DeSimone Acquires ESS Detailing to Scale Global Fabrication Modeling

NEW YORK, NY – September 29, 2026 – The architecture, engineering, and construction landscape has long been defined by a heavily fragmented value chain. For decades, the gap between a structural engineer's initial vision and a steel fabricator's physical reality has been a breeding ground for schedule delays, compounding costs, and structural rework. Today, DeSimone Consulting Engineering, a multi-service engineering firm headquartered in New York City, made a decisive strategic move to permanently bridge that gap, announcing the acquisition of Mumbai-based ESS Detailing Services LLP.

Executed through its regional subsidiary, DeSimone Consulting Engineering India Private Limited, the acquisition absorbs nearly 200 skilled detailing professionals into DeSimone’s global workforce. The merger formalizes a multi-year collaborative partnership between the two entities, transitioning ESS co-founders Arif Qureshi, Akbar Khan, and Aasim Hodekar into key leadership roles as DeSimone Principals based in India.

While the specific financial terms of the transaction remain undisclosed—corporate filings indicate ESS generated under ₹10 crore in revenue for the fiscal year ending in 2025—the strategic implications of the deal far outstrip its immediate top-line contribution. This acquisition is a calculated maneuver to scale DeSimone’s proprietary Fabrication Ready Modeling capabilities and establish a robust operational beachhead in one of the world's fastest-growing construction markets.

Closing the Design-to-Fabrication Gap

To understand the gravity of this acquisition, one must look at the traditional friction points in structural engineering. Historically, engineering firms issue design drawings that are subsequently handed off to third-party detailers, who then create the shop drawings for steel fabricators. This sequential hand-off inevitably leads to clashes, endless Requests for Information (RFIs), and schedule bleeding.

DeSimone has been aggressively dismantling this siloed approach through its Fabrication Ready Modeling (FRM) service. FRM involves a unique, concurrent collaboration where structural engineers and detailers work side-by-side to create highly sophisticated LOD 400 models during the structural design phase itself. LOD 400—Level of Development 400—signifies a digital twin so precise that it includes every weld, bolt, and plate, rendering it immediately ready for fabrication and assembly.

"Establishing a strong presence in India represents a critical step in achieving DeSimone's long-term, global growth strategy," said Stephen V. DeSimone, PE, Chairman and CEO of DeSimone Consulting Engineering. "Further deepening DeSimone's modeling and detailing expertise with the addition of the ESS team strengthens our ability to deliver integrated solutions and multidisciplinary engineering services to clients around the world."

By bringing nearly 200 ESS specialists in-house, DeSimone is drastically cutting the lead times associated with traditional steel procurement and fabrication. The firm has already successfully deployed this integrated methodology on high-profile developments, including the award-winning One Times Square Redevelopment in midtown Manhattan, the Hard Rock Hotel and Casino in New York City, and the new Bruce Springsteen Center for American Music in New Jersey.

Vertical Integration in a Horizontal Industry

The absorption of ESS Detailing is not an isolated event; it is the latest node in a broader pattern of vertical integration by DeSimone. In January 2023, the firm acquired the global detailing and Building Information Modeling business of the Dowco Group, a move that brought early adopters of Tekla Structures 3D modeling software into the fold. Following that, in March 2024, DeSimone launched a dedicated steel procurement service aimed at enhancing cost and delivery efficiencies.

When viewed through the lens of these previous expansions, the ESS acquisition completes a compelling turnkey ecosystem. DeSimone now exerts direct control over the structural lifecycle—from initial architectural consulting and structural engineering, down to microscopic LOD 400 detailing, and finally, direct steel procurement.

"We've collaborated with DeSimone's structural detailing team as a trusted partner for many years, making our ability to work as one unified global team seamless going forward," noted Arif Qureshi, co-founder and former CEO of ESS Detailing Services. "Both ESS and DeSimone leadership share key objectives—global growth and the enhanced integration of structural engineering with Fabrication Ready Modeling. In joining forces, we bring together our teams, experience, and capabilities to deliver greater value to our clients while creating new opportunities for growth."

Industry observers note that this level of integration provides a massive competitive moat. As one veteran AEC technology consultant remarked on the shifting landscape, "When a single firm controls the engineering, the detailing, and the procurement data, they aren't just selling blueprints anymore; they are selling absolute schedule certainty. In today's macroeconomic environment of high interest rates and supply chain volatility, schedule certainty is the most valuable commodity in commercial real estate."

Transforming India from Back Office to Frontline Market

Beyond scaling global delivery, the acquisition signals a profound shift in how Western engineering consultancies view the Indian market. For the past two decades, multinational firms have heavily leveraged India as an offshore back-office, utilizing local talent pools for labor arbitrage to support North American and European projects.

DeSimone’s strategy diverges significantly from this legacy model. While the ESS team will undoubtedly bolster DeSimone’s 24-hour global production cycle, the explicit goal is to capture domestic market share within India.

Ewen Dobbie, DeSimone Principal, highlighted this dual mandate: "This is an important step in the evolution of DeSimone's global Fabrication Ready Modeling and detailing business... It gives us an excellent platform from which to build DeSimone's broader multidisciplinary engineering presence in India. Our objective is not simply to add capacity, but to create a globally integrated capability that delivers even better project outcomes for our clients."

India is currently experiencing a historic infrastructure super-cycle, driven by rapid urbanization, smart city initiatives, and massive government capital expenditure in transportation and commercial hubs. These complex, large-scale projects increasingly mandate the sophisticated, integrated engineering solutions that DeSimone provides.

ESS Detailing is uniquely positioned to serve as the vanguard for this local expansion. The firm is ISO 9001:2015 certified, ensuring a globally recognized Quality Management System is already deeply embedded in its operations. Furthermore, its affiliations with the American Institute of Steel Construction (AISC) and the National Institute of Steel Detailing (NISD) prove a long-standing adherence to international standards, bridging the gap between local execution and global quality control.

The Ripple Effect on Global Engineering Workflows

Since its founding in 1969, DeSimone has evolved from a boutique structural design firm into a multidisciplinary powerhouse boasting over 700 staff members across offices in the United States, Canada, the United Kingdom, South America, and Asia. This latest acquisition is a testament to how the mechanics of modern advancement are often hidden in the granular details of operational workflows.

The integration of ESS Detailing Services into DeSimone Consulting Engineering is more than a standard corporate merger; it is a structural realignment of how complex buildings are brought to life. By collapsing the boundaries between engineering and fabrication, and by elevating its Indian operations from a support function to a frontline market engine, DeSimone is actively rewriting the rules of digital project delivery. As the construction industry continues its slow but inevitable march toward total digitization, firms that own the uninterrupted data stream from the architect's screen to the fabricator's shop floor will be the ones shaping the skylines of the future.