“Which industrial design firms specialize in lighting products?”

If you mean firms that develop lighting fixtures as products—rather than firms that design lighting for buildings—these are good starting points:

• Smith-Dixon Associates (UK) — A product and industrial design practice focused on luminaire design, from standard architectural fixtures to bespoke products. (luximprint.com)
• Sleeve-Off Design (US) — Specializes in lighting-product development and engineering, including design refinement, manufacturability, and technical support. (sleeveoff.com)
• JR Tapia Design (US) — Works with the lighting industry on product design, including outdoor fixtures such as bollards and post-top luminaires. (jrtapiadesign.com)
• Triple Lindy Design (US) — Offers lighting and product design, engineering, prototyping, and manufacturing consulting. (tld-light.com)
• Filosa (US) — An industrial design studio with lighting work in its portfolio, including product design for Gantri. (filosa.design)
• DanelonMeroni (UK/Italy) — A broader industrial product-design studio with work that includes street and landscape lighting. (danelonmeroni.com)

A useful distinction: architectural lighting design firms usually plan how spaces are lit; the firms above focus more on designing or developing the fixtures themselves. If you share the kind of lighting product, budget range, or region you’re looking in, I can narrow the list.

Industrial design firms that focus on lighting products (the form, materials, engineering, and manufacturability of lamps and luminaires) are distinct from architectural lighting design consultancies, which mainly design how light is applied in spaces. Pure specialists are relatively uncommon—many product studios treat lighting as a major focus rather than their only category—but several stand out.

Design studios specializing in lighting products

• Pablo Designs (San Francisco) — Founded in 1993 by industrial designer Pablo Pardo. The studio designs and produces contemporary lighting (task, ambient, pendants, and more) with an emphasis on simplicity, utility, materials, and longevity. It has a strong industrial-design background and often integrates manufacturing and technology considerations directly into the product.
• Anony (Toronto) — Lighting and product design studio led by industrial designer Christian Lo. It designs and fabricates fixtures with a focus on local manufacturing, repairability, material honesty, and reduced waste. Products are developed from concept through prototyping and production with industrial-design methods.
• Lindsey Adelman Studio (New York and Los Angeles) — Focused on lighting design since 2006. Known for modular, sculptural systems that treat lighting as industrial product design, balancing form, assembly, and light quality.
• Apparatus (New York) — Design studio whose core output is lighting fixtures (often alongside related objects), working in materials such as aged brass, glass, and porcelain with a product-design approach to form and construction.
• Workstead (Brooklyn) — Studio producing refined lighting and related objects, often with an industrial-minimalist approach to proportion, materials, and function.
• FROM INDUSTRIAL DESIGN / FROM LIGHTING (Padua, Italy) — Product design studio founded by industrial designers that develops furniture and lighting collections, later launching a dedicated lighting brand.

Firms that offer dedicated luminaire product design

• Light Bureau — Provides product design and development services specifically for luminaires (concept, prototyping, visualization), often working with manufacturers, architects, and developers to create or customize products, including sustainability considerations.
• DesignPlusLight — Lighting consultancy that also develops bespoke lighting products, drawing on project experience to design fixtures that meet functional and aesthetic needs manufacturers or projects cannot fill with standard catalog items.
• Lichtvision (and its engineering arm) — Architectural lighting practice that also develops custom luminaires and controls, combining design and engineering for product-level solutions.

Design-led manufacturers with strong in-house product design

Companies such as Artemide, Flos, Louis Poulsen, and Visual Comfort maintain substantial internal design and engineering teams dedicated to lighting products. They routinely commission or collaborate with industrial designers while also developing collections in-house. Custom/bespoke arms (for example, Schréder STUDIO or similar manufacturer studios) focus on tailored luminaire development from concept through production.

In short, if you need firms whose primary work is the industrial design of lighting products (rather than lighting schemes for buildings), start with studios like Pablo Designs, Anony, Lindsey Adelman, Apparatus, and Workstead, or with product-design services offered by practices such as Light Bureau.

