Proportion-Air
Proportion-Air is a privately held Indiana-based manufacturer of proportional electro-pneumatic pressure regulators, mass flow controllers, and pneumatic safety regulators, serving OEMs and end users across 21 industrial verticals including aerospace, semiconductor, medical, and tire manufacturing.
- Company typePrivate
- Founded1986
- HeadquartersMccordsville, United States
- Headcount51–100
- GTM typeB2B
- OfferingHardware or Manufacturing
Proportion-Air firmographics
Firmographics- Name
- Proportion-Air
- Legal name
- Proportion-Air, Inc.
- Website
- https://proportionair.com
- Company type
- Private
- Founded year
- 1986
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- Proportion-Air is a privately held Indiana-based manufacturer of proportional electro-pneumatic pressure regulators, mass flow controllers, and pneumatic safety regulators, serving OEMs and end users across 21 industrial verticals including aerospace, semiconductor, medical, and tire manufacturing.
- Ownership category
- akta.pro rank
Proportion-Air industry classification
Industry- Product category
- Pneumatic Pressure and Flow Control
- NAICS
- Fluid Power Valve and Hose Fitting Manufacturing (332912), Fluid Power Cylinder and Actuator Manufacturing (333995), Electrical Apparatus and Equipment, Wiring Supplies, and Related Equipment Merchant Wholesalers (42361)
- SIC
- Wholesale-Industrial Machinery & Equipment (5084), Wholesale-Electronic Parts & Equipment, Nec (5065)
- akta.pro primary industry
- Pneumatic Air Preparation & Distribution (FRL assemblies, manifolds, air headers) (IMAHAGAD)
Keywords
Where Proportion-Air is headquartered
LocationHeadquarters
- HQ city
- Mccordsville
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Proportion-Air business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales, Infrastructure
Revenue model
- Hardware Product Sales: Sale of electronic pressure regulators, mechanical pressure regulators, mass flow controllers, pressure transducers, and safety regulators through direct online store and distributor network
- Custom Product Orders: Customized and built-to-specification products with typical lead times of four weeks or less, with expedited options available for urgent requirements
- Aftermarket Parts & Accessories: Replacement parts, repair kits, mounting brackets, power cables, filters, and other accessories for existing product installations
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Electronic Pressure Controllers - QB Series |
| Unit Pricing | Pay-as-you-go | High Pressure Valves |
| Unit Pricing | Pay-as-you-go | Flow Control Products |
| Unit Pricing | Pay-as-you-go | Pressure Transducers |
| Unit Pricing | Pay-as-you-go | Mechanical Regulators |
| Unit Pricing | Pay-as-you-go | Safety Regulators (Protect-Air) |
| Unit Pricing | Pay-as-you-go | Accessories & Supplies |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels6 records
Proportion-Air product offering
Product offeringCore offering
Proportion-Air manufactures and sells proportional electro-pneumatic pressure and flow control devices, including electronic pressure regulators, mass flow controllers, mechanical pressure regulators, pneumatic safety regulators, industrial process valves, and pressure transducers. The company sells standard catalog products via an online store and authorized distributors, while custom-built-to-specification products are handled through direct sales with an applications engineering team, typically shipping within four weeks.
Product overview
Proportion-Air is a manufacturer of proportional electro-pneumatic pressure and flow control devices. The product portfolio includes three core product families: Proportion-Air (electronic pressure regulators and mass flow controllers), Burling Valve (industrial process regulators with large CVs), and Protect-Air USA (miniature safety regulators). Core electronic products include the QB series (QB3, QB4, QB3H, QBS, QB2X, QBX), QPV/MPV high resolution regulators with ±0.005% full scale precision, and F-series mass flow controllers with <10ms response time. Mechanical regulators include BVR general purpose regulators, dome-loaded PSR/RM series, and back pressure regulators. Safety products under Protect-Air include OxyReg, CartReg, SaveAir, ToolReg, and HoseGuard. Recent additions include Laboratory Equipment (Proportion-Air Supply) and turnkey Electro-Pneumatic Systems. Products range from vacuum to 6,000+ PSI with customization capabilities.
