Terada Seisakusho

What Terada Seisakusho does

Terada Seisakusho (株式会社寺田製作所) is a private Japanese industrial machinery manufacturer founded in 1920 and headquartered in Shimada, Shizuoka Prefecture. The company's core business is designing, manufacturing, and selling tea processing machinery for the Japanese tea industry, covering the full production chain from fresh leaf transport, evaluation, washing, and steaming through rough rolling, refined rolling, drying, sorting, and packaging. Its product portfolio explicitly addresses sencha (煎茶), tencha/matcha (碾茶), black tea (紅茶), oolong tea (烏龍茶), and pan-fired tea (釜炒り茶), alongside agricultural field machinery (riding tea picking machines, the award-winning Tea Garden Inter-row Weeding Machine, tea garden cleaners, multi-function tea field management machines), perilla/shiso processing lines, and general food processing equipment (Bisaiki grinding machine, Hojiro small roasting machine). Proprietary technology foundations include the super-heated air machine operating at 200-350°C, an LPG direct-fire hot air generator delivering 27% CO2 reduction and 15%+ energy savings vs. heavy-oil heat exchangers, a near-infrared Shitori moisture control system with graphical touchscreen, and the Tea-Flow System 525 centralized line monitoring platform.

The company operates a sales-led B2B model targeting Japanese tea factories and agricultural cooperatives through a nationwide dealer network, with direct sales of custom and large-scale equipment handled from its Shimada headquarters. Annual Terada Fair exhibitions at headquarters serve as the primary demand-generation event, supplemented by participation in industry exhibitions like FOOMA JAPAN. Software has emerged as a distinct revenue stream via the Tea Field Diary mobile app (iOS/Android, GPS-linked field records) and the Kaikeisan/Kaikeisan Cloud tea factory management and accounting system; the cloud version (launched Oct 2025) reduces initial investment by approximately 40% versus prior versions and stores data on Terada Connect servers. After-sales maintenance, repair, parts supply, and a dedicated LINE support channel round out the revenue model. Pricing is quote-based for capital machinery, with consumer products like the Hojiro retailing at ~¥12,000-13,500 (tax included).

Terada holds joint development partnerships with Japan's National Agriculture and Food Research Organization (NARO) and the Shizuoka Prefecture Agricultural Research Institute, notably for the Tea Garden Inter-row Weeding Machine that won the Agricultural, Forestry, Fisheries and Food Industry Technology Promotion Association Chairman's Award in December 2025. The company remains family-owned (the Terada family retains management control), with Terada Hitoshi serving as Representative Director following the January 2026 leadership transition from former Chairman Terada Junichi. All disclosed operations are domestic (Japan only) with no international geographic footprint; primary markets are tea-producing prefectures including Shizuoka, Kagoshima, and Kyushu.

Name

Terada Seisakusho

Legal name

株式会社寺田製作所

Website

https://web-terada.jp

Company type

Private

Founded year

1920

Operating status

Operating

Headcount range

101–250 employees

Short description

Terada Seisakusho is a Japanese private industrial machinery manufacturer (founded 1920, Shimada, Shizuoka) that designs and sells tea processing machinery, agricultural field equipment, and software for tea factories and cooperatives across Japan, with growing SaaS and food-processing offerings.

Ownership category

akta.pro rank

Product category

Tea Manufacturing Machinery

NAICS

Food Product Machinery Manufacturing (333241), Commercial and Service Industry Machinery Manufacturing (33331)

SIC

Beverages (2080)

akta.pro primary industry

Tea Processing (Withering, Rolling, Fermentation, Drying) (AFAFADAF)

akta.pro secondary industry

Tea Blending & Flavoring (AFAFADAG)

Keywords

• Tea processing machinery
• Tea manufacturing equipment
• Agricultural field machinery
• Food processing machinery
• Smart agriculture systems

Headquarters

HQ city

Shimada

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Tea Manufacturing Machinery Sales: Sale of tea processing equipment including rolling-drying machines, steaming machines, drying machines, and complete production lines for green tea, matcha, black tea, and oolong tea.
2. Software Products (SaaS): Sales of software products including 茶畑日誌 app and 会計さん cloud for tea factory management. Revenue from cloud subscriptions with data stored on Terada Connect servers.
3. Maintenance and After-Sales Service: Ongoing maintenance, repair services, and parts supply for tea manufacturing machinery. Company offers dedicated LINE account for service inquiries.
4. Custom/OEM Equipment Development: Custom machinery development and design services for specific customer requirements, including perilla processing equipment and general food processing machinery.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

Terada Seisakusho designs, manufactures, and sells tea manufacturing machinery, agricultural field equipment, and food processing machinery — covering fresh leaf transport, steaming, rolling, drying, sorting, and packaging lines for green tea, matcha, black tea, and oolong tea. The company also sells software (茶畑日記 mobile app, 会計さんクラウド accounting) for tea factory and field management, and provides custom/OEM machinery, maintenance, and after-sales service to tea factories and agricultural cooperatives across Japan.

