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Merger creates world-class waste management name


By David Porter

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Denholm Environmental's Brian Ritchie
Denholm Environmental's Brian Ritchie

The merger of two well-known sector leaders has led to the creation of a new, world-class name in specialist waste management services, specialist industrial services and process decontamination.

With the acquisition of Hazco Environmental by Denholm Macnamee in March 2020 the company’s headcount doubled to 140 staff across its Invergordon, Grangemouth and Inverurie bases.

This augmented the earlier purchase out of administration of the trade and assets of Invergordon-based MSIS Group in September 2019.

Now, in a strategic move to capitalise on energy transition opportunities, Denholm Environmental Limited has been founded to provide world-class liquid waste management, specialist industrial cleaning and process decontamination services and grow its client base, onshore, offshore and overseas.

It is anticipated that the latest move will lead to the creation of more jobs across its three sites in the months ahead.

Denholm Environmental carries an enviable, owned modern equipment fleet across its full geographical footprint including rigid and articulated vacuum tankers, liquid ring tankers, jet-vac combination tankers, DISAB tankers, ATEX compliant Zone I and II mobile vacuum units and intrusive and non-intrusive tank and vessel cleaning equipment.

In addition are ATEX compliant Zone II and safe area operation HP/UHP water jetting units, automated water jetting systems, tanks, pumps and accessories which empower the new business with the significantly increased capability to operate at much higher capacity.

Commenting on the news Denholm Environmental managing director Brian Ritchie said: “This is not a shift in focus but an addition to what we do and the opportunity to broaden our horizons and meet our growth and sustainability strategies.

"We understand that the key to our future sustainability and growth lies in striking a careful balance between traditional and emerging markets.

“By celebrating our strengths and synergies under the new Denholm Environmental banner, we hope to further enhance our already expansive service offering to current and future clients and we look forward to forging a successful future as one.”

Denholm Environmental is a leading one-stop, turnkey provider of specialist industrial services, liquid waste management and decontamination solutions to the oil and gas, petrochemical, power generation, utilities, brewing and distilling, marine, construction and aquaculture industries.


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