Aspen Technology, known as AspenTech, is an industrial software company based at 20 Crosby Drive in Bedford, Massachusetts, and a wholly owned subsidiary of Emerson Electric. Emerson has consolidated the business since combining its industrial software operations with AspenTech in 2022 and took full ownership in March 2025, and the company's about page states that AspenTech is part of Emerson. Aspen Technology's shares were listed on Nasdaq under the ticker AZPN.

Origins

The company traces its technology to the Advanced System for Process Engineering project, a joint research effort between the Massachusetts Institute of Technology and the US Department of Energy launched in response to the energy crisis of the 1970s, which produced one of the chemical industry's first computer-based process modelling and simulation tools. Aspen Technology was founded in 1981, listed in 1994, moved its headquarters to Bedford in 2014, and in May 2022 was combined with Emerson's industrial software businesses, including OSI Inc. and Geological Simulation Software, under the AspenTech name. Company material notes a net-zero operations commitment for 2030.

Product portfolio

AspenTech groups its software into five areas:

  • Performance Engineering - the Aspen Plus and Aspen HYSYS process simulators, Aspen Basic Engineering, Capital Cost Estimator, Energy Analyzer, Fidelis, OptiPlant 3D Layout and Exchanger Design and Rating.
  • Manufacturing and Supply Chain - Aspen DMC3 advanced process control, Aspen GDOT, Aspen Unified PIMS, planning, scheduling, reconciliation and movements products, Aspen Plant Scheduler, Production Execution Manager, InfoPlus.21 historian and Supply Chain Planner.
  • Asset Performance Management - Aspen Mtell and Aspen ProMV for predictive maintenance and multivariate analysis.
  • Digital Grid Management - the OSI product family for generation, energy and distribution management, distributed energy resource management, Continua pipeline management, Cimphony network model management and grid applications.
  • Subsurface Science and Engineering - Aspen RMS, SeisEarth, Geolog, SKUA, Tempest, Epos, EarthStudy 360, GeoDepth, Echos and OpsLink for reservoir modelling, interpretation and petrophysics.

The Industrial Data Fabric, built on AspenTech Inmation, provides the integration layer beneath these products, and AVA is the company's AI assistant for industrial workflows.

Industries served

The site's industry pages cover upstream oil and gas, midstream and LNG, downstream refining, engineering, procurement and construction, bulk and specialty chemicals, polymers, pharmaceuticals, power generation and transmission and distribution, metals and mining, pulp and paper, water and wastewater, food and beverage, consumer packaged goods and transportation. Subsurface tools are marketed to exploration and production companies, while grid products address utilities and transmission operators.

Releases and customer deployments

Software released through Emerson in 2026 includes refinery scheduling and blending tools for improving margins, published in July 2026; a new Emerson industrial AI platform for enterprise-scale deployments announced in May 2026; a next-generation industrial data fabric built on AspenTech Inmation published in May 2026; and an Emerson contract with the Texas utility Oncor announced in May 2026. Customer material in September 2026 described OQ standardising planning and scheduling on Aspen Petroleum Scheduler, and a July 2026 video covered the deployment of AVA at Repsol for monitoring advanced process control applications. The company also publishes webinars, executive briefs and a podcast series on industrial operations and AI.

Training, partners and contact

Alongside the software, AspenTech runs AspenTech University, an academic programme for universities and a competency development and sustainment service for customers, and it publishes training options for each product family. A partner directory covers implementation and technology partners, and the company maintains events and webinars, blogs, videos, podcasts and media coverage sections. Company material highlights the release of AspenTech V15, its Sustainability Pathways packages covering areas such as emissions management, hydrogen and carbon capture, and a place on a Newsweek list of the most trustworthy software companies.

AspenTech's website lists offices and sales contacts behind a single contact link, describes the company as a global provider of asset optimisation and industrial AI software, and names 20 Crosby Drive, Bedford, Massachusetts 01730 as its address. General enquiries use [email protected], and North American sales enquiries have a separate toll-free number. The company now sits in Emerson's software portfolio alongside Emerson's own automation business, which supplies the control systems and instrumentation beneath AspenTech's optimisation layer. The site's newsroom carries press releases, feature stories, videos, blogs and media coverage, and the About section hosts awards, careers, events and a partner directory.