Product overview

Terada Seisakusho is a manufacturer of tea processing machinery and agricultural equipment founded over 100 years ago in Shizuoka, Japan. Its product portfolio centers on the tea manufacturing process, encompassing the full production chain from fresh leaf management (transport containers, evaluation devices, flow meters, washing/dewatering equipment) through steaming, rolling (rough rolling, intermediate rolling, refined rolling), drying, sorting, and packaging. Beyond sencha (green tea), the company also manufactures equipment for tencha (shade-grown green tea for matcha), black tea (紅茶), oolong tea (烏龍茶), and pan-fired tea (釜炒茶). Specialized tea machines include the 超熱機 (super-heated air machine) for high-temperature processing, the 精揉機 (refined rolling machine), ティーフロー・システム525 (Tea-Flow System 525) for line monitoring, and the 直火型熱風発生器 (direct-fire hot air generator) for energy-efficient heating. The company also produces agricultural equipment including 乗用型茶葉摘採機 (riding tea picking machines), 茶園うね間除草機 (tea garden weeding machine - awarded 2025), 茶園クリーナー (tea garden cleaner), and 乗用型複合茶園管理機 (multi-function tea field management machines). On the software side, Terada offers 茶畑日誌 (Tea Field Diary mobile app), 会計さん/会計さんクラウド (tea factory accounting systems), and GPS area measurement tools. The company also manufactures general industrial food machinery including drying, grinding/milling (美砕機), washing, and conveying equipment, and is pursuing smart agriculture initiatives combining automation and data utilization.

Differentiator

Problem solved

Functional benefit

Brands

• 茶畑日誌: 茶畑専用の管理アプリ。茶畑で行った作業内容を記録・管理できる
• 会計さん
• 会計さんクラウド
• 美砕機
• ほうじろう
• めいか
• 超熱機
• 茶園クリーナー

