What TSI does

TSI is a privately held US machinery designer founded in 1992 and headquartered in Lynnwood, Washington, with a regional office in Beijing. It engineers custom production systems for the engineered wood and biomass-to-energy industries, serving manufacturers of oriented strand board (OSB), particle board, and industrial wood pellets. Its core technology is a single-pass rotary drum dryer with proprietary classifying flighting systems for precise moisture control, complemented by Heat Energy Systems, Wet Electrostatic Precipitator (WESP) and Regenerative Thermal Oxidiser (RTO) pollution control, and a US-patented rotary-drum torrefaction process for biomass upgrading. These subsystems are integrated under a single "Dryer Island" turn-key offering, with a separate Finishing Lines product line for post-press panel sizing, grading, and packaging.

TSI does not fabricate in-house; manufacturing is subcontracted to qualified fabricators across North America and overseas, giving the company a capital-light, engineering-led cost structure. The go-to-market is direct enterprise field sales via a small specialized team covering Wood Based Panels Equipment, Wood Bioenergy Equipment, and commercial leadership, with named reference customers including Weyerhaeuser, Grant Forest Products, Masisa (Brazil), Green Circle, German Pellets, Portucel, and Martco Corrigan. Revenue is generated from one-time sale of large custom-engineered capital equipment packages, with installation, startup, and commissioning services bundled into project delivery; pricing is not publicly disclosed and is quote-based. The company has expanded internationally over time, opened a Beijing office in 2017, and is currently building a 120ktpy torrefaction plant in Southeast Asia for a Japanese client (2023).

Name

TSI

Legal name

TSI

Website

https://tsi-inc.net

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

11–50 employees

Short description

TSI is a US machinery designer (founded 1992, Lynnwood WA) that engineers custom Rotary Drum Dryers, Heat Energy, Pollution Control, Torrefaction, and Finishing Lines as integrated "Dryer Islands" for OSB, particle board, and industrial wood pellet manufacturers, with manufacturing subcontracted to external fabricators.

Ownership category

akta.pro rank

Headquarters

HQ city

Lynnwood

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Industrial Equipment Sales: TSI designs and supplies custom machinery for wood processing facilities including dryer islands, drum dryers, heat energy systems, pollution control equipment, torrefaction systems, and finishing lines. Equipment is sold as custom solutions to industrial manufacturers with manufacturing subcontracted to external fabricators. The company provides the full design, systems integration, and coordination of manufacturing.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

TSI designs and manufactures engineered production systems for the engineered wood panel and biomass-to-energy industries. Its product line includes rotary drum dryers, integrated dryer islands, heat energy systems, pollution control equipment, biomass torrefaction systems, and finishing lines, supplied as customized turnkey equipment packages to OSB, particle board, and industrial wood pellet producers.

Product overview

TSI offers a portfolio of industrial machinery for the wood processing industry, organized around integrated systems and core equipment product lines. The flagship 'Dryer Island' is an integrated system combining three core products: Dryers (Single Pass Drum Dryers), Heat Energy Systems (burners and furnaces), and Pollution Control equipment (WESPs and RTOs). TSI also provides standalone Torrefaction technology (patented rotary drum system for biomass upgrading) and Finishing Lines (post-press panel processing equipment). The company serves manufacturers of Oriented Strand Board (OSB), particle board, and wood pellets/industrial wood pellets, with additional applications in renewable energy and construction materials.

Differentiator

Problem solved

Functional benefit

Products and services

• Dryer Islands
• Rotary Drum Dryers
• Heat Energy Systems
• Pollution Control Equipment
• Torrefaction Systems
• Finishing Lines

Quantifiable outcome

• World's largest dryer: 24' diameter x 100' long to Masisa Brazil (2007)
• +3 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles2 records

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Sigma Thermal Inc.coreStrategic or Co-development Partner · 1 January 2011Formed cooperation agreement in 2011 with Sigma Thermal from Marietta, Georgia to offer Heat Energy Systems. Sigma Thermal engineers bring expertise in designing and building large furnaces seen in the industry. They share in manufacturing and installation of furnace systems to ensure seamless performance with TSI dryers.

Scale indicators1 record

Recent moves12 records

Expansion highlights5 records

Direct peers

• Dieffenbacher: German manufacturer of complete production systems for wood-based panels (OSB, particleboard, MDF), including pressing, drying, and finishing lines — a close head-to-head competitor in TSI's core engineered-wood panel customer base.
• ANDRITZ: Global supplier of pulp, paper, and biomass processing equipment, including industrial drying systems and wood-panel machinery that directly overlap with TSI's rotary drum dryers, heat energy systems, and OSB/panel finishing line offerings.
• Siempelkamp: Builder of complete wood-based panel plants and press systems, with overlapping offerings in OSB and particleboard finishing lines, frequently competing for the same industrial customers as TSI.
• Ventilex: Dutch specialist in belt dryers and fluid bed dryers for biomass, fertilizers, and minerals, with comparable product technology for industrial wood pellet and biomass drying applications.
• Stela Laxhuber: German manufacturer of low-temperature belt dryers widely used in agricultural biomass and wood pellet drying, competing directly with TSI's drum dryers in the industrial pellet and torrefaction market.
• Büttner: German specialist in drum dryers and energy technology for wood chips, biomass, and industrial minerals — closely comparable to TSI's single-pass rotary drum dryer portfolio and biomass dryer island offering.

Broad incumbents

• GEA Group: Large industrial equipment manufacturer with significant drying and separation technology portfolios serving food, chemical, and environmental markets — competes with TSI in industrial drying at a broader scale across multiple end markets.
• Valmet: Finnish process technologies provider for pulp, paper, and energy industries with biomass drying and heat treatment capabilities — broader portfolio but overlapping industrial drying footprint relevant to TSI's biomass customers.
• Mitsubishi Heavy Industries Environmental & Chemical Engineering: Diversified industrial conglomerate with environmental systems, drying equipment, and energy solutions that occasionally compete with niche players like TSI in large-scale biomass and environmental compliance projects.

Others

• Sigma Thermal: TSI's Heat Energy Systems cooperation partner since 2011 and furnace designer/manufacturer; comparable in the burner/furnace subsystem space and a strategically critical ecosystem participant rather than a head-to-head drying competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/tsi_dryers

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 TSI