| Name | Code | Last | Cur | M. cap. | Industry |
|---|
| YouGov PLC | YOU XLON | 314.50 | GBP | 494 | Marketing & Advertising |
| Young & Co's Brewery PLC | YNGN XLON | 622.00 | GBP | 698 | Restaurants |
| Young & Co's Brewery PLC | YNGA XLON | 973.00 | GBP | 698 | Restaurants |
| Young & Co's Brewery PLC | YNGa XLON | 1,535.00 | GBP | 698 | Restaurants |
| Yu Group PLC | YU. XLON | 207.50 | GBP | 14 | Multiline Utilities |
| Zaim Credit Systems PLC | ZAIM XLON | 0.05 | GBP | 0 | Consumer Lending |
| Zambeef Products PLC | ZAM XLON | 3.90 | GBP | 15 | Food Retail & Distribution |
| Zanaga Iron Ore Company Ltd | ZIOC XLON | 9.20 | GBP | 102 | Iron & Steel |
| Zegona Communications PLC | ZEG XLON | 728.00 | GBP | 7,418 | Integrated Telecommunications Services |
| Zenith Energy Ltd | ZEN XLON | 14.50 | GBP | 61 | Oil and Gas Exploration & Production |
| Zenova Group PLC | ZED XLON | 0.23 | GBP | 0 | Business Support Supplies |
| Zephyr Energy PLC | ZPHR XLON | 3.70 | GBP | 86 | Oil and Gas Exploration & Production |
| Zhejiang Yongtai Technology Co Ltd | YTT XLON | 5.70 | GBP | 1,745 | Commodity Chemicals |
| Zinc Media Group PLC | ZIN XLON | 70.00 | GBP | 23 | Entertainment Production |
| Zinnwald Lithium PLC | ZNWD XLON | 5.50 | GBP | 35 | Agricultural Chemicals |
| Zoo Digital Group PLC | ZOO XLON | 13.15 | GBP | 17 | Software |
| Zotefoams PLC | ZTF XLON | 307.00 | GBP | 202 | Commodity Chemicals |
| Zytronic PLC | ZYT XLON | 44.20 | GBP | 6 | Electrical Equipment |