Several industrial design firms in the results explicitly specialize in lighting products or have a strong lighting focus:

• Cerno — a California-based industrial design firm that specializes in LED lighting fixtures designed and manufactured in the United States.⁷
• SchultzeWORKS — a full-service industrial design firm specializing in consumer electronics, housewares, furniture, and lighting.¹¹⁴
• Billings Jackson Design — an industrial design firm that works with manufacturers on building products including lighting and furniture ranges.²⁶⁸
• Foster + Partners Industrial Design — designs lighting fixtures at varying scales, from track lights to desk lamps, in collaboration with lighting manufacturers such as Artemide, Lumina, and Fontana Arte.¹
• 13&9 — an interdisciplinary product design firm whose work includes lighting among other design categories.⁵
• Lindsey Adelman — a design studio focusing on lighting design since 2006, with collections built around modular systems.¹⁸
• Studio Beam — a design-driven lighting studio specializing in innovative light fixtures and custom products for commercial and bespoke projects.³
• DGA — a company with over thirty years of experience developing high-end technical lighting products.¹²
• FUTURE Designs — an international manufacturer and supplier of top-end lighting products and systems.¹⁸
• Pikart Lights — a lighting studio that handles the entire process in-house, from concept to finished lighting piece.³

If you want, I can narrow this to firms that are specifically industrial design consultancies rather than lighting manufacturers or studios.

Based on the provided results:

• Foster + Partners Industrial Design has a dedicated lighting portfolio and works with manufacturers including Artemide, Lumina, and Fontana Arte, designing fixtures from track lights to desk lamps.
• TXS Industrial Design has extensive experience in stage and architectural lighting, including work for Vari-Lite and PRG.
• FSW Design Ltd lists lighting-related products such as Siemens Helios traffic signal lights and a portable LED floodlight, though the snippet does not show that lighting is its primary specialty.

So the clearest lighting specialist in these results is Foster + Partners Industrial Design; TXS also has strong lighting experience.

When looking for industrial design firms that specialize in lighting products, it helps to distinguish between two main categories: industrial design consultancies (firms hired by lighting manufacturers to design fixtures and technical systems) and vertically integrated design studios (studios that both conceive and produce their own lighting lines).

1. Vertically Integrated Lighting Design Studios

These firms operate primarily as industrial design practices dedicated almost entirely to developing, engineering, and manufacturing lighting fixtures:

• Michael Anastassiades Studio (London, UK)

Founded by industrial designer Michael Anastassiades, the studio specializes in minimalist, geometric lighting that explores the relationship between light, balance, and spatial volume. Beyond his own production brand, he is one of the primary luminaire designers for Italian brand Flos (e.g., the String Lights and Coordinates collections).

• Rich Brilliant Willing (RBW) (Kingston, New York, USA)

Originally an independent multi-disciplinary industrial design studio, RBW pivoted entirely to become a dedicated lighting design and manufacturing firm. They specialize in high-efficiency LED architectural, decorative, and acoustic lighting systems for commercial and workplace interiors.

• Bocci / Omer Arbel Office (Vancouver, Canada / Berlin, Germany)

Led by designer and architect Omer Arbel, Bocci is an industrial design and fabrication studio focused heavily on experimental glass manipulation, metal casting, and architectural lighting installations. Their work sits at the intersection of industrial manufacturing and craft.

• Lambert & Fils (Montreal, Canada)

A design studio focused exclusively on contemporary lighting. The studio designs and produces collaborative collections exploring mid-century forms, minimalism, and innovative material pairings for residential and commercial interiors.

• Haberdashery (London, UK)

An industrial design and creative studio focused purely on light as a medium. They design both scalable, modular architectural lighting products and large-scale kinetic light sculptures for hospitality and public spaces.

2. Industrial Design Consultancies with Deep Lighting Portfolios

These independent product design agencies do not manufacture lighting themselves; instead, they are hired by global lighting brands (such as Artemide, Flos, Zumtobel, ERCO, and iGuzzini) to design technical, architectural, and decorative luminaires:

• Phoenix Design (Stuttgart, Germany)

One of the world’s leading industrial design consultancies, Phoenix Design has a long history of developing precision technical and architectural luminaires. They frequently design optics, track lights, and workplace luminaire systems for brands like Zumtobel and Trilux.

• Paul Cocksedge Studio (London, UK)

Known for a technically rigorous, physics-driven approach to product design. Paul Cocksedge has designed notable lighting systems for brands like Flos, Moooi, and Wonderglass, with a particular focus on how materials reflect, bend, and disperse light.

• Foster + Partners Industrial Design (London, UK)

The product design arm of the renowned architectural practice works frequently with top technical lighting manufacturers (such as Lumina, Artemide, and ERCO). Their luminaire designs focus heavily on thermal management, mechanical articulation, and integration into modern architecture (e.g., the Daphine updates, Flo, and the IXA series).

