diff --git a/.github/sponsors/Klaviyo.svg b/.github/sponsors/Klaviyo.svg
new file mode 100644
index 00000000..67125290
--- /dev/null
+++ b/.github/sponsors/Klaviyo.svg
@@ -0,0 +1,6 @@
+<svg width="8782" height="2582" viewBox="0 0 8782 2582" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M4750.55 344.437C4750.31 298.348 4768.14 254 4800.22 220.902C4832.3 187.805 4876.06 168.592 4922.14 167.382C4968.93 167.928 5013.64 186.757 5046.73 219.844C5079.82 252.931 5098.65 297.649 5099.19 344.437C5098.09 390.547 5078.91 434.376 5045.79 466.475C5012.67 498.573 4968.26 516.369 4922.14 516.025C4876.77 515.586 4833.38 497.368 4801.29 465.283C4769.21 433.199 4750.99 389.809 4750.55 344.437V344.437ZM6124.09 717.893C6208.2 717.893 6262.04 764.575 6262.04 866.35C6252.54 965.648 6228.01 1062.93 6189.28 1154.85C6121.57 1336.95 6051.34 1545.13 5975.64 1781.91C5941.99 1667.51 5876.8 1487.51 5796.06 1277.24L5725.82 1084.62C5693.35 1006.77 5673.21 924.33 5666.1 840.275C5663.9 824.814 5665 809.063 5669.32 794.057C5673.65 779.05 5681.1 765.13 5691.19 753.211C5701.28 741.293 5713.78 731.646 5727.87 724.906C5741.96 718.166 5757.31 714.486 5772.93 714.108V680.043H5184.14V714.108C5264.47 721.678 5329.66 798.219 5415.45 1026.16L5790.17 2017.42C5814.86 2073.62 5826.3 2134.75 5823.61 2196.08C5820.91 2257.4 5804.14 2317.29 5774.61 2371.11C5732.55 2464.89 5670.31 2511.57 5597.55 2511.57C5506.71 2511.57 5459.61 2472.46 5459.61 2392.14C5459.61 2360.59 5519.75 2298.35 5519.75 2238.63C5519.75 2154.52 5454.56 2116.25 5381.81 2116.25C5358.74 2115.45 5335.76 2119.55 5314.4 2128.29C5293.03 2137.03 5273.76 2150.2 5257.86 2166.93C5241.97 2183.67 5229.8 2203.58 5222.16 2225.37C5214.53 2247.15 5211.61 2270.31 5213.58 2293.3C5216.98 2372.85 5251.69 2447.82 5310.15 2501.87C5368.61 2555.92 5446.07 2584.66 5525.64 2581.81C5564.4 2583.14 5603.04 2576.81 5639.34 2563.17C5675.64 2549.53 5708.89 2528.85 5737.18 2502.32C5768.3 2479.19 5807.41 2398.44 5828.44 2359.33C5844.1 2328.36 5857.19 2296.15 5867.55 2263.02C5885.64 2218.87 5896.15 2182.7 5903.72 2159.15C5911.29 2135.59 5927.27 2096.48 5945.78 2036.76L5987.83 1904.29C6099.7 1555.64 6206.52 1251.16 6307.88 993.779C6367.6 845.322 6445.82 757.005 6484.93 738.921C6505.95 727.497 6528.67 719.545 6552.22 715.37V681.304H6124.09V717.893ZM2016.92 1948.45C1941.22 1935.41 1876.45 1867.7 1876.45 1724.71V0.420548L1447.49 93.3639V129.952C1520.24 121.962 1593.42 187.148 1593.42 325.091V1724.71C1593.42 1860.13 1520.24 1937.93 1447.49 1948.45L1426.88 1950.97C1389.66 1953.63 1352.37 1946.99 1318.37 1931.62C1256.47 1903.18 1205.1 1855.94 1171.6 1796.62L972.675 1477C930.814 1410.08 868.411 1358.51 794.8 1330C721.189 1301.5 640.328 1297.59 564.313 1318.87L788.05 1071.58C956.273 884.434 1113.56 764.575 1261.6 715.37V681.304H770.807V715.37C896.974 764.575 890.666 873.92 744.732 1045.51L430.155 1412.66V0L0.764648 93.3639V129.952C73.5212 129.952 146.698 202.709 146.698 330.138V1724.71C146.698 1878.21 76.4651 1937.93 0.764648 1948.45V1982.09H570.621V1948.45C476.837 1935.41 430.155 1864.33 430.155 1724.71V1467.33L552.537 1334.01L849.031 1820.6C919.264 1937.51 984.03 1984.19 1088.33 1984.19H2078.32V1957.7C2078.32 1957.7 2049.72 1953.91 2016.92 1948.45ZM3337.47 1952.23V1986.3C3337.47 1986.3 3045.61 2091.02 2957.29 1913.12C2933.75 1866.18 2920.83 1814.63 2919.44 1762.14C2879.32 1839.72 2818.44 1904.63 2743.59 1949.63C2668.73 1994.63 2582.85 2017.95 2495.52 2017C2285.24 2017 2133.84 1918.17 2133.84 1702C2133.71 1647.25 2150.13 1593.75 2180.94 1548.5C2243.18 1455.13 2315.94 1405.51 2451.36 1353.36C2519.07 1327.7 2577.53 1309.2 2619.58 1296.16C2661.64 1283.12 2720.94 1270.09 2787.8 1257.47L2919.44 1225.93V1069.9C2919.44 809.995 2807.57 691.398 2651.54 691.398C2529.16 691.398 2458.93 772.145 2458.93 865.929C2458.93 917.658 2495.52 992.097 2495.52 1048.03C2495.52 1120.79 2430.33 1174.2 2339.49 1174.2C2248.65 1174.2 2204.49 1103.97 2204.49 1010.18C2204.49 916.396 2251.17 830.602 2347.48 757.846C2438.92 