Products and services

• 美砕機 (Bisaiki) Compact Grinding/Milling Machine Compact food-grade milling machine using a stone mill principle with metal mortars to grind dry ingredients (tea, food materials). Grind size is adjustable via a handle that changes the gap between upper and lower mortar. Also available as 美砕機mini for fresh matcha production from tencha.
• 小型焙じ機 ほうじろう (Hojiro Small Continuous Roasting Machine) Compact LPG-powered continuous roasting machine for storefront use, enabling easy roasting in small spaces and generating aromatic fragrances that attract customers. Used for roasted tea (hojicha) and similar products.
• めいか (Meika) Small Roasting/Firing Machine Small-scale professional roasting/firing machine for tea sampling, testing, events, storefront demonstrations, aroma development, and tea re-firing. Electric-powered, operates on standard 100V household outlet.
• 茶畑日記 (Chabatakushi Tea Field Diary) Mobile App Mobile application for tea field management. Records and manages work performed in tea fields, links field information to maps for visual management, and allows submission of management records alongside tea leaves as data or printed history. Available on Android and iOS.
• 会計さん / 会計さんクラウド (Kaikeisan Tea Factory Accounting System) Tea factory management and accounting system comprising five subsystems (weighing/settlement, history management, production management, facility management, labor management). Cloud version (会計さんクラウド) stores data on Terada Connect cloud servers and is accessible from anywhere with internet.
• 直火型熱風発生器 (Direct-Fire Hot Air Generator) Next-generation direct-fire hot air generator using clean-energy LPG that replaces heat exchangers in rough rolling machines. Eliminates heat exchange loss; achieves 15%+ energy savings and 27% CO2 reduction versus conventional heavy oil indirect heating.
• 超熱機 (Chounetsuki Super-Heated Air Machine) Machine that exposes fresh tea leaves to high-temperature air (200–350°C) to inactivate oxidizing enzymes and remove moisture simultaneously. Short processing time for direct inactivation or heat treatment of steamed leaves. Can be incorporated into tencha lines for significantly increased processing capacity.
• 乗用型茶葉摘採機 (Riding-Type Tea Leaf Picking Machine) Compact and lightweight (750kg, transportable by truck) riding-type tea picking machine available in multiple models (row widths 1500–1800mm), including under-canopy specification for covered tea fields. Uses the proprietary S.S.B. picking method.
• 茶園クリーナー (Tea Garden Cleaner) Attachment for tea picking machines that uses pressurized air to blow away and collect leaves damaged by anthracnose disease and other debris before harvesting, enabling efficient pre-harvest foreign matter removal.
• 茶園うね間除草機 (Tea Garden Inter-Row Weeding Machine) Attaches to Terada's TW-type riding tea field management machine. Uses spring-like claws to remove weeds from the roots, contributing to significant labor reduction in organic tea cultivation (weeding accounts for ~80% of organic-farming labor).
• 乗用型複合茶園管理機 (Riding Multi-Function Tea Garden Management Machine) Versatile riding machine with interchangeable attachments for conventional pesticide spraying, forced-air spraying, fertilizer spreading, medium pruning, cultivation, and seedling planting. Compact enough to fit in a 750kg truck bed. Diesel model also available.
• 碾茶ライン総合 (Tencha Manufacturing Line) Complete tencha (shade-grown green tea for matcha) manufacturing line including super-heated air machines, tencha furnaces, screw separators, and other specialized equipment. Available in configurations matching different production scales and quality requirements.
• 紅茶製造装置 (Black Tea Manufacturing Equipment Line) Complete black tea manufacturing line including withering machines (hexagonal drum and multi-stage net types), rolling machines, continuous and batch-type fermentation machines, fermentation timing judgment systems, and black tea dryers. Available in both batch and continuous configurations.
• 釜炒り茶製造装置 (Pan-Fried Tea Manufacturing Equipment) Equipment line for manufacturing pan-fired tea (kama-iri cha), including hexagonal drum withering machines, batch and continuous pan-frying machines, leaf frying machines, frying pots, re-drying machines, and water-drying machines.
• トラックコンテナ / 軽トラックコンテナ (Truck Container / Light Truck Container for Tea Leaf Transport) Tea leaf transport containers designed for loading onto trucks (1–2t and mini trucks). Resin net conveyor system minimizes damage to fresh tea leaves during transport. Light truck container features gradual discharge via resin net conveyor.
• 生葉評価装置 (Fresh Leaf Evaluation Device) Non-destructive measurement device that measures three components of fresh tea leaves (total nitrogen, total fiber, moisture) in 60 seconds. Measures directly from the sample box without destroying the leaves.
• 生葉管理装置 (Fresh Leaf Management Device) Automated fresh leaf container system available in four types from super-wide (4.1m) to N-type (1.9m), with 4–10 frame counts. Manages and preserves fresh tea leaves with forced-air ventilation to maintain freshness.
• 生葉流量計 (Fresh Leaf Flow Meter) Accurate weighing device for consistent steaming. Batch-weighs fresh leaves and supplies them continuously to the steamer via a dedicated feeder, stabilizing steaming degree, improving quality, and reducing production costs.
• 蒸機 (Steaming Machine) Tea steaming equipment co-developed with Miyamura Iron Works. Features a double-wall stainless steel steam chamber for excellent insulation, reducing condensation and uneven steaming. Supplied as part of complete tea processing lines.
• 粗揉機 (Sojuki Rough Rolling Machine) Wide rough rolling machine (120K, 200K, 250K capacity). First-stage rolling machine optimized for initial rolling of tea leaves after leaf-beating, accommodating volume changes from moisture loss. Improves color, aroma, and quality by preventing clumping during rolling.
• 精揉機 (Seijuki Refined Rolling Machine) Refined rolling machine with a new weight-suspension system for delicate balance mimicking hand-rolling. Features large weight adjustments that still produce fine twisting with a sharp sword-like needle shape and bright color. Weight stop positions increased from 10 to 20 for finer control.
• 風力選別機 (Wind Selection Machine) Leaf and stem selection machine using specific gravity differences to improve refined rolling quality. Variable inverter control on lifters and fans enables fine settings. Includes leaf collection device for easy and hygienic cleaning.
• ティーフロー・システム525 (Tea-Flow System 525) Line monitoring system with a large 15-inch touchscreen LCD for centralized tea processing monitoring and management. Displays tea processing conditions at a glance with improved operability. Brings tea processing closer to full automation (FA).
• GPSで面積 (GPS Area Measurement) Mobile App Mobile app that uses GPS to specify positions and calculate tea field areas. Useful for pesticide application, fertilizer management, and fresh leaf yield calculations; users walk around tea fields to capture GPS coordinates that calculate the enclosed area.
• 設定計算プログラム (Setting Calculation Program) Mobile App Mobile app for calculating basic tea processing settings. Compatible with both iOS and Android. Allows operators to calculate settings at the control panel on-site or from office computers.
• 乗用型送風式補虫機 (Riding-Type Forced-Air Pest Repellent) Co-developed with NARO Fruit Tree and Tea Research Division. Uses wind force to combat pests in an environmentally friendly manner by applying tiny water-laden forced air to the tea plant surface to physically blow away and capture surface-dwelling pests.
• 生葉洗滌脱水装置 (Fresh Leaf Washing and Dehydration Device) Large-scale washing and dewatering machine with multi-step process: pre-wash shower, thorough soaking, spray/fluidization and bubbling washing, final shower rinse, then dewatering — for thorough fresh leaf cleaning and reliable dewatering.
• LPG排熱循環型熱交換器 (LPG Waste Heat Circulation Heat Exchanger) Circulates combustion gas (steam and CO2) from LPG burning, achieving 15%+ energy savings and 25% greenhouse gas reduction compared to conventional heavy oil heat exchangers. Fast temperature rise shortens warm-up time.
• ジェットエアー洗滌機 (Jet Air Washing Machine) Fresh leaf cleaning device using air instead of water. Turbo fan generates airflow that blows off volcanic ash, sand, dust, broken leaves, and tiny insects from the surface of fresh tea leaves.
• Custom / OEM Equipment Development Service Custom machinery design and development services for specific customer requirements, including perilla (shiso) processing equipment and general food processing machinery. Sold as one-off design/engineering projects.
• Maintenance and After-Sales Service Ongoing maintenance, repair services, and parts supply for Terada-manufactured tea processing machinery. Includes a dedicated LINE official account for service inquiries with image sharing.

