Local Solutions
Global Reach
Our Vision
Our vision is to become a versatile vertically integrated manufacturing company, where Safety is paramount, Quality is a given, Technology is cutting edge, Delivery performance is extra-ordinary, Customer Focus is undiluted, and Pricing is optimal. Our single-minded objective is to strive tirelessly to add value to our customers and to pursue the path of excellence.
Our Mission
Sienna’s mission is to be a socially and environmentally responsible house of business generating solutions to meet the world’s needs. We are committed to be a learning organization, responding to the changing needs of time and tide. Our philosophy is entrenched in the stakeholder philosophy of management, that prescribes the upliftment of all stakeholders as we embark on the journey of enterprise.

About
Sienna
Sienna is a vertical manufacturing company with a product spectrum that spans PCBA Design & Assembly, Wire Harnesses, Magnetics, Electro-Mechanical Integration (EMI), Sheet Metal Fabrication, Machining, Injection Moulded Plastics, complete system integration & product testing.
Our
Presence
Sienna’s people are its greatest asset. With over 2000 employees spread across geographic locations, the company draws on talents drawn from all the disciplines of enterprise, namely Engineering, Manufacturing, Planning, Quality, Supply Chain Management, Logistics, Business Development and Finance.

Our
Presence
Sienna’s people are its greatest asset. With over 2000 employees spread across geographic locations, the company draws on talents drawn from all the disciplines of enterprise, namely Engineering, Manufacturing, Planning, Quality, Supply Chain Management, Logistics, Business Development and Finance.

Supply
Chain
Sienna collaborates closely with its supply chain partners in a spirit of mutual evolution. By facilitating cross fertilization of ideas and instilling a sense of values across the supply chain, Sienna serves to lift the entire eco-system.
Program
Management
Sienna programme management focus is to ensure ease of doing business for the customer. With various internal divisions to support a product build, customer has to work only with a program manager to co-ordinate the progress of various subassemblies. Regular updates and tracking on time delivery are the key program management functions
Quality
Our quality system is based on the following foundations – Customer focus, Leadership, People Involvement, Process & System approach, Continual improvement, Factual approach to decision making and Mutually rewarding supplier relationship.
Certifications
Awards
Various divisions at Sienna have bagged international awards over the years from Industry forums. Also, many international customers have awarded BEST SUPPLIER AWARDS to Sienna Corporation which is a testimony of customer focus and establishing a win-win relationship.

ATLANTA, GA AND FREMONT CA
LOCATIONS
ISO 9001: 2015
SIENNA CORPORATION

ISO 13485
SIENNA ATLANTA

NADCAP
ATS (Metals)
A6

ISO 9001: 2015
AVALON
All facilities
B7,B8

IATF 16949
AVALON: 2016
PCB & Cables
B7,B8

AS9100
ATS
(Metals, Plastics, Cables)
A6,A7, B7

Management System
ISO 9001:2015
SIENNA ECAD