This list contains keys that we have mapped to builder entities by look at the extradata field on blocks we see via the Relay APIs. If you are a builder and find inaccuracies under your entity, please get in touch via [email protected].
Antbuilder
Antbuilder
0xb066a09b52c583db4c8bb1eba3c629f20b96d6f9a355b0615da653c8dbc136b85f467e77a4225cde9eadcd45f8693900
Beaverbuild
Beaverbuild
0x96a59d355b1f65e270b29981dd113625732539e955a1beeecbc471dd0196c4804574ff871d47ed34ff6d921061e9fc27
0xb5d883565500910f3f10f0a2e3a031139d972117a3b67da191ff93ba00ba26502d9b65385b5bca5e7c587273e40f2319
0xa21a2f4807a2bcb6b07c10cea241322e0910c30869c1e4eda686b0d69bdcb74d2a140ef994afcf0bb38e0b960df4d2ee
0xacb407cfb554255db2fbbb320f79bb7f1cc1e8d2dc43324e8e31baafd0836340d49c43eebc51828f53bf6d364f9ac207
0xaec4ec48c2ec03c418c599622980184e926f0de3c9ceab15fc059d617fa0eafe7a0c62126a4657faf596a1b211eec347
0x8dde59a0d40b9a77b901fc40bee1116acf643b2b60656ace951a5073fe317f57a086acf1eac7502ea32edcca1a900521
BloXroute
BloXroute
0xafc9274fe595e8cff421ab9e73b031f0dff707ea1852e2233ff070ef18e3876e25c44a9831c4b5f802653d4678ccc31f
0x94aa4ee318f39b56547a253700917982f4b737a49fc3f99ce08fa715e488e673d88a60f7d2cf9145a05127f17dcb7c67
0x80c7311597316f871363f8395b6a8d056071d90d8eb27defd14759e8522786061b13728623452740ba05055f5ba9d3d5
0x976e63c505050e25b70b39238990c78ddf0948685eb8c5687d17ba5089541f37dd3c45999f2db449eac298b1d4856013
0xb086acdd8da6a11c973b4b26d8c955addbae4506c78defbeb5d4e00c1266b802ff86ec7457c4c3c7c573fa1e64f7e9e0
0x8b8edce58fafe098763e4fabdeb318d347f9238845f22c507e813186ea7d44adecd3028f9288048f9ad3bc7c7c735fba
0x82801ab0556f7df1fb9bb3a61ca84beea8285a8dc3c455a7ea16a8b2993fe06058e0e7d275b28ea5d9f2ae995aa72605
0x965a05a1ba338f4bbbb97407d70659f4cea2146d83ac5da6c2f3de824713c927dcba706f35322d65764912e7756103e2
0xb9b50821ec5f01bb19ec75e0f22264fa9369436544b65c7cf653109dd26ef1f65c4fcaf1b1bcd2a7278afc34455d3da6
0x95701d3f0c49d7501b7494a7a4a08ce66aa9cc1f139dbd3eec409b9893ea213e01681e6b76f031122c6663b7d72a331b
0xaa1488eae4b06a1fff840a2b6db167afc520758dc2c8af0dfb57037954df3431b747e2f900fe8805f05d635e9a29717b
Blocknative
Blocknative
0xa66f3abc04df65c16eb32151f2a92cb7921efdba4c25ab61b969a2af24b61508783ceb48175ef252ec9f82c6cdf8d8fd
0x8000008a03ebae7d8ab2f66659bd719a698b2e74097d1e423df85e0d58571140527c15052a36c19878018aaebe8a6fea
0xa00000a975dffbd1ef61953ac6c90b52b70eb0188eb9d030774346c9248f81e875f7e8bc56c4bbbda297a9543cfa051d
0xa88888a1fbd3d15da31c44544c4522b5ad85dd6128eaaa5036ed7a8937a946b2eb887ddbd892d981015038ebd14ea740
0x8638492723b6376bf83ec6eeff53b7b5d490219501e24a722f39af65a49672441d0320aea5659608bcab37e395cd4b73
Boba Builder
Boba Builder
0xab847befe59b5effffa12f47acf44cbf8ef875e7c891a4ee9e9c483254cf9a55f5ed688e43ff5bc6cd9276e99091921b
