JM
Jubin Mahendrakumar Jain
About Jubin Mahendrakumar Jain
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Jubin Mahendrakumar Jain is a Whole-Time Director at Rational Engineers Limited (since 2016), Director at Gemini Instratech Limited (since 2025) and Director at Skylink Aero Private Limited (since 2024), and holds 2 more current directorships. The companies operate in Manufacturing, Energy and Power and Information Technology. The 3 current companies with reported revenue have a combined latest revenue of ₹928 Cr; the largest is Rational Engineers Limited at ₹893 Cr (FY 2025).
Current companies
| Company | Designation | Appointment | Founded | Revenue | Status |
|---|---|---|---|---|---|
 Rational Engineers Limited U31200MH1989PLC050809 | Whole-Time Director | 23 Jun 2016 | 1989 | ₹893 Cr (FY 2025) | Active |
 Gemini Instratech Limited U40105MH1991PLC167813 | Director | 18 Jul 2025 | 1991 | ₹34.65 Cr (FY 2025) | Active |
| Skylink Aero Private Limited U32109MH2021PTC368685 | Director | 01 Jan 2024 | 2021 | ₹5 Lakh (FY 2025) | Active |
| Avioncrest Constructions Llp AAO-0359 | Designated Partner | 18 Aug 2025 | 2019 | Active | |
| Mahendra Jain Endeavours Llp ABB-2941 | Designated Partner | 31 May 2022 | 2022 | Active |
Board colleagues of Jubin Mahendrakumar Jain
| Name | DIN | Company | Designation |
|---|---|---|---|
| Ajit Eledath Venugopalan | 09439069 | Rational Engineers Limited | Director |
| Bipin Jayantibhai Joshi | 11257375 | Rational Engineers Limited | Director |
| Himanshu Bipin Unadkat | Rational Engineers Limited | Company Secretary | |
| Kajol Mahendrakumar Jain | 08014510 | Rational Engineers Limited | Director |
| Kajol Mahendrakumar Jain | Rational Engineers Limited | Cfo | |
| Mahendrakumar Khyalilal Jain | 00416102 | Rational Engineers Limited , Gemini Instratech Limited and 3 more | Managing Director |
| Nilesh Bhogilal Gandhi | 03570656 | Rational Engineers Limited | Director |
| Nilesh Pramod Vedak | 07874351 | Rational Engineers Limited | Director |
| Venkateswaran Ramanan | 10108664 | Rational Engineers Limited | Nominee Director |
| Pandit Sitaram Birari | 02078806 | Gemini Instratech Limited | Whole-Time Director |
| Preet Pagariya | 09706015 | Gemini Instratech Limited , Skylink Aero Private Limited | Director |
Directorship timeline
Open interactive timeline →Shareholding and investment profile for Jubin Mahendrakumar Jain
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Frequently Asked Questions about Jubin Mahendrakumar Jain
Jubin Mahendrakumar Jain currently holds 5 directorships: Rational Engineers Limited (Whole-Time Director, since 23 Jun 2016, revenue ₹893 Cr (FY 2025)); Gemini Instratech Limited (Director, since 18 Jul 2025, revenue ₹34.65 Cr (FY 2025)); Skylink Aero Private Limited (Director, since 01 Jan 2024, revenue ₹5 Lakh (FY 2025)); Avioncrest Constructions Llp (Designated Partner, since 18 Aug 2025); Mahendra Jain Endeavours Llp (Designated Partner, since 31 May 2022).
Jubin Mahendrakumar Jain was first appointed on 23 Jun 2016 as Whole-Time Director at Rational Engineers Limited. The most recent appointment on record is 18 Aug 2025 at Avioncrest Constructions Llp.
The 3 current companies of Jubin Mahendrakumar Jain that report revenue have a combined latest revenue of ₹928 Cr: Rational Engineers Limited ₹893 Cr (FY 2025); Gemini Instratech Limited ₹34.65 Cr (FY 2025); Skylink Aero Private Limited ₹5 Lakh (FY 2025).
The current boards of Jubin Mahendrakumar Jain's companies include Ajit Eledath Venugopalan (Rational Engineers Limited), Bipin Jayantibhai Joshi (Rational Engineers Limited), Himanshu Bipin Unadkat (Rational Engineers Limited), Kajol Mahendrakumar Jain (Rational Engineers Limited), Kajol Mahendrakumar Jain (Rational Engineers Limited), Mahendrakumar Khyalilal Jain (Rational Engineers Limited), among others.