Theodoor
Theodoor is a Guangzhou-based, privately held Chinese manufacturer founded in 2002 that produces energy-saving air curtains, air source heat pumps, electric heaters, and fresh air systems for residential, commercial, and industrial customers, exporting to over 100 countries via direct factory sales.
- Company typePrivate
- Founded2002
- HeadquartersGuangzhou, China
- Headcount101–250
- GTM typeB2B and B2C
- OfferingHardware or Manufacturing
What Theodoor does
Theodoor (Guangzhou Theodoor Technology Co., Ltd., 广州西奥多科技有限公司) is a Guangzhou-based, privately held manufacturer founded in 2002 that designs and produces energy-saving HVAC equipment — air curtains, air source heat pump water heaters, electric heaters, and fresh air/ventilation systems — out of a 30,000+ square meter facility in Zhongxin Guangzhou Knowledge City. The company serves three horizontal end-markets (residential, commercial, and industrial) with hardware built around proprietary PTC heating elements, high-efficiency centrifugal fan technology, DC inverter heat pump systems using R32 refrigerant and EVI low-temperature operation (-30°C to 43°C), and patented air-channel designs. It is certified to ISO9001, ISO14001, ISO18000, CCC, CE, CB, ROHS, and UL standards, holds over 80 national invention patents, and operates a designated Guangdong Provincial Engineering R&D Center for High-Efficiency Energy-Saving Air Source Heat Pumps.
Theodoor runs a direct-sales, factory-to-customer model with both B2B and B2C channels. Pricing is quote-based and not publicly disclosed; customers engage via website inquiry, phone, or email, and the company provides free consultation and solution recommendations for project-specific requirements. Products are exported to over 100 countries, with named markets including the USA, Germany, France, Switzerland, and Italy; the only disclosed enterprise customer reference is a China Mobile HVAC installation. Marketing is concentrated on the company website, Weibo social media, video content, and a case-study library spanning home, commercial, and industrial deployments. The company has no public funding rounds, no disclosed institutional investors, no M&A activity, and no public revenue or ARR — ownership appears founder-led and privately held, with shareholder and cap-table information absent from public sources.
Theodoor firmographics
Firmographics- Name
- Theodoor
- Legal name
- Guangzhou Theodoor Technology Co., Ltd. (广州西奥多科技有限公司)
- Website
- https://theodoor.com.cn
- Company type
- Private
- Founded year
- 2002
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Theodoor is a Guangzhou-based, privately held Chinese manufacturer founded in 2002 that produces energy-saving air curtains, air source heat pumps, electric heaters, and fresh air systems for residential, commercial, and industrial customers, exporting to over 100 countries via direct factory sales.
- Ownership category
- akta.pro rank
Theodoor industry classification
Industry- Product category
- HVAC Equipment Manufacturing
- NAICS
- Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341), Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing (333415)
- SIC
- Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585), Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564)
- akta.pro primary industry
- HVAC Equipment (Heating, Cooling & Air Handling) (IMAHAKAB)
- akta.pro secondary industry
- Ventilation, Ducting & Air Distribution Equipment (IMAHAKAG)
Keywords
Where Theodoor is headquartered
LocationHeadquarters
- HQ city
- Guangzhou
- HQ country
- China
- HQ region
- Asia
Offices1 record
Markets served
Theodoor business model
Business model- GTM type
- B2B and B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Hardware Product Sales: Theodoor generates revenue through the sale of physical HVAC equipment including air curtains, air source heat pump water heaters, heaters, and fresh air systems. Products are sold directly to customers with pricing based on specifications and configuration. The company offers customization services for different project requirements.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | Custom quotation-based pricing for all products |
Go-to-market motion1 record
Distribution channels2 records
Marketing channels5 records
Theodoor product offering
Product offeringCore offering
Theodoor manufactures and sells energy-saving HVAC equipment across four core product categories: air curtains (cross-flow, centrifugal, industrial, electric heating, and water heating variants), air source heat pump water heaters, electric heaters (wall-mounted, cabinet, and industrial), and fresh air/ventilation products including heat recovery ventilators. Products are sold directly to residential, commercial, and industrial customers and exported globally.
Product overview
Theodoor is a technology company specializing in energy-saving ventilation and heating equipment. Its product portfolio comprises four core categories: (1) Air Curtains including cross-flow, centrifugal, industrial, electric heating, and water heating models; (2) Heaters including wall-mounted, vertical, cabinet, and industrial units with PTC heating technology; (3) Air Source Heat Pumps for domestic hot water and space heating, including DC inverter and integrated units; and (4) Fresh Air Products including heat recovery ventilators and DC fans. The products serve residential, commercial, and industrial segments across home, office, hotel, factory, and cold storage applications. The company emphasizes PTC heating technology, smart controls, and energy efficiency across its product lines.
