Mn, Cu, B, Na, Ca, Mg, and a Total N, P2O5, K2O tier ($81), supporting fertilizer blenders, dealers, and growers verifying product content.
• CEMA 216 Soil Health Testing Specialized soil health testing package priced at $175 for participation in the USDA CEMA 216 program, measuring Wet Aggregate Stability, Soil Organic Carbon, Soil Respiration, Labile Carbon, Bioavailable N, Soil Texture, and Soil pH, and producing reports in the NRCS-accepted reporting format (Tests 1E-7E, EP, EN, ENP).
• Nematode Testing Laboratory detection of nematodes in soil or plant samples for crop protection, helping growers identify pest pressure before planting and inform rotation or fumigation decisions.
• Feed Analysis Laboratory analysis of livestock feed samples for nutritional content, used by livestock producers to formulate rations and verify feed quality.
• Pest Management Consulting Agricultural pest identification and management consulting delivered alongside the laboratory's nematode and soil services, supporting growers in diagnosing and responding to pest issues.
• Variable Rate Sampling and Testing Grid-based or zone-based variable rate soil sampling and testing services for precision agriculture applications, generating the input data layers growers and custom applicators use to drive variable-rate fertilizer and soil amendment application.

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators2 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Waypoint Analytical: Waypoint operates multiple regional agricultural testing labs across the US offering soil, plant tissue, water, and manure analysis. Comparable in service offering and customer base, with broader geographic footprint than Stukenholtz.
• AgSource Laboratories (Ellison Miles Geoponica): AgSource is a US-based agricultural testing laboratory offering soil, plant tissue, water, manure, and feed analysis to growers across the Midwest. Directly comparable to Stukenholtz in service menu, sample pricing model, and farmer customer base.
• A&L Soil Laboratories: A&L provides soil testing, plant tissue analysis, and agronomic recommendations to farmers and agribusiness in the US and Canada. Closest peer in terms of menu breadth, NAPT-aligned procedures, and grower-direct fee-for-service pricing.
• Waters Agricultural Laboratories: Waters is a Georgia-based independent agricultural lab providing soil, plant tissue, irrigation water, and nematode testing. Directly comparable in menu, NAPT-aligned methods, and small/regional lab positioning.
• Brookside Laboratories: Brookside is an Ohio-based agricultural testing lab offering soil, plant tissue, and water analysis with agronomy-focused recommendations. Comparable in fee-for-service model, NAPT accreditation, and small-to-mid-sized independent lab profile.
• Control Laboratories: Control Laboratories is a California-based agricultural testing lab serving growers in the Western US with soil, water, plant tissue, and nematode analysis. Comparable in menu and Western-US grower customer base, with deeper California channel penetration.
• Midwest Laboratories: Midwest Laboratories is a Nebraska-based independent lab providing soil, plant tissue, water, manure, and feed testing. Comparable in independent, family-style ownership profile and comprehensive ag testing menu.

Broad incumbents

• Eurofins Agroscience Services: Eurofins is a global testing services conglomerate with a substantial agricultural testing practice spanning soil, water, plant tissue, pesticide residue, and contract research. Comparable as a regulatory-grade testing provider but operates at vastly larger scale and serves agrochemical R&D in addition to growers.
• SGS Agri-Food: SGS is a global inspection, verification, testing and certification company with a sizable agricultural testing footprint including soil, water, and seed. Comparable in NAPT-aligned soil testing and regulatory compliance work but at global scale and across food/feed/seed verticals.

Regional players

• AgriGold Lab Services: AgriGold and similar regional seed/agronomy providers offer in-house soil and tissue testing tied to their seed sales programs. Comparable as grower-facing ag testing, but bundled with seed/inputs rather than sold standalone; represents both a competitor and a potential channel partner.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/StukenholtzLaboratory
• LinkedInlinkedin.com/company/stukenholtz-laboratory-inc

Revenue estimate

Valuation estimate

Number of profiles

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 Stukenholtz Laboratory