Top Architectural & Engineering Services companies

AECOM is the world’s trusted infrastructure consulting firm, delivering professional services throughout the project lifecycle – from planning, design and engineering to program and construction management. On projects spanning transportation, buildings, water, new energy and the environment, our public- and private-sector clients trust us to solve their most complex challenges. Our teams are driven by a common purpose to deliver a better world through our unrivaled technical expertise and innovation, a culture of equity, diversity and inclusion, and a commitment to environmental, social and governance priorities. See how we are delivering sustainable legacies for generations to come at aecom.com and @AECOM.

We deliver impactful global solutions to create a more connected, sustainable world — from intelligence to infrastructure, cybersecurity to space exploration. Our 52,000 employees across 50 countries work every day, challenging the expectations of today to reinvent the way we’ll all live tomorrow.

We are more than the sum of our combined entities and our new visual identity reflects who we are now. We are 36,000 employees in 500 offices in 40 countries around the world. We are technical experts and strategic advisors including engineers, technicians, scientists, architects, planners, surveyors and environmental specialists, as well as other design, program and construction management professionals. We create future-proof projects for the communities that we work and live in. Questioning the status quo is part of our identity, as engineering is about asking questions, looking at problems from different angles, and finding solutions that often break paradigms.

WorleyParsons Corporation puts its energy into energy and chemical plants. The US subsidiary of WorleyParsons Limited, the company is a top designer and builder of modular facilities for refineries and process plants in remote areas and harsh environments. WorleyParsons, whose services also include procurement and project management, targets the hydrocarbons, minerals and metals, infrastructure and environment, and power industries. Offshore work is provided by its INTECSEA arm. The US operations are supported by the WorleyParsons worldwide network. The company's global diversity and client base allow it to advance even in challenging market conditions.

From the ground up, Fluor Corporation is one of the world's largest international design, engineering, and contracting firms. The company provides engineering, procurement, construction, maintenance, and project management services for a variety of industrial sectors around the world. Its myriad portfolio includes manufacturing plants, refineries, pharmaceutical facilities, health care buildings, power plants, and telecommunications and transportation infrastructure. Oil and gas, industrial, and infrastructure projects account for more than half of Fluor's sales. The group also provides operations and maintenance services for its projects, as well as administrative and support services to the US government.

Bechtel is one of the most respected global engineering, construction, and project management companies. Together with our customers, we deliver landmark projects that foster long-term progress and economic growth. Since 1898, we’ve completed more than 25,000 extraordinary projects across 160 countries on all seven continents. We operate through four global businesses: Infrastructure; Nuclear, Security & Environmental; Oil, Gas & Chemicals; and Mining & Metals. Our company and our culture are built on more than a century of leadership and a relentless adherence to our values, the core of which are safety, quality, ethics, and integrity. These values are what we believe, what we expect, what we deliver, and what we live. www.Bechtel.com

It gets hot enough in India to stress even the healthiest resident, but India's largest power company, National Thermal Power Corporation (NTPC), thankfully generates enough electricity to run a lot of air conditioners. State-run NTPC, which generates almost 29% of India's power supply, has 22 coal and gas-fired power plants and interests in four more through its SAIL Power Supply joint venture. The company's plants (including joint ventures) have a combined capacity of more than 30,240 MW and feed distribution grids throughout India; prices are determined by India's Electricity Act. NTPC also offers global power consulting and engineering and construction services. India's government owns nearly 90% of NTPC.