Differentiator
Problem solved
Functional benefit
Brands
- Theodoor: The primary brand name under which the company markets its air curtains, warm air conditioners, air source heat pumps, and ventilation products.
Products and services
- Air Curtains (风幕机)
Quantifiable outcome
- DC inverter heat pumps achieve COP values up to 6.7 (A12/W30 test condition)
- +3 more outcomes
Companies that use Theodoor
Customer profileNamed customers1 record
Segments3 records
Ideal customer profiles3 records
Theodoor technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
Theodoor partnerships and signals
Strategic signalScale indicators6 records
Recent moves6 records
Expansion highlights6 records
Theodoor competitors and assessment
Company assessmentBroad incumbents
- Midea Group: Global Chinese HVAC and home-appliance major with extensive residential and commercial heating, cooling, and ventilation offerings. Directly comparable on product breadth (heat pumps, air curtains, fresh-air systems), export footprint, and Guangdong manufacturing heritage.
- Bosch Thermotechnology: Leading European heat-pump and heating-equipment supplier. Comparable on residential and commercial ASHP water heaters and combi heating systems for the same European decarbonization-driven demand that supports Theodoor's exports.
- Panasonic Heating & Cooling: Sources Panasonic compressors used in Theodoor's DC inverter heat pumps and also markets A2W heat pumps and air-handling units globally. Direct overlap on heat-pump water heater and space-heating applications across European and Asian markets.
- Daikin Industries: Global HVAC leader and dominant air-source heat-pump supplier. Comparable on inverter compressor-driven heat pump technology, low-GWP refrigerant transitions, and worldwide service networks that compete for the same commercial heat-pump projects Theodoor targets.
- Carrier Global: US-based global HVAC and refrigeration giant. Comparable on commercial/industrial air curtains, centrifugal fans, rooftop units, and the global project bid pipeline that Theodoor's industrial SKUs target.
- Gree Electric Appliances: China's largest air-conditioning and HVAC manufacturer. Comparable because both Gree and Theodoor serve residential, commercial, and light-industrial HVAC markets from a Guangdong base, with overlapping heat-pump, air-handler, and household appliance product families.
- Mitsubishi Electric: Major Japanese HVAC and refrigeration manufacturer with strong heat-pump and air-handling portfolios. Overlaps with Theodoor on residential/commercial heating, inverter heat pumps, and ventilation equipment sold through global distribution.
Direct peers
- Hisense HVAC: Chinese residential and commercial HVAC manufacturer with global distribution. Comparable on small-to-mid commercial HVAC equipment, inverter-driven product roadmaps, and overseas export channels targeting similar mid-market customers.
- TCL Air-Conditioning: Chinese HVAC and appliance maker with residential and light-commercial AC and heat-pump products. Operates from a similar Chinese OEM base and competes head-to-head with Theodoor in domestic home heat-pump water heater and air-source heater segments.
- Airmaster (Biddle): European specialist manufacturer of industrial and commercial air curtains. The most direct product-level peer to Theodoor's flagship air-curtain line, competing on the same commercial- and industrial-doorway specification projects across Europe.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Theodoor social profiles
Digital presenceTheodoor compliance and trust
Trust signalCompliance8 records
Theodoor financial estimates
Financial estimateRevenue estimate
Valuation estimate
Theodoor leadership team
Management profileNumber of profiles
Profiles1 record
Theodoor funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Theodoor M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Theodoor
What does Theodoor do?
Theodoor manufactures and sells energy-saving HVAC equipment across four core product categories: air curtains (cross-flow, centrifugal, industrial, electric heating, and water heating variants), air source heat pump water heaters, electric heaters (wall-mounted, cabinet, and industrial), and fresh air/ventilation products including heat recovery ventilators. Products are sold directly to residential, commercial, and industrial customers and exported globally.
Is Theodoor a public or private company?
Theodoor is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Theodoor founded?
Theodoor was founded in 2002. It employs 101 to 250 people.
Where is Theodoor based?
Theodoor is headquartered in Guangzhou, China, in the Asia region.
How does Theodoor make money?
One revenue line is on record: hardware Product Sales.
Who are Theodoor's main competitors?
Broad incumbents on record are Midea Group, Bosch Thermotechnology, Panasonic Heating & Cooling, Daikin Industries, Carrier Global, Gree Electric Appliances and Mitsubishi Electric. Direct peers are Hisense HVAC, TCL Air-Conditioning and Airmaster (Biddle).
Does Theodoor have an API?
No public API is recorded for Theodoor.
What industry is Theodoor in?
Theodoor's product category is HVAC Equipment Manufacturing. Its primary akta.pro industry code is IMAHAKAB, HVAC Equipment (Heating, Cooling & Air Handling), with a secondary code of IMAHAKAG, Ventilation, Ducting & Air Distribution Equipment. Its NAICS code is 33341 and its SIC code is 3585.