Ninety Degree Stone Pvt. Ltd.

What Ninety Degree Stone Pvt. Ltd. does

Ninety Degree Stone Pvt. Ltd. is an Indian natural stone manufacturer and direct seller operating as a division of R.K. Group (also known as R.K. Marble Group), a conglomerate established in 1989 in the natural stone sector. Headquartered in Kishangarh, Rajasthan — referred to in company materials as the marble capital of India — the company produces and distributes premium natural stones including granite, marble, quartzite, phyllite, and quartz, organized across 12 curated collections (AMANI, CANVAS, CLASSIC, DESIGN, EXOTIC, LEAN, LUXURY, MASSO, NATURAL QUARTZ, OCEAN BLACK, PRECIOUS STONE, TEXTURE). The company owns international quarry assets, most notably a 500m-deep mine in Luc Yen, Vietnam (its largest operation), and serves architects, interior designers, real estate developers, builders, and hoteliers through a quote-based direct sales model with no public list pricing.

The company's core technical capability centers on advanced stone processing. It claims to be the only producer globally of 6mm-thick granite and marble slabs for lightweight applications, supported by Breton and Omega machinery sourced from international manufacturers and a portfolio of 370 distinct stone varieties processed via 120 manufacturing processes and 20 proprietary surface techniques (including Bamboo Silken, Giano, Hydro, Rock Face, Rustic, and Stalac finishes). Its flagship product, Ocean Black Phyllite, is sourced from an exclusive Indian phyllite quarry characterized by a 500–800 year geological formation period.

Commercially, Ninety Degree Stone pursues an event-driven B2B go-to-market anchored on international trade shows — Coverings (USA), Marmomac (Italy), Xiamen International Stone Fair (China), and Acetech India — supplemented by a website-driven catalogue and quote-request workflow, plus Instagram and Facebook brand presence. Leadership consists of Director Vineet Patni (founder and 3rd-generation member of the Patni family that controls R.K. Group) and Director Vinay Gangwal (20+ years in natural stone). The company is privately held, with no external funding rounds disclosed and no revenue, headcount, or certification data publicly available in the input set.

Name

Ninety Degree Stone Pvt. Ltd.

Legal name

Ninety Degree Stone

Website

https://ninetydegree.com

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

11–50 employees

Short description

Ninety Degree Stone Pvt. Ltd. is an Indian natural stone manufacturer, a unit of R.K. Group. It sells granite, marble, quartzite, phyllite, and quartz via 12 collections and is the sole global producer of 6mm thin slabs, serving architects, developers, and hoteliers via trade shows and direct sales.

Ownership category

akta.pro rank

Product category

Natural Stone Products

NAICS

Cut Stone and Stone Product Manufacturing (327991), Dimension Stone Mining and Quarrying (212311), Stone Mining and Quarrying (21231)

SIC

Cut Stone & Stone Products (3281), Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400)

akta.pro primary industry

Granite Quarrying & Dimension Stone Fabrication (IMAKAHAD)

akta.pro secondary industries

Marble Quarrying & Dimension Stone Fabrication (IMAKAHAE), Other Dimension Stone (Slate, Sandstone, Quartzite, Travertine) Quarrying & Fabrication (IMAKAHAF), Natural Stone Floor Repair, Polishing & Sealing (Marble/Travertine/Granite) (HSAGAFAG)

Keywords

• Natural stone manufacturing
• Granite slabs supplier
• Marble slabs exporter
• Quartzite and phyllite quarries
• Thin stone surface finishes

Headquarters

HQ city

Kishangarh

HQ country

India

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Personnel, Marketing or Sales, Infrastructure, Technology or R&D

Revenue model

1. Natural Stone Products: Direct sales of exotic granite, marble, quartzite, phyllite, and quartz products to customers. Products sold in various finishes and textures for interior design and construction applications.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Ninety Degree Stone mines, processes, and sells premium natural stone slabs and surfaces — granite, marble, quartzite, phyllite, and quartz — across 370 distinct varieties and 20 specialized finishes. The company runs its own quarries (including in Vietnam) and processing facilities in Kishangarh, India, and is the only producer worldwide of 6mm-thick granite and marble slabs for lightweight architectural and interior applications.

Product overview

Ninety Degree Stone is a natural stone company specializing in granite, marble, quartzite, phyllite, and quartz products. The company operates as a unit of the R.K. Group (established 1989) and offers its products through multiple curated collections including AMANI, CANVAS, CLASSIC, DESIGN, EXOTIC, LEAN, LUXURY, MASSO, NATURAL QUARTZ, OCEAN BLACK, PRECIOUS STONE, and TEXTURE. The company is notable for producing ultra-thin 6mm granite and marble slabs and offers various surface finishes including Polished, Rustic, Rock Face, Hydro, Giano, and Silken through 120 manufacturing processes across 370 stone varieties.

