![Ancuta Guina](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Net worth: 973 874 $ as of 31/05/2026
Ancuta Guina currently works at RefleKron Oy, as Director from 2018 and Modulight Oyj, as Chief Financial Officer from 2024.
Ms. Guina received her Masters Business Admin degree from Henley Business School Ltd. and graduate degree from Tampere University of Technology.
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
MODULIGHT OYJ 1.57% | 31/12/2025 | 6,70,320 ( 1.57% ) | 973 874 $ | 31/05/2026 |
| Companies | Position | Start |
|---|---|---|
| MODULIGHT OYJ | Director of Finance/CFO | 01/01/2021 |
RefleKron Oy
 RefleKron Oy RefleKron Oy specializes in customized semiconductor saturable absorber mirrors (SESAMs) for ultrafast laser systems, focusing on mode-locking and Q-switching applications across a wavelength range from approximately 0.6 µm to 3.5 µm. The private company is based in Tampere, Finland. The Finnish company utilizes molecular beam epitaxy with materials such as GaAs, InP, and GaSb to tailor SESAM properties, including nonlinear absorption, saturation fluence, and relaxation time, for optimized laser performance and repeatability in industrial volume production. RefleKron supports a full product qualification cycle to ensure stable supply for large-scale manufacturing and offers consulting services for customized SESAM solutions. The company also engineers absorber defect density to control absorption recovery dynamics, enabling adjustable relaxation times from sub-picoseconds to nanoseconds. | Director/Board Member | 01/01/2018 |
Active
Inactive
Listed companies
Private companies
| Private companies | 4 |
|---|---|
Henley Business School Ltd.
 Henley Business School Ltd. Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Tampere University of Technology
 Tampere University of Technology Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Modulight Oy
 Modulight Oy SemiconductorsElectronic Technology Manufactures and markets laser products | Electronic Technology |
RefleKron Oy
RefleKron Oy RefleKron Oy specializes in customized semiconductor saturable absorber mirrors (SESAMs) for ultrafast laser systems, focusing on mode-locking and Q-switching applications across a wavelength range from approximately 0.6 µm to 3.5 µm. The private company is based in Tampere, Finland. The Finnish company utilizes molecular beam epitaxy with materials such as GaAs, InP, and GaSb to tailor SESAM properties, including nonlinear absorption, saturation fluence, and relaxation time, for optimized laser performance and repeatability in industrial volume production. RefleKron supports a full product qualification cycle to ensure stable supply for large-scale manufacturing and offers consulting services for customized SESAM solutions. The company also engineers absorber defect density to control absorption recovery dynamics, enabling adjustable relaxation times from sub-picoseconds to nanoseconds. |
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