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Devon Grennan News

11 Jan 2021

Preston Joins Global Diving & Salvage as Director of Marine Technology

Alisa Preston (Photo: Global Diving & Salvage)

Global Diving & Salvage, Inc. has appointed Alisa Preston, P. Eng., as Director of Marine Technology to lead the growth of the marine services company’s underwater technology resources.Preston will be responsible for advancing the development of sustainable and innovative marine technology and remotely operated underwater vehicle (ROV) services as part of the overall business strategies for both Seattle-based Global and sister company MER Diving.Preston brings to the role a background in mechanical engineering, nuclear physics, project management and entrepreneurship.

18 Nov 2018

Work‘bots’: Autonomous Vessels Arrive

The near-shore and inland workboat fleet is at the leading edge for autonomous vessel developmentWhile the advent of autonomous workboats are not exactly mainstream, you better believe that in the not-too-distant future they will be a reality on waterways in and around the U.S. Today there remain more questions than answers, particularly on the legal, logistics and insurance side of the coin. But the technology is evolving at record pace, providing many in the industry with mixed emotions. Excitement. Controversy. Curiosity. Skepticism. These are just a few of thoughts, and emotions that arise to any mention of the topic of autonomous vessels.It’s happening now.

13 Jun 2018

Spill Prevention & Response: Old Lessons, New Challenges

Credit: and paid for by Sea-Machines

Emerging spill response trends fit into two big categories: technology and a combination of economic and social forces. Both will shape what comes next.Florida’s stunning Tampa Bay stands out as exactly the kind of place where you have to think about hazardous materials emergencies. It was 25 years ago, on August 10, 1993, that a freighter collided with two barges near the entrance of Tampa Bay, causing a fire and spilling over 32,000 gallons of jet fuel, diesel, and gasoline and about 330,000 gallons of heavy fuel, devastating beaches, wildlife and habitat.

14 Jun 2017

Op/Ed: The Spill Response Industry's Greatest Challenges

Devon Grennan

Devon Grennan, president and CEO of Global Diving & Salvage, and president of the Spill Control Association of America (SCAA) asks the tough questions. What are the biggest challenges the spill response industry faces in light of the current political and economic climate in the United States? And what is SCAA doing to meet these challenges? I see the primary challenge that the spill response industry – as well as SCAA’s membership – currently has is to manage expectations and competing interests at a unique point in our nation’s energy renaissance.

21 Apr 2017

Global Opens New Alaska Office

Global Diving & Salvage, Inc. has expanded its regional operations with the addition of a new office in Juneau, Alaska. The new Juneau office will support southeast Alaska through several of Global’s primary service lines: marine construction, marine salvage and emergency response, diving operations and more. Global has been providing marine services in southeast Alaska for years through its Anchorage and Pacific Northwest offices; the new Juneau office is being established in response to client requests for a dedicated base, which will bolster the capacity of operations in that region. Bill Akan, a longtime member of the Global team, will serve as Southeast Alaska Operations Coordinator for the new Juneau location. “I’m thrilled to be returning to Juneau with Global,” Akan said.

06 Apr 2017

Grennan Appointed President of SCAA

Devon Grennan (Photo: Global Diving & Salvage)

Devon Grennan, CEO and President of Global Diving & Salvage, Inc., has been appointed President of the Spill Control Association of America (SCAA). SCAA is a professional association representing spill control contractors, manufacturers, distributors, government agencies, and various qualified individuals within the industry. Grennan has served on the board of SCAA since 2012. “SCAA is a unique association that has represented our diverse membership for 44 years,” said Grennan. Grennan has been elected to serve a two-year term.

20 Jan 2016

Global Diving & Salvage Hires VP in Houston

Mike Brown (Photo: Global Diving & Salvage)

Global Diving & Salvage, Inc. has hired Mike Brown as Vice President of Energy Services, working from the company’s Houston office. In his new position Brown, will focus his efforts to increase Global's position in the domestic and international energy market and will be directly responsible for developing business opportunities and providing oversight on operations for these clients as well as oversee Global’s saturation and deep diving operations throughout the company. Brown brings with him more than 38 years of experience in the offshore oil and gas industry.

19 Mar 2014

Interview: Devon Grennan CEO, Global Diving & Salvage

Devon Grennan  CEO, Global Diving & Salvage

Devon Grennan joined Global Diving & Salvage in 1995 and has served many roles. When company founders Tim Beaver and John Graham stepped down from direct operational involvement, Grennan was named CEO. Maritime Reporter & Engineering News caught up with Grennan for his insight into his company and the business of Diving and Salvage. What is Global Diving & Salvage? Global Diving is a full service subsea service provider with three core service lines: Marine Construction, Marine Casualty Response and Offshore Operations.

30 Jan 2014

Propeck Joins Global Diving In Gulf Of Mexico

John Propeck: Photo credit Global Diving & Salvage

Global Diving & Salvage, Inc. say they have hired John Propeck as General Manager for their Gulf Coast regional office, located in Houston, TX. The company adds that Propeck brings with him over forty-five years of multi-faceted experience in the commercial diving and maritime industry. He began his career as a commercial diver, logging over 1,000 days in saturation. He has over twenty years of program and project management experience, including business development, marketing, sales, purchasing and procurement management.