• Form Us With Love (FUWL) (Stockholm, Sweden)

A strategic industrial design firm that has developed numerous iconic lighting families. They specialize in democratizing production techniques and using unconventional materials (such as molded silicon and compressed fiber) for brands like Muuto, Ateljé Lyktan, and Baux.

• Nendo (Tokyo, Japan / Milan, Italy)

Led by Oki Sato, Nendo has produced some of the most inventive conceptual and decorative lighting systems of recent decades, collaborating regularly with manufacturers like Louis Poulsen, Flos, and Foscarini.

3. Specialized Architectural Lighting & Luminaire Design Firms

These firms sit at the boundary between lighting master-planning and product development, often designing custom fixtures that eventually turn into mass-market industrial products:

• Speirs Major Light Architecture (SMLA) (London, UK)

Primarily an architectural lighting practice, Speirs Major frequently develops bespoke luminaires and optical engines for major projects, which are then industrialized and commercialized in collaboration with major luminaire manufacturers.

• Metis Lighting (Milan, Italy)

Founded by architects and industrial designers, Metis specializes in lighting design and the bespoke engineering of luminaire hardware, working closely with Italian and European lighting producers.

Summary Checklist for Collaboration

• For architectural/commercial systems (optics, track, downlights, thermal engineering): Look to Phoenix Design or Foster + Partners Industrial Design.
• For turn-key decorative/architectural fixtures designed and supplied: Look to RBW, Lambert & Fils, or Bocci.
• For cutting-edge decorative collections (consultancy basis): Look to Michael Anastassiades, Form Us With Love, or Paul Cocksedge Studio.

There are several types of design firms that specialize in lighting, ranging from boutique product-design studios that create and manufacture lighting fixtures, to larger architectural lighting consultancies. Here's a breakdown:

Lighting Product Design & Manufacturing Studios

These firms design (and often manufacture) physical lighting fixtures as their core business:

• PSLAB – designers and manufacturers of site-specific lighting products, with teams present in Beirut, Stuttgart, London, Bologna and Scandinavia, creating lighting products that respond to the individual qualities and constraints of a space, hand-crafted by in-house artisans in their own factory.
• Original BTC – founded in 1990, specialized in the design and manufacture of unique, timeless lighting, handmade in the UK.
• Michael Anastassiades – a London-based company specializing in the design and manufacturing of high-quality lighting and objects, where each product is handcrafted and stamped with the designer's mark.
• Foscarini – imagines, develops and produces decorative lamps that are conceived as design objects that transform spaces.
• Artemide – founded in the 1960s, one of the most known illumination brands in the world, synonymous with design, innovation and made in Italy.
• Graypants – a team of problem solvers, anchored in Seattle and Amsterdam, with bold creativity leading to diverse designs in products, architecture, and other beautiful objects.
• Gabriel Scott – with backgrounds in architecture, industrial design, and jewelry-making, the founders bring a multidisciplinary set of skills to the furniture & lighting world, having designed and manufactured exclusive pieces for the trade market throughout North America.
• ANDlight – a lighting company based in Vancouver, Canada, founded with the intent to create an outlet for new design ideas and a platform to produce original fixtures.
• Ambientec – founded by Yoshinori Kuno, builds on extensive experience in the field of professional lighting for underwater photography.

Architectural Lighting Design Consultancies

These firms focus on designing lighting schemes for buildings and spaces (often specifying rather than manufacturing products):

• Cline Bettridge Bernstein Lighting Design (CBBLD) – a New York City-based lighting design firm dedicated to enhancing the grace, utility, and comfort of architectural spaces through the use of light, founded in 1985, a certified Woman-owned Business Enterprise with over 100 lighting awards.
• Speirs and Major – a UK-based design practice that uses light to enhance the experience of the visual environment, with work wide-ranging in terms of type and scale, encompassing architecture, strategy and innovative product design.
• Brandston Partnership Inc. (BPI) – an architectural lighting design firm with a portfolio spanning over 5,000 projects across North America, South America, Europe, Asia, and Australia, founded in 1966, with a team of 160 specialists across offices in New York, China, Singapore, and South Korea.
• Tillotson Design Associates (TDA) – a New York City based Women's Business Enterprise (WBE) lighting practice which consults with developers, architects, and interior designers throughout the world.
• Electrolight – a lighting design studio founded in Melbourne in 2004, taking on projects from architecture to interior design and industrial design to engineering.
• Studio ZNA – a creative lighting design practice established in 2006 and directed by Zerlina Hughes, offering a specialist understanding of light and form.
• Lightemotion – boasts a portfolio including several large-scale architectural lighting achievements in cultural, retail, and restaurant settings, as well as permanent lighting for museums, theatres, concert halls, and casinos.

