What Lin & Associates does

Lin & Associates is a Phoenix-based control system integration company founded in 1992 by Diana Lin, serving the oil and gas refining, petrochemical, chemical, power, and pulp and paper industries. The firm specializes in industrial automation across the three dominant DCS platforms — Honeywell Experion PKS/TPS/TDC, Emerson DeltaV, and Yokogawa Centum VP — providing DCS configuration, HMI graphic design, advanced process control consulting, SIS programming and lifecycle management, alarm management, custom programming, and training services. Its proprietary software portfolio centers on two patented product lines: ALTIUS, a high-performance HMI solution bundling navigation, monitoring, graphics, dashboard, and toolkit components; and DELTUM, a model-less multivariable control technology built on the patented Rate-Predictive Control algorithm acquired from APC Performance in 2020. The company also offers the PI Solution HMI Converter, which translates DCS graphics directly into AVEVA PI Vision displays.

Lin & Associates monetizes through a mix of professional services (project-based engineering and consulting), software licensing (direct and via the exclusive Honeywell Process Solutions global reseller channel for ALTIUS), and recurring training revenue (instructor-led and computer-based courses including LA-200, LA-300, LA-302, and LA-310). The go-to-market combines enterprise field sales, channel partnerships (Honeywell, OSIsoft/AVEVA), and event-driven demand generation at conferences such as AIChE Spring Meeting and Honeywell User Group. The customer base includes most major US refiners (Valero, BP, Phillips 66, PBF Energy, Total, Atlantic) and international operators (Suncor, Husky, Sasol, LyondellBasell, Procter & Gamble, Graphic Packaging), with engagements ranging from greenfield commissioning to DCS migration and SIS lifecycle programs.

Name

Lin & Associates

Legal name

Lin & Associates, Inc.

Website

https://linandassociates.com

Company type

Private

Founded year

1992

Operating status

Operating

Headcount range

51–100 employees

Short description

Lin & Associates is a Phoenix-based control system integrator founded in 1992 that provides DCS configuration, HMI design, advanced process control, and SIS services to US and international oil refineries, petrochemical plants, chemical, power, and pulp and paper operators using Honeywell, Emerson, and Yokogawa platforms.

Ownership category

akta.pro rank

Product category

Industrial Automation & Control Systems Integration

NAICS

Computer Systems Design and Related Services (54151), Computer Systems Design Services (541512), Custom Computer Programming Services (541511), Other Scientific and Technical Consulting Services (54169), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451)

SIC

Services-Computer Integrated Systems Design (7373), Industrial Instruments For Measurement, Display, And Control (3823), Services-Computer Programming Services (7371), Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Control System Integration & Engineering Services (Design, Commissioning, Retrofits) (IMAGABAK)

akta.pro secondary industry

Instrumentation, Controls & Automation Engineering Consulting (BPAHAIAM)

Keywords

• Control system integration
• Industrial automation software
• Advanced process control
• HMI graphic design
• DCS configuration services

Headquarters

HQ city

Phoenix

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, Marketing or Sales, Infrastructure

Revenue model

1. Software Licensing: Licensing and support agreements for proprietary software products including ALTIUS HI-Performance HMI Solution, DELTUM multivariable control, and PI Solution. Delivered through direct sales and Honeywell channel partnership for global distribution.
2. Engineering Services: Control system integration services including DCS configuration, HMI graphic design, advanced process control consulting, SIS programming and lifecycle management, alarm management, and custom programming. Project-based engagements with close client collaboration.
3. Training Services: Instructor-led and computer-based training courses for DCS configuration, HMI graphic building, operator training, and ALTIUS/DCS implementation. Course catalog includes LA-200 (HMIWeb ALTIUS), LA-300 (C300 CM), LA-302 (C300 SCM), LA-310 (TPS CL).

Pricing tiers

Go-to-market motion3 records

Distribution channels3 records

Marketing channels5 records

Core offering

Lin & Associates is a control system integration company that sells proprietary automation software (the patented ALTIUS HI-Performance HMI Solution, DELTUM model-less multivariable control, and PI Solution for AVEVA PI Vision) and delivers engineering services including DCS configuration, HMI graphic design, advanced process control consulting, TUV-certified SIS programming, alarm rationalization, custom control programming, and PLC/safety systems integration. Work centers on Honeywell Experion, Emerson DeltaV, and Yokogawa DCS platforms and is delivered via direct enterprise sales plus an exclusive Honeywell global reseller channel for ALTIUS.