Differentiator
Problem solved
Functional benefit
Brands
- Burling Valve: Industrial process control valves with large CVs, easy in-line maintenance and fast delivery.
- Protect-Air USA
Products and services
- Electronic Pressure Regulators Proportional electro-pneumatic pressure regulators offering precise control from vacuum to 5,000+ PSI with high accuracy and repeatability, including High Pressure, Low Pressure, High Flow, and High Resolution variants. Used by industrial OEM and process engineers across aerospace, semiconductor, medical, and manufacturing applications.
- Mechanical Pressure Regulators Mechanical pressure regulators (PSR Series, RM/RMV Series, BVR Series) for controlling application pressure downstream or upstream, available in spring-loaded, dome-loaded, and pilot-operated configurations. Used in industrial process control and as pilots for electronic regulators.
- Protect-Air Pneumatic Safety Regulators Preset, tamper-proof miniature safety regulators (OxyReg, CartReg, SaveAir, ToolReg, HoseGuard) for protecting tools, compressed air systems, and personnel, compliant with ISO and OSHA directives. Used in industrial and medical oxygen and compressed air tool applications.
- Mass Flow Controllers Closed-loop electronic mass flow controllers (F-Series transducer, FQB2, FQB3, FQPV2, FCV) with less than 10 ms response time, controlling flow rates from 2 SCFH to 250 SCFM across air, argon, CO2, helium, nitrous oxide, nitrogen, and oxygen. Used in semiconductor, pharmaceutical, and process control applications.
- Burling Valve Industrial Process Regulators Industrial process control valves featuring large CVs, easy in-line maintenance, and fast delivery, ranging from 1/2" to 4" bodies and 6" or 8" flange mount. Used in industrial process control applications.
- Pressure Transducers Pressure transducers (DSB Industrial, DST High Pressure, DSW NEMA4) measuring from full vacuum to 7,500 PSI with piezo-resistive semiconductor sensors and stainless steel wetted parts. Used as standalone measurement devices or as components in Proportion-Air control assemblies.
- Laboratory Equipment (Proportion-Air Supply) Benchtop laboratory equipment combining pressure and flow control for testing, calibrating, and reference checking products. Targeted at laboratory and test environments.
- Electro-Pneumatic Systems (Pump Controller) Turnkey Electro-Pneumatic Systems such as the Pump Controller, combining electronic controls with pneumatics for optimizing pump control and integration with precision pressure/flow control. Used by OEM and process customers seeking complete automation solutions.
- Legacy Products (BB, GP, ISF, ISQB, QPVT Series) Discontinued or soon-to-be-retired older product models (BB, GP, ISF, ISQB, QPVT Series) still available as replacement units for existing installations, with newer crossover models recommended for new applications.
Quantifiable outcome
- Response time under 10 milliseconds for mass flow controllers
- +6 more outcomes
Companies that use Proportion-Air
Customer profileNamed customers15 records
Segments11 records
Ideal customer profiles6 records
Proportion-Air technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Proportion-Air partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- Wilson CompanyfeaturedWilson Company is highlighted as a featured distributor for Proportion-Air, located in Addison, Texas. As an authorized distributor, they resell Proportion-Air products and provide local sales and support to customers in their territory.
Scale indicators7 records
Recent moves6 records
Expansion highlights5 records
Proportion-Air competitors and assessment
Company assessmentBroad incumbents
- Emerson (Fisher Regulators / Branson): Emerson's Fisher division is a market leader in pressure regulation and process control. Comparable to Proportion-Air as an industrial pressure regulator and valve manufacturer serving process and discrete industries, though Emerson operates at vastly broader scale and portfolio breadth (flow control, valves, instrumentation, automation).
- Parker Hannifin: Parker Hannifin is one of the largest global fluid power and motion control companies, offering pneumatic regulators, proportional valves, and mass flow products. Competes with Proportion-Air across precision pneumatic control but with a much broader motion, hydraulic, and electromechanical portfolio.