Differentiator

Problem solved

Functional benefit

Brands

• Ocean Black: Premium and luxurious stone, the company's bestseller. Geologically evolves over 500-800 years, mined from India's exclusive Phyllite quarry with high compaction qualities similar to high-grade metamorphic stone.

Products and services

• Granite Natural granite stones (including Fantasy Black, Alaska White, Vogue Brown) available in multiple finishes such as Bamboo Soft, Rustic, Polished, and Rock Face for interior and architectural applications.
• Marble Imported and domestic marble stones (Grey Bardiglio, Stalac, Deep Sea, Monte Cresto, Venatino) available in multiple proprietary finishes for residential and commercial interiors.
• Quartzite Natural quartzite stones sourced from international mines, marketed for durability and aesthetic appeal in architectural surfaces.
• Phyllite Premium phyllite stone including the company's bestseller Ocean Black, mined from India's exclusive Phyllite quarry, known for high compaction qualities similar to high-grade metamorphic stone.
• Quartz Engineered quartz products (Ice White Crystal, Hematite Crystal, Emerald Masso with Backlit) available in 10MM and 20MM thickness options for interior surfaces.
• Natural Stone Collections (AMANI, CANVAS, CLASSIC, DESIGN, EXOTIC, LEAN, LUXURY, MASSO, NATURAL QUARTZ, OCEAN BLACK, PRECIOUS STONE, TEXTURE) Twelve themed curated collections grouping the company's 370 stone varieties into design categories such as Exotic, Luxury, Classic, Design, Ocean Black, Textured, and Precious Stone for designers and architects.

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Pokarna Limited: Indian processor and exporter of natural granite and engineered stone surfaces serving global markets. Comparable mid-sized Indian stone manufacturer with similar export-driven model and multi-product portfolio spanning granite and quartz.
• R.K. Marble (R.K. Group parent division): Sibling division under the same R.K. Group parent, focused on marble quarrying and large-format slabs. Direct competitor in Indian natural stone with shared family ownership, overlapping quarry assets, and similar export focus through international exhibitions.
• ARO Granite Industries: Listed Indian manufacturer and exporter of granite slabs and tiles with own processing facilities. Closely comparable in product (granite slabs), customer base (international B2B), and distribution model (direct export via trade shows).
• Antolini Luigi & C. S.p.A. Italian premium natural-stone processor offering curated marble, granite, onyx, and quartzite collections with proprietary finishes (similar curated-collection strategy). Direct competitor in the high-end architectural stone category globally, with comparable focus on unique textures and designer collections.
• Tab India Granites: South India-based granite processor and exporter serving international B2B markets with similar finishing capability and curated collections. Comparable mid-scale Indian player competing in the same trade-show channels (Coverings, Marmomac).

Broad incumbents

• M S International (MSI): Large US-based distributor and wholesaler of natural stone (granite, marble, quartzite) and engineered surfaces. Comparable in supplying architects, designers, and developers across residential/commercial projects, but operates as a distributor rather than a quarry/processor.
• Asian Granito India Ltd. Larger Indian listed tile and stone-surface manufacturer with broader product range (tiles, marble, quartz, engineered stone). Overlaps in natural stone slabs but as a multi-category incumbent with significantly larger scale and Indian stock-market access.
• Levantina Group: Spanish multinational and one of the world's largest natural stone groups with own quarries, processing plants, and global distribution. Overlaps with Ninety Degree in premium marble/granite slabs for architectural projects, but at a substantially larger scale.

Emerging players

• Caesarstone Ltd. Global engineered-quartz surface leader pushing into natural-stone-like aesthetics. Not a direct natural-stone peer but a structural competitor in kitchen/bathroom surfacing where Ninety Degree also sells, and increasingly relevant as Caesarstone expands ultra-thin and marble-look offerings.
• Cosentino Group: Spanish multinational behind Silestone and Dekton engineered surfaces, now expanding into natural-stone offerings. Competitor in the surfacing market — particularly relevant given Cosentino's push into ultra-thin formats and natural-stone-adjacent premium surfaces that overlap with Ninety Degree's 6mm positioning.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/ninetydegreestone
• Instagraminstagram.com/ninetydegreestone
• LinkedInlinkedin.com/company/ninetydegreestone

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Ninety Degree Stone Pvt. Ltd.