Lord’s Mark acquires Radiotone maker Radio Electric to build specialised transformer capability
Lord’s Mark Industries has acquired Radio Electric, the company behind Radiotone, gaining specialised transformer technology, established customers, export relationships and available production capacity.
✨ Key Takeaways
Lord’s Mark Industries Limited has acquired Radio Electric Private Limited, owner of the Radiotone brand, through its Lighting and Energy Division, marking its entry into specialised electrical manufacturing and transformer engineering.
The acquisition gives Lord’s Mark control of a profitable, debt-free operating business with an established manufacturing facility that is currently running at around 50 per cent of machine capacity on a single shift. This provides scope to increase output without immediate large capital expenditure, although the company has not disclosed the transaction value or financial details of Radio Electric.
Founded in 1939, Radio Electric brings nearly nine decades of engineering experience, while the Radiotone brand has been in the market since 1980. The company manufactures variable autoTransformers, widely known as Variacs, and toroidal transformers, with products largely designed to customers’ technical specifications.
Its range includes three-phase air-cooled Variacs of up to 1,000 A, oil-cooled Variacs of up to 2,000 A, double-layer Variacs and single-phase toroidal transformers ranging from 30 VA to 20 kVA. It also makes specialised variable transformers, AC power sources, isolation transformers, variable inductors and chokes.
For Lord’s Mark, the deal broadens the company’s electrical capabilities beyond its existing renewable energy and smart lighting operations. Management said the specialised transformer technology could support its ambitions in battery energy storage systems, or BESS, while also helping it develop components in-house for its medical device business.
Radio Electric’s customer base includes Siemens Limited, Hitachi Hi-Rel Power Electronics Private Limited, Larsen and Toubro Limited, Bharat Bijlee Limited, Aplab Limited, Underwriters Laboratories India Private Limited and Intellux Electronics Private Limited. The company has about 40 to 50 customers, with business developed through referrals, repeat orders and engineering-led relationships.
The acquired business also has repeat export customers across seven countries, including markets in Europe, the United States, Canada, South Africa, Dubai and the Philippines. Lord’s Mark said it intends to use this base to pursue wider opportunities in Europe, North America, the Middle East and Africa.
A key technical asset is Radio Electric’s double-layer Variac design, developed in 1979-80 and adopted by servo voltage stabiliser manufacturers. The company also has expertise in air-cooled and oil-cooled three-phase Variacs, along with isolated double-wound variable transformers that combine voltage control and electrical isolation.
Lord’s Mark plans to strengthen sales, build dealer networks in industrial clusters, engage more original equipment manufacturers and improve the brand’s digital presence. It also intends to diversify the customer base beyond servo stabiliser manufacturers into laboratories, educational institutions, research centres, utilities and electrical equipment makers.
Potential new products include motorised and digitally metered Variacs, variable AC power sources, test benches, automatic voltage regulation systems and line conditioning solutions. The company is also examining specialised transformer applications in medical equipment, audio products, UPS and inverter systems, Solar installations, energy storage systems, Railways and electronics.
The business will continue to operate from its existing facility under a lease arrangement. Umesh Marathe will remain available as a consultant for one year to assist with the transfer and documentation of design and process knowledge.
The acquisition is consistent with Lord’s Mark’s stated strategy of adding technology-led businesses through partnerships and acquisitions. In the June 2026 quarter, the company reported net sales of Rs 307.68 crore and profit after Tax of Rs 33.18 crore. While sales fell 37.36 per cent sequentially, its operating margin improved to 15.98 per cent from 12.13 per cent in the March quarter.
As of 10:06 AM on October 12, 2026, Lord’s Mark Industries shares were trading at Rs 79.89. The stock was 0.36 per cent below its previous close and remained substantially below its 52-week high of Rs 669.70, while standing above its 52-week low of Rs 63.00.
The immediate execution focus will be on scaling Radio Electric’s available capacity, expanding its industrial sales network and converting its specialised engineering base into larger domestic and export revenue streams.
Disclaimer: The article is for informational purposes only and not investment advice.