686.915 2551.38 648.444 2667.1 648.501C3032.57 648.501 3191.96 821.771 3197.85 1202.38V1775.18V1783.17C3199.11 1820.6 3209.62 1972.84 3337.47 1952.23ZM2919.44 1265.04C2903.88 1273.03 2867.71 1286.07 2807.57 1307.09L2688.13 1351.25C2657.85 1365.55 2635.98 1377.33 2591.82 1400.88C2557.82 1417.09 2526.93 1439.15 2500.56 1466.07C2456.54 1515.71 2430.86 1578.94 2427.81 1645.22C2427.81 1798.73 2511.92 1882 2638.09 1882C2707.53 1879.83 2773.97 1853.16 2825.65 1806.72C2855.91 1782.31 2880.12 1751.23 2896.38 1715.93C2912.65 1680.62 2920.54 1642.03 2919.44 1603.17V1265.04ZM7736.93 1334.01C7738.14 1423.73 7721.51 1512.8 7688.01 1596.04C7654.51 1679.28 7604.81 1755.04 7541.79 1818.91C7482 1882.25 7409.91 1932.71 7329.92 1967.19C7249.94 2001.68 7163.76 2019.47 7076.66 2019.47C6989.56 2019.47 6903.37 2001.68 6823.39 1967.19C6743.41 1932.71 6671.31 1882.25 6611.52 1818.91C6485.64 1689.13 6416.24 1514.8 6418.48 1334.01C6417.14 1244.89 6433.51 1156.4 6466.65 1073.66C6499.78 990.927 6549.03 915.599 6611.52 852.051C6670.89 787.997 6742.85 736.895 6822.89 701.948C6902.93 667.002 6989.32 648.963 7076.66 648.963C7163.99 648.963 7250.39 667.002 7330.43 701.948C7410.47 736.895 7482.43 787.997 7541.79 852.051C7604.99 915.185 7654.84 990.392 7688.36 1073.19C7721.89 1155.99 7738.41 1244.69 7736.93 1334.01V1334.01ZM7311.75 871.397C7260.02 770.463 7192.31 711.584 7113.25 695.603C6952.17 663.22 6810.02 828.5 6757.03 1091.77C6734.17 1209.77 6728.65 1330.48 6740.63 1450.08C6752.05 1570.58 6785.25 1688 6838.62 1796.62C6890.35 1897.14 6958.06 1956.02 7037.54 1972C7198.2 2004.38 7344.55 1831.95 7397.96 1566.16C7442.96 1342 7419.41 1071.58 7311.75 871.397ZM5073.12 1724.71V681.304H4157.56V712.846C4279.94 730.93 4337.98 823.032 4283.73 972.751C3996.07 1750.78 4012.89 1715.88 3996.07 1778.12C3977.98 1718.4 3936.35 1571.21 3869.9 1386.58C3803.45 1201.96 3758.03 1079.57 3739.95 1024.9C3669.71 809.154 3693.27 730.51 3807.66 715.37V681.304H3213.83V715.37C3302.57 733.454 3382.05 834.808 3445.56 1016.91L3536.4 1253.68C3636.49 1509.38 3754.25 1862.65 3793.36 1982.09H3990.6C4054.11 1797.47 4308.96 1056.86 4343.03 983.265C4371.57 910.415 4414.48 844.052 4469.2 788.126V788.126C4516.8 742.377 4579.82 716.119 4645.83 714.528C4664.53 713.155 4683.31 715.741 4700.94 722.119C4718.57 728.496 4734.66 738.522 4748.16 751.54C4761.65 764.558 4772.25 780.276 4779.26 797.668C4786.26 815.06 4789.52 833.734 4788.82 852.471V969.387C4788.82 969.387 4788.82 971.489 4788.82 972.751V1724.71C4788.82 1870.22 4718.59 1937.93 4645.41 1948.45V1982.09H5212.74V1948.45C5135.36 1937.93 5073.12 1870.22 5073.12 1724.71Z" fill="#232426"/>
+<path d="M8651.28 0H7656.24V681.304H8651.28L8454.88 340.652L8651.28 0Z" fill="#232426"/>
+<path d="M8705.83 633.361V681.304H8700.79V633.361H8681.02V628.734H8723.08V633.361H8705.83Z" fill="#232426"/>
+<path d="M8754.99 681.304L8736.9 635.884V681.304H8732.28V628.734H8739.01L8757.09 674.575L8775.18 628.734H8781.9V681.304H8776.86V635.884L8759.19 681.304H8754.99Z" fill="#232426"/>
+</svg>
diff --git a/README.md b/README.md
index 49441583..a10fbda4 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,7 @@ Especially those generously supporting us at the *The Organization* tier and hig
 <p align="center">
    <a href="https://www.variomedia.de/"><img src="https://raw.githubusercontent.com/hynek/structlog/main/.github/sponsors/Variomedia.svg" width="200" height="60" /></a>
    <a href="https://tidelift.com/?utm_source=lifter&utm_medium=referral&utm_campaign=hynek"><img src="https://raw.githubusercontent.com/hynek/structlog/main/.github/sponsors/Tidelift.svg" width="200" height="60" /></a>
+   <a href="https://klaviyo.com/"><img src="https://raw.githubusercontent.com/hynek/structlog/main/.github/sponsors/Klaviyo.svg" width="200" height="60"/></a>
    <a href="https://filepreviews.io/"><img src="https://raw.githubusercontent.com/hynek/structlog/main/.github/sponsors/FilePreviews.svg" width="200" height="60" /></a>
 </p>