 R.E.A. Holdings PLC | RE. | GB0002349065 | |
 R8 Capital Investments plc | MODE | GB00BKX8NT01 | |
| Radian Capital plcBond | 43QL | XS0752468032 | |
 Rainbow Rare Earths Limited | RBW | GG00BD59ZW98 | |
 Ramsdens Holdings PLC | RFX | GB00BDR6V192 | |
 Rank Group PLC | RNK | GB00B1L5QH97 | |
 Raspberry PI Holdings PLC | RPI | GB00BS3DYQ52 | |
 Rathbones Group PLC | RAT | GB0002148343 | |
 RC Fornax PLC | RCFX | GB00BTTQ2F04 | |
 RC365 Holding PLC | RCGH | GB00BMG8BL95 | |
| Reabold Resources PLC | RBD | GB00BVK55Z16 | |
 Reach PLC | RCH | GB0009039941 | |
 React Group PLC | REAT | GB00BPCTRB97 | |
| Real Estate Credit Investments Limited | RECI | GB00B0HW5366 | |
 Real Estate Investors PLC | RLE | GB00B45XLP34 | |
 REC LimitedBond | 34JI | XS1791439257 | |
 Reckitt Benckiser Group PLC | RKT | GB00BSZBP530 | |
| Record PLC | REC | GB00B28ZPS36 | |
| Red Rock Resources PLC | RRR | GB00BYWKBV38 | |
 Redcentric PLC | RCN | GB00B7TW1V39 | |
| Regional REIT Limited | RGL | GG00BSY2LD72 | |
| RELX Finance B.V.Bond | BW73 | XS2779010300 | |
| Relx PLC | REL | GB00B2B0DG97 | |
 Renalytix PLC | RENX | GB00BYWL4Y04 | |
 Renew Holdings PLC | RNWH | GB0005359004 | |
 Renishaw PLC | RSW | GB0007323586 | |
 Renold PLC | RNO | GB0007325078 | |
 Rentguarantor Holdings PLC | RGG | GB00BSVJ8W91 | |
| Rentokil Initial PLC | RTO | GB00B082RF11 | |
| Residential Secure Income PLC | RESI | GB00BYSX1508 | |
 Resolute Mining Limited | RSG | AU000000RSG6 | |
 Restore PLC | RST | GB00B5NR1S72 | |
 Revolution Beauty Group PLC | REVB | GB00BP7L1T61 | |
 RHI Magnesita N.V. | RHIM | NL0012650360 | |
| RHP Finance PLCBond | 62ZW | XS1181693364 | |
 Ricardo PLC | RCDO | GB0007370074 | |
 Richmond Hill Resources PLC | RHR | GB00BNTBWF32 | |
 Ricoh Co LtdRICOH ORD SHS | RICO | JP3973400009 | |
 Rift Helium PLC | RIFT | GB00BVRY9595 | |
 Rightmove PLC | RMV | GB00BGDT3G23 | |
| Rights and Issues Investment Trust PLC | RIII | GB0007392078 | |
 Rio Tinto PLC | RIO | GB0007188757 | |
 RIT Capital Partners PLC | RCP | GB0007366395 | |
 River Global PLC | RVRG | GB00BTDR2R10 | |
| River UK Micro Cap LimitedRED ORD NPV | RMMC | GG00BNDMJP11 | |
 Riverstone Credit Opportunities Income PLC | RCOI | GB00BRBWLX34 | |
 Riverstone Energy Limited | RSE | GG00BWZ6KH33 | |
 RM Infrastructure Income PLC | RMII | GB00BYMTBG55 | |
| RM PLC | RM. | GB00BJT0FF39 | |
 Roadside Real Estate PLC | ROAD | GB00BL6TZZ70 | |
| Robert Walters PLC | RWA | GB0008475088 | |
 Robinson PLC | RBN | GB00B00K4418 | |
 Rockfire Resources PLC | ROCK | GB00B42TN250 | |
 Rockhopper Exploration PLC | RKH | GB00B0FVQX23 | |
 Rockpool Acquisitions PLC | ROC | GB00BF2MWC40 | |
 Rockwood Strategic PLC | RKW | GB00BRRD5L66 | |
 Roebuck Food Group Public Limited CompanyOther | RFG | IE0006447985 | |
 Rolls Royce Holdings PLC | RR. | GB00B63H8491 | |
| Rolls-Royce plcBond | 43AP | XS1819574929 | |
| Rome Resources PLC | RMR | GB00BYY0JQ23 | |
 ROSEBANK INDUSTRIES PLC | ROSE | JE00BSBJ5M88 | |
| Ross Group PLC | RGP | GB0002192606 | |
| Rosslyn Data Technologies PLC | RDT | GB00BMV2DB09 | |
 Rothschild & Co Continuation FinBond | 68WN | XS0197703118 | |
 Rotork PLC | ROR | GB00BVFNZH21 | |
 Royal Bank of CanadaBond | 17TZ | XS0901363993 | |
 RS Group PLC | RS1 | GB0003096442 | |
 RTC Group PLC | RTC | GB0002920121 | |
 RTW Biotech Opportunities Ltd | RTW | GG00BKTRRM22 | |
 RUA Life Sciences PLC | RUA | GB0033360586 | |
 Ruffer Investment Company LimitedRED PTG PREF SHS 0.01P | RICA | GB00B018CS46 | |
 RWS Holdings PLC | RWS | GB00BVFCZV34 | |
 Ryanair Holdings PLC | 0RYA | IE00BYTBXV33 | |