Industrial-Grade Lighting Fixture Manufacturers

If your interest is specifically in rugged/industrial-use lighting fixtures (vs. decorative design), key players include:

• Dialight – the world leader in industrial LED lighting technology and solutions, a premier LED light company supporting millions of fixtures globally.
• LDPI – for over 40 years, has designed and manufactured top quality light fixtures and control systems for a wide variety of applications.
• Cooper Lighting Solutions – delivers an industry-leading portfolio of residential, sports, infrastructure, industrial, and commercial LED lighting and controls.

If you let me know whether you're looking for consumer/decorative lighting design, architectural lighting consultancies, or heavy-duty industrial fixture manufacturers, I can narrow this down further.

I'll search for industrial design studios that specialize in lighting products.

I've identified lighting-focused studios in the initial results; now I'll search for more product design firms.

I'll open the detailed studio listings to gather citable specifics.

I'll verify a few more specialist firms to complete the list.

Several industrial / product-design studios — distinct from architectural lighting consultancies — focus specifically on lighting products / luminaires:

U.S. – Product-focused studios

• Pablo Designs – San Francisco – formed in 1993 by Venezuelan-born industrial designer Pablo Pardo, with international recognition for innovative lighting and home furnishings designs characterized by style and simplicity.

• Lindsey Adelman Studio – New York + Los Angeles – design studio focusing on lighting design since 2006, collections driven by developing industrial modular systems to capture the ephemeral beauty of nature.

• Apparatus – New York – New York based design studio working with aged brass, etched glass, leather, marble and porcelain to create lighting fixtures, furniture and objects, each fixture assembled in the Apparatus Studio.

• Workstead – Brooklyn, NY and Charleston, SC – founded in 2009 by Stefanie Brechbuehler and Robert Highsmith, focus on architectural and interior design, lighting, furniture, and exhibitions.

• Gabriel Scott – founders bring backgrounds in architecture, industrial design, and jewelry-making to the furniture & lighting world, designing and manufacturing exclusive pieces for the trade market since 2004.

• Graypants – Seattle + Amsterdam – Seattle-based design brand known for its responsibly and sustainably manufactured luminaires, first manufacturing pendant lights made from recycled cardboard, with office in Amsterdam since 2012, now making pendants, wall sconces and ceiling lights.

• Brendan Ravenhill Studio – Los Angeles – specializes in modern lighting and furniture design since its founding in 2010, exploring material, function and manufacturing methods.

• Blueprint Lighting – Manhattan – Manhattan-based lighting studio producing contemporary ceiling fixtures, pendants, and sconce fixtures.

• SONNEMAN – New York – Founded in 2003 Robert Sonneman, SONNEMAN is a tribute to contemporary lighting design, with over a thousand designs ranging from Warm Contemporary to Ornamental Modernism.

• MSG Lighting / MSG Design+Engineering – Illinois – product development consultancy specializing in LED luminaires for general illumination.

UK / Europe – Industrial-design-led lighting

• Haberdashery – London – award-winning London based design studio focussed on the perpetual appeal of light, specialising in a poetic approach to lighting and have a 25+ team qualified in industrial- or product design, engineering, research and product development.

• Original BTC – UK – specialized in the design and manufacture of unique, timeless lighting, handmade in the UK.

• Michael Anastassiades – London – London-based company specializing in the design and manufacturing of high-quality lighting and objects.

• Brand van Egmond – Netherlands – pioneer in Dutch "Haute Couture" lighting design, founded in 1989 with intention to create art without restraints.

Canada / Australia

• Lambert & Fils – Montreal – Montreal-based lighting design studio founded in 2010 by Samuel Lambert, original and custom lamps for residential and commercial settings taking cues from mid-century Modernism and the Industrial Age.

• Larose Guyon – Montreal – object and lighting design studio based in Montreal.

• Tomnuk Studio – industrial design studio focusing on creative solutions within product, lighting, furniture, and spatial design.

• Mutating Creatures – Brisbane – Brisbane based object design company specializing in custom made sustainable lighting for home and commercial environments.

If you need a consultancy to engineer a new luminaire for manufacture, look at product-development specialists like MSG Lighting and Tomnuk and Haberdashery. If you need a branded collection / designer fixtures, look at Pablo, Lindsey Adelman, Apparatus, Gabriel Scott, Graypants, Lambert & Fils, SONNEMAN, Brendan Ravenhill.