Avingtrans plc has acquired Derby-based pump manufacturer Slack & Parr for a total consideration of £2.6m, with our support.

Having gone into administration, the acquisition of the family-owned manufacturer will save 100 skilled jobs across manufacturing facilities in Kegworth, the USA and Asia. Founded in 1917, Slack & Parr is a market-leading supplier of high-precision gear metering pumps, hydraulics flow dividers and industrial pumps to customers around the world.

Who are Avingtrans plc?

Avingtrans plc, which designs, manufactures and supplies critical components, modules, systems and associated services to the energy, medical and industrial sectors, has a strong track record for successfully investing in and growing engineering businesses in highly-engineered, niche markets.

Due to operate within Avingtrans’ subsidiary brand Hayward Tyler, the group plans to strengthen Slack & Parr’s market presence, improving operational efficiency and innovation.

Austen Adams, Divisional Managing Director at Avingtrans, said: “We are pleased to have completed this acquisition, which brings another globally-respected, British heritage brand under the direction of the Avingtrans team. The sorts of challenges this business has faced are familiar to us and we are experienced in resolving them, having successfully turned around other businesses under similar circumstances. Slack & Parr’s global footprint, combined with its well-invested operational capability, powerful brand, highly skilled workforce and large installed base provide a great opportunity to re-establish the business on a firm footing going forward.”

The deal follows Avingtrans’ recent offer for the radiology technology experts, Adaptix. Having previously been a minority shareholder, Avingtrans will take full ownership of the Cambridge-based company after majority shareholders voted for the deal, subject to certain further conditions including approval under the UK National Security & Investment Act.

Who are Slack & Parr?

Slack & Parr has stood the test of time and progressed to become a market leader in high precision engineering, supplying gear metering pumps, rotary hydraulic flow dividers and industrial dosing pumps throughout the United Kingdom and worldwide.

They are a group of companies with a core interest in the manufacture of components for a variety of industries. their advanced technology and commitment to quality and service has set us apart from others in our field.

Their experience with some of the world’s leading companies has secured their position within the industry.


What Shakespeare Martineau’s corporate team had to say about this acquisition?

Partner Keith Spedding, who led both deals with the support of Jennie Davis, legal director and other specialists, said: “The cost of doing business is having an impact on nearly every sector, we expect to see more acquisitions by experienced international groups, like this one, in the medtech and engineering markets.

“Working with Avingtrans plc for more than a decade has been an exciting journey – we’ve seen them acquire quality businesses, build them and sell them and we have been able to support this growth with our international, corporate and medtech expertise.”


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Our corporate team can help is many ways including corporate financing, corporate governance, corporate restructuring, equity capital markets, mergers and acquisitions and, private equity & venture capital.

We are a multi award winning business who provide legal advice for life and business, our purpose is clear: to unlock potential. 

Working with organisations of all sizes, the firm delivers a broad range of specialist legal services and has expertise across multiple areas including but not limited to: energy, education, banking and finance, healthcare, investment funds, manufacturing, agriculture, family business, Islamic finance, later living, social housing, charities and real estate. We also provide services for families and private clients.

We are part of legal and professional services group Ampa, and are a certified B Corporation, meaning we have been verified by B Lab to meet high standards of social and environmental performance, transparency, and accountability.

We have been listed in Best Companies 2022 as one of the top 100 best large companies to work for in the UK and ranked as a top 25 law firm, top 75 East Midlands company, top 75 West Midlands company, and top 50 large London company to work for. To see our awards head over to the who we are webpage.

With more than 1,200 people, we have hubs in London, Milton Keynes, Birmingham, Solihull, Stratford-upon-Avon, Bristol, Nottingham, Leicester, Lincoln, Sheffield and Edinburgh.


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Keith advises companies (both public and private), partnerships and their owners on all aspects of corporate and partnership law.

Keith helps companies grow and evolve whether by organic growth or by mergers and acquisitions. He advises all sizes of companies from SMEs to large multinationals helping them to achieve their ambitions. He also advises on fund raisings, IPOs and sales with an eye always on the commercial objectives.

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Published: 8th August 2023
Area: Corporate & Commercial

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