Quantifiable outcome

• LPG direct-fire heat generators achieve 27% CO2 reduction compared to oil-fired heat exchangers
• +2 more outcomes

Named customers3 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Three partnerships are on record, tiered minor and core.

• ダイワボウ情報システム株式会社 (Daiwabo Information System Corporation)minorGTM or Marketing Partner · 3 February 2026Daiwabo Information System published Terada's 'Accounting Cloud' (会計さんクラウド) software in their IT information magazine, providing marketing exposure for Terada's tea factory management software product.
• 農研機構 (NARO) - National Agriculture and Food Research OrganizationcoreStrategic or Co-development Partner · 7 August 2024Joint development of tea field weeding machine (茶園うね間除草機) with NARO's Agricultural Machinery Research Center. Development supported by NARO's Agricultural Machinery Technology Cluster project. Field testing conducted with support from the Bio-oriented Technology Research Advancement Institution (生研支援センター) under the Strategic Smart Agriculture Technology Development and Improvement project (JPJ011397).
• 静岡県農林技術研究所 (Shizuoka Prefecture Agricultural Research Institute)coreStrategic or Co-development Partner · 7 August 2024Three-party joint development partnership with NARO for the tea field inter-row weeding machine (茶園うね間除草機). The institute conducted field verification tests in Shizuoka Prefecture tea gardens.

Scale indicators2 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Deere & Company (John Deere): Global agricultural machinery giant with extensive precision agriculture and smart farming initiatives — comparable in agricultural automation but at vastly larger scale and global reach.
• Iseki & Co., Ltd. Established Japanese agricultural machinery maker focused on rice and field crop equipment; serves overlapping Japanese farmer/customer base.
• AGCO Corporation: Global agricultural equipment manufacturer (Massey Ferguson, Fendt, Valtra) with precision farming focus — comparable to Terada in agricultural machinery, though at much larger scale and global presence.
• Bühler Group: Swiss global leader in food processing machinery including grain, rice, and related processing equipment — adjacent in food/tea processing machinery category.
• Hosokawa Micron Corporation: Japanese maker of powder processing, milling, and drying equipment — overlaps with Terada's Bisaiki grinding and dryer machinery lines.
• Kubota Corporation: Japan's leading agricultural machinery manufacturer with broader product lines in tractors and farming equipment; overlaps with Terada in agricultural field equipment serving Japanese farmers.
• Yanmar Holdings: Major Japanese agricultural machinery manufacturer with broad product portfolio spanning tractors, harvesters, and engines; potential broader-market competitor in agricultural automation.
• CNH Industrial: Global agricultural and construction equipment manufacturer (Case IH, New Holland) — broad incumbent in farm machinery with smart-agriculture offerings.

Direct peers

• Miyamura Iron Works: Japanese tea machinery manufacturer with confirmed collaboration with Terada on steaming equipment development. Closest direct comparable in tea-specific processing equipment.

Others

• Matsumoto Kiko Co., Ltd. Japanese tea field management machine maker and confirmed Terada partner; their equipment accepts Terada's weeding machine attachments, indicating partial overlap rather than full competition.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/x_terada
• YouTubeyoutube.com/channel/UCA6prhHwwpLFdpGeHow7xIg
• Facebookfacebook.com/webterada.jp
• Instagraminstagram.com/teradaseisakusho/?locale=ja_JP

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 Terada Seisakusho