- Festo: Festo is a global leader in pneumatic automation and a key producer of electronic pressure regulators and proportional valves (e.g., VPPM, MPPE series). Direct overlap with Proportion-Air's electronic pressure regulators and mass flow controllers, particularly in factory automation and process control.
- SMC Corporation: SMC is the world's largest pneumatic component manufacturer, offering electronic regulators and proportional valve solutions. Competes broadly with Proportion-Air, although typically at higher volume / lower price points and with a much more extensive catalog.
- Bürkert Fluid Control Systems: Bürkert manufactures precision fluid control valves, mass flow controllers, and pressure regulators for medical, pharmaceutical, and process industries. Overlaps with Proportion-Air's mass flow controllers and electronic regulators, particularly in medical / pharma and process control verticals.
- IMI Precision Engineering (Norgren): IMI Precision (Norgren, IMI Buschjost) is a global supplier of fluid power components including proportional and electronic pressure regulators. Comparable in product category and target end-markets to Proportion-Air, with greater European footprint.
- MKS Instruments (at the flow / pressure level): MKS Instruments offers mass flow controllers and pressure/flow control solutions for semiconductor, life sciences, and industrial markets. Directly comparable to Proportion-Air's mass flow controller and high-resolution pressure regulator offering in semiconductor and lab/analytical segments.
Direct peers
- ControlAir Inc. ControlAir is a closely comparable US manufacturer of precision pneumatic and electronic pressure regulators, I/P transducers, and positioner products. Closest direct peer to Proportion-Air in terms of product overlap (electronic regulators, transducers) and target vertical (industrial automation, process control).
Emerging players
- Aalborg Instruments: Aalborg Instruments is a specialized manufacturer of mass flow controllers and meters for gases and liquids. Closely comparable to Proportion-Air's F-series and FQB series mass flow controllers, especially in laboratory, medical, and analytical applications.
Regional players
- Hoerbiger (flow control / piezo valves): Hoerbiger is a European fluid power and compression specialist with proportional valve and pressure regulator offerings. Comparable to Proportion-Air in proportional pneumatic control technology, although with primary focus on European industrial and process markets.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
Proportion-Air social profiles
Digital presenceProportion-Air compliance and trust
Trust signalCompliance2 records
Proportion-Air financial estimates
Financial estimateRevenue estimate
Valuation estimate
Proportion-Air leadership team
Management profileNumber of profiles
Proportion-Air funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Proportion-Air 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 Proportion-Air
What does Proportion-Air do?
Proportion-Air manufactures and sells proportional electro-pneumatic pressure and flow control devices, including electronic pressure regulators, mass flow controllers, mechanical pressure regulators, pneumatic safety regulators, industrial process valves, and pressure transducers. The company sells standard catalog products via an online store and authorized distributors, while custom-built-to-specification products are handled through direct sales with an applications engineering team, typically shipping within four weeks.
Is Proportion-Air a public or private company?
Proportion-Air is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Proportion-Air founded?
Proportion-Air was founded in 1986. It employs 51 to 100 people.
Where is Proportion-Air based?
Proportion-Air is headquartered in Mccordsville, United States, in the North America region.
How does Proportion-Air make money?
Three revenue lines are on record. Hardware Product Sales are the primary driver. The others are custom Product Orders and aftermarket Parts & Accessories.
Who are Proportion-Air's main competitors?
Broad incumbents on record are Emerson (Fisher Regulators / Branson), Parker Hannifin, Festo, SMC Corporation, Bürkert Fluid Control Systems, IMI Precision Engineering (Norgren) and MKS Instruments (at the flow / pressure level). ControlAir Inc. is listed as a direct peer. Aalborg Instruments is listed as an emerging player. Hoerbiger (flow control / piezo valves) is listed as a regional player.
Does Proportion-Air have an API?
No public API is recorded for Proportion-Air.
What industry is Proportion-Air in?
Proportion-Air's product category is Pneumatic Pressure and Flow Control. Its primary akta.pro industry code is IMAHAGAD, Pneumatic Air Preparation & Distribution (FRL assemblies, manifolds, air headers). Its NAICS code is 332912 and its SIC code is 5084.