Product overview

Lin & Associates offers a unified product portfolio centered on the ALTIUS HI-Performance HMI Solution, a patented comprehensive HMI platform that can be purchased as a complete integrated solution or as individual modular components including the Three-Tier Navigation Menu, LoopWatch Monitor, Advanced Graphic Library, Dashboard Library, and LimitWatch. The portfolio also includes DELTUM, a model-less multivariable control technology that provides advanced process control for applications traditionally below the cost threshold of conventional MPC. The PI Solution extends ALTIUS capabilities to AVEVA PI Vision through an HMI conversion tool. Services complement the product line with DCS configuration, HMI graphic design, advanced process control consulting, SIS programming and lifecycle management, alarm management, training, custom programming, and PLC/safety systems integration. The company specializes in Honeywell Experion PKS, Emerson DeltaV, and Yokogawa Centum VP platforms.

Differentiator

Problem solved

Functional benefit

Brands

• ALTIUS: ALTIUS 'HI-Performance HMI Solution' is a patented and distinct HMI solution that provides improved situational awareness and HMI performance in an intuitive environment. It includes components like Three-Tier Navigation Menu, LoopWatch Monitor, Advanced Graphic Library, and Dashboard Library.
• DELTUM

Products and services

• ALTIUS HI-Performance HMI Solution Patented, comprehensive human-machine interface (HMI) solution that provides improved situational awareness and HMI performance for plant operators through integrated navigation, monitoring, graphic, dashboard, and toolkit components; available as a complete solution or as individual modules and supports Honeywell Experion PKS, Emerson DeltaV, Yokogawa Centum VP, and AVEVA PI Vision.
• DELTUM Model-less Multivariable Control Patented model-less multivariable control product that fills the gap between advanced regulatory control (ARC) and conventional multivariable control (MPC), using patented Rate-Predictive Control (RPC) algorithm to deliver agile, affordable advanced process control for small and mid-sized applications such as distillation columns, hydrotreater sulfur control, heater pass balancing, and hydrocracking reactors.
• PI Solution (HMI Converter for AVEVA PI Vision) Standalone product consisting of an HMI Converter tool that converts DCS graphics (Honeywell Experion and Emerson DeltaV) directly to AVEVA PI Vision displays and an ALTIUS symbol library for PI Vision, eliminating manual conversion and ongoing maintenance effort for analytics and historization use cases.
• DCS Configuration Services Project-based DCS configuration, staging, and testing services maintaining Honeywell TDC/TPS/Experion, Emerson DeltaV, and Yokogawa Centum VP systems in-house before on-site loading and commissioning for refinery and petrochemical operators.
• HMI Graphic Design Services Development of effective process graphics for operating personnel at refineries and chemical plants following a 20-step quality control checklist, delivered as consistent and intuitive operational graphics using customer or L&A customizable standards.
• Advanced Process Control Consulting Expert control consulting services including loop tuning surveys, hydrocracking reactor control, process control unit studies, multivariable control performance audits, distillation control optimization, and inferential control implementation for plant operators.
• SIS Programming & Life-Cycle Management TUV-certified Safety Instrumented System (SIS) engineering services including safety requirement specification development, SIS programming, application test simulation, factory and site acceptance testing, proof test procedures, and site audits for compliance.
• Alarm Management Services Alarm management design and maintenance program aligned with EEUMA Alarm System Philosophy Guide, including alarm rationalization, master alarm database development, alarm grouping, and Honeywell ACM product implementation for plant operators suffering alarm overload.
• Training Services Instructor-led and computer-based training courses covering DCS configuration, HMI graphic building, operator training, and ALTIUS/DCS implementation for engineering, maintenance, and management personnel; offered on-site, in-house, or as self-paced computer-based training with a scheduled public course catalog (LA-200, LA-300, LA-302, LA-310).
• Custom Programming Services Field-proven custom control application program development for pipeline control, blending applications, sulfur pit monitoring, environmental reports, compressor thermodynamics, coke drum swings, steam header controls, and performance assessments for plant operators.
• PLC & Safety Systems Integration Database development, logic development and programming, control strategy documentation, and on-site cutover/start-up assistance for PLC and safety systems integration with DCS using Modbus, DH+, and other protocols.