26 Nov 2013

Grennan to Head Global Diving & Salvage

Devon Grennan

After more than 30 years as founders and owners of Global Diving & Salvage, Inc., Tim Beaver and John Graham continue to remain excited about the future of the company. This month, they announced the newest chapter in Global’s history; Devon Grennan, President for the past four years, will now also take on the position of Chief Executive Officer. Mr. Beaver and Mr. Graham will maintain ownership and continue to serve on the Board of Directors, but will step down from direct operational involvement.

30 Aug 2012

Global Diving & Salvage Welcomes Ryan Smith

Ryan Smith

Global Diving & Salvage, Inc. Welcomes Ryan Smith as new Gulf Coast Region General Manager. Global Diving and Salvage, Inc., based in Seattle, WA, announces the hiring of Ryan Smith as general manager for its Gulf Coast Regional office, based in Houston, TX. In this position, Mr. Smith will be responsible for the day-to-day operations as well as the development of business opportunities. “Smith understands our unique diving personality and company philosophy, and is someone who will be a good leader and manager for our Gulf operations,” states Devon Grennan, Global’s President.

15 Mar 2012

Spill Control Association Names New Directors

From left to right: John Allen, SCAA Executive Director; Mike Gallagher, Harry Bedrossian, Devon Grennan and Andrew Altendorf, SCAA President (Photo: SCAA).

The Spill Control Association of America (SCAA), a professional association representing oil spill removal organizations (OSRO), spill managers, qualified individuals, consultants, equipment and material manufacturers, distributors, insurers, and educational and governmental organizations, announced the appointment of three new SCAA Directors and the renewal of a fourth Director for another two-year term. The appointments were announced at the Annual Meeting on March 8 in Alexandria, Va.

24 Oct 2011

No Oil Found on Sunken WWII Wreck

After 11 days of survey and sampling, using both the latest in technology and physical sampling it was determined that no oil remains on the SS Montebello. The on-scene assessment of the sunken World War II tanker S.S. Montebello is nearly complete off the coast of Cambria, CA. The unified command, led by the Coast Guard and California Department of Fish and Game's Office of Spill Prevention and Response, has determined that there is no substantial oil threat from the Montebello to the surrounding waters and shorelines. The S.S. Montebello sank after a Japanese submarine torpedoed the large oil tanker on December 23, 1941. The vessel broke apart landing upright with her bow separated from the majority of the wreckage.

24 Oct 2011

No Oil Found on Sunken WW II Wreck

Physical sampling determined that no oil remains after 70 years. After 11 days of survey and sampling, using both the latest in technology and physical sampling it was determined that no oil remains on the SS Montebello. The on-scene assessment of the sunken World War II tanker S.S. Montebello is nearly complete off the coast of Cambria, CA. The unified command, led by the Coast Guard and California Department of Fish and Game's Office of Spill Prevention and Response, has determined that there is no substantial oil threat from the Montebello to the surrounding waters and shorelines. The S.S. Montebello sank after a Japanese submarine torpedoed the large oil tanker on December 23, 1941. The vessel broke apart landing upright with her bow separated from the majority of the wreckage.

12 Oct 2011

ROV Deployed on WWII Era Wreck

Global Diving and Salvage Inc. has been contracted by the United States Coast Guard to determine if oil is present aboard the sunken ship S.S. Montebello, which sits 900 feet below the ocean surface approximately 6.5 miles off the coast of Cambria, California. The S.S. Montebello sank after a Japanese submarine torpedoed the large oil tanker on December 23, 1941. The vessel broke apart landing upright with her bow separated from the majority of the wreckage. To date, no signs of leakage have been detected, and from previous visual inspections by submarine, the cargo section appears to be intact. The possibility of future oil release has prompted the U.S. Coast Guard to contract Global to determine the integrity of the cargo section and its contents. Coast Guard Capt.

11 Oct 2011

ROV Sent to Determine Oil at 900 Feet

ROV will be used in an attempt to determine if oil is present on sunken WWII tanker. Global Diving and Salvage Inc. has been contracted by the United States Coast Guard to determine if oil is present aboard the sunken ship S.S. Montebello, which sits 900 feet below the ocean surface approximately 6.5 miles off the coast of Cambria, California. The S.S. Montebello sank after a Japanese submarine torpedoed the large oil tanker on December 23, 1941. The vessel broke apart landing upright with her bow separated from the majority of the wreckage. To date, no signs of leakage have been detected, and from previous visual inspections by submarine, the cargo section appears to be intact. The possibility of future oil release has prompted the U.S.

01 Jun 2011

Wrecks of the World II: Evaluating and Addressing Potential Underwater Threats

Delegates and speakers from around the globe will converge on the Maritime Institute of Technology and Graduate Studies (MITAGS) in the Washington, DC area Linthicum Heights, MD) US to participate in the second Wrecks of the World conference being held June 6-7, 2011. This is a unique opportunity to meet with global experts to explore potentially polluting wrecks and recent incidents around the world. These wrecks have caused government agencies and responsible parties to look…

29 Oct 2009

ASA Names Committee Leaders

The American Salvage Association (ASA) has named the following as leaders of its Standing Committees for 2009-2010:   Jack Ringelberg, JMS Naval Architects and Salvage Engineers, Chairman, ASA Associate Membership Committee   Paul Smith, The Glosten Associates, Vice Chairman, ASA Associate Membership Committee   Matt Miller, The Glosten Associates, Chairman, ASA Membership Committee   Devon Grennan, Global Diving & Salvage, Inc., Chairman, ASA Safety Committee   Tim Williamson, Donjon-SMIT, Chairman, ASA Security Committee Chairman              Todd Schauer, Resolve Marine Group, Chairman, ASA Training Committee Chairman