Quantifiable outcome

• 5-10% energy savings potential in distillation control applications where reboiler or reflux is not in cascade mode
• +1 more outcomes

Named customers12 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration1 record

AI capability9 records

Feature8 records

Partnerships

Four partnerships are on record, tiered strategic, core and minor.

• Fuller TechnologiesstrategicStrategic or Co-development Partner · 28 June 2023Lin & Associates announced collaboration with Fuller Technologies in June 2023 to enhance their ECS/ProcessExpert software by incorporating the adaptive model-less multivariable control solution DELTUM. This partnership integrates DELTUM into Fuller Technologies' advanced process control software offerings.
• OSIsoftstrategicTechnology or Integration · 1 February 2020Lin & Associates became an OSIsoft partner in February 2020. The partnership enables L&A to expand control systems integration and visualization experience to the OSIsoft PI platform. L&A leverages deep DCS knowledge and patented visualization design to provide visualization and tight integration of DCS information with PI, expanding to real-time and historical data analytics.
• Honeywell Process SolutionscoreChannel Partner/ Reseller/ Distributor · 1 January 2018In 2018, Lin and Associates became an Authorized Technology Provider for Honeywell Process Solutions. Under this agreement, Honeywell will be the exclusive global reseller of licensing and support agreements for the ALTIUS HMI software outside of the existing ALTIUS install base. Honeywell supports continued development of L&A's ALTIUS HI-Performance HMI Solution for Honeywell's Experion Process Knowledge System (PKS).
• User Centered Design Services (UCDS)minorImplementation/ SI/ Consulting PartnerUCDS is a Practical Human Factors consulting company focused on Operational Excellence with over 100 years of collective experience in processing industries. Their expertise in operational work environment design complements L&A's control system integration services for reducing abnormal situations and improving plant performance.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Emerson Automation Solutions: Emerson's DeltaV DCS and AMS suite are core platforms Lin & Associates integrates with and builds ALTIUS HMI on. Emerson offers competing process automation, APC, and HMI functionality directly, and is one of the closest direct peers in refining and petrochemical control system integration.
• Honeywell Process Solutions: Honeywell's Experion PKS is the primary platform Lin & Associates supports and the channel partner for ALTIUS globally. While partner, Honeywell also competes with its own HMI and APC offerings, making it both a primary channel and a direct comparable peer in the DCS/HMI market.
• Yokogawa Electric Corporation: Yokogawa's CENTUM VP DCS is one of the three platforms Lin & Associates explicitly supports. Yokogawa is a direct peer in industrial automation and control system integration for refining and petrochemical customers worldwide.
• Aspen Technology (AspenTech): AspenTech (now part of Emerson) is a leading provider of advanced process control and optimization software (Aspen DMCplus). DELTUM competes head-to-head with AspenTech's MPC offerings in the refining/petrochemical APC market.

Broad incumbents

• Rockwell Automation: Rockwell Automation provides industrial automation, HMI (FactoryTalk View), and process control solutions across process and discrete industries. It is a broader incumbent competing for plant-level automation and HMI budgets that overlap with Lin & Associates' offerings.
• ABB Industrial Automation: ABB offers ABB Ability System 800xA DCS and a broad industrial automation portfolio used by refineries, chemical, and power plants. A broader incumbent with overlapping DCS and process automation capability relevant to Lin & Associates' customer base.
• Schneider Electric (AVEVA): AVEVA, part of Schneider Electric, provides the PI System and PI Vision platform that Lin & Associates integrates ALTIUS with via the PI Solution HMI Converter. A broader incumbent with overlapping industrial software, HMI visualization, and process data infrastructure.
• Siemens Process Automation: Siemens provides SIMATIC PCS 7 DCS and a broad industrial automation portfolio serving process industries. A broader incumbent peer for control system integration and HMI work in refining and chemicals.

Emerging players

• Inductive Automation: Inductive Automation's Ignition HMI/SCADA platform is increasingly used in process industries and competes with traditional DCS-embedded HMI for plant visualization. An emerging player with partial overlap in HMI functionality adjacent to ALTIUS.
• Fuller Technologies: Fuller Technologies is an emerging process control software firm whose ECS/ProcessExpert platform integrates Lin & Associates' DELTUM MVC. A strategic partner that also resells competing APC technology, making it an adjacent peer with partial overlap in advanced process control.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/Lin_Associates
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Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

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 Lin & Associates