bobTheBuilder
bobTheBuilder
0xa31892c0466813868f0cd8d3255dab5f84ae1a6d4a28a85bd85a68c30de311b5ad9b535bc611daa6bcf2365677f7a3fd
0x91afe2631915f3fbd83f1d75e13ae8597b593441344bb55bf542b9bac31f662d1c820cafe4cde17291f115bb68a9945a
0x8d6e6c1b552fb5acba2a08eb882008f93f18f0e9c36ff96983778a3c167dd121ced4d214ae5380a9527a8f5ec64e3efd
0x8c344feeb5426018c1855bc33cf739c15ce43fe780fc13275163f3c33075318619e6b2151407f87a970be24443c9cea4
0x987ff80fcf6c5ee530f4a4352884cb89fc5f57ab287e58dd44d641f3bbe4cc40633d6ba0bbecc9c81b1d5be40a2abb99
BuildAI
BuildAI
0x82ba7cadcdfc1b156ba2c48c1c627428ba917858e62c3a97d8f919510da23d0f11cf5db53cb92a5faf5de7d31bf38632
Builder
0x69
Builder 0x69
0x8bc8d110f8b5207e7edc407e8fa033937ddfe8d2c6f18c12a6171400eb6e04d49238ba2b0a95e633d15558e6a706fbe4
0xb8fceec09779ff758918a849bfe8ab43cea79f6a98320af0af5b030f6a7850fcc5883cb965d02efb10eed1ffa987e899
0xb194b2b8ec91a71c18f8483825234679299d146495a08db3bf3fb955e1d85a5fca77e88de93a74f4e32320fc922d3027
0xa971c4ee4ac5d47e0fb9e16be05981bfe51458f14c06b7a020304099c23d2d9952d4254cc50f291c385d15e7cae0cf9d
0xa4fb63c2ceeee73d1f1711fadf1c5357ac98cecb999d053be613f469a48f7416999a4da35dd60a7824478661399e6772
Eden Network
Eden Network
0xa412007971217a42ca2ced9a90e7ca0ddfc922a1482ee6adf812c4a307e5fb7d6e668a7c86e53663ddd53c689aa3d350
0x8e39849ceabc8710de49b2ca7053813de18b1c12d9ee22149dac4b90b634dd7e6d1e7d3c2b4df806ce32c6228eb70a8b
0x91970c2db7c12510acb2e9c45844f7de602f83a7f31064f7ca04a807b607d7aebfc0abda73c036a92e5c3e56ebca04b7
0xa5eec32c40cc3737d643c24982c7f097354150aac1612d4089e2e8af44dbeefaec08a11c76bd57e7d58697ad8b2bbef5
EigenPhi
EigenPhi
0x8c0d45833884744d8cc4bb3438c3e93bcbc1436a25da5da44cc357e93bc0a7eea1d4664c287c4c63958eedada3846ae8
0xaa1488eae4b06a1fff840a2b6db167afc520758dc2c8af0dfb57037954df3431b747e2f900fe8805f05d635e9a29717b
0x8c0d45833884744d8cc4bb3438c3e93bcbc1436a25da5da44cc357e93bc0a7eea1d4664c287c4c63958eedada3846ae8
Eth-builder.com
Eth-builder.com
0x8ed74896fb129ac7f48d6a2908400044103b65d5c4e8f63feafd849f90fc174a4b71206a51b9453c12292bab3a92a4a2
0x8ea1393f49d894ae22ec86e38d9aeb64b8336dac947e69cb8468acf510d010ce0b51b21ac3e1244bdb91c52e020ea525
0x8e96593b5418b162e7f7d5c165fef2566a67d5e03357baa780a2956a6f2c0b6426c20d7f82f527bcaa1719ebbc8d6048
0x8ee8f19da59077f203110aa1c897eac75d93dfb0e3675fe1a64e4d3f2fbc0c652551297c8ff4210d790d2bf8d4fb7104
0x8ef6185b16ab8fe018ba98c9f514522a60e437be0e8d8b88ade174d3b859256ceb464f766c268458bfd33142b2913a0e
0x8eb772d96a747ba63af7acdf92dc775a859f76a77e4c6ed124dca6360e74e4e798a75a925eb8fd0dde866317fff18ad0
0x8ecd091acecda7907aefa2a86253de9e4b4ba3d1d69bf45be9289bb6876d9e611d5281865db2c792ae2dca3001b0a4a8a
Flashbots
Flashbots
0x81babeec8c9f2bb9c329fd8a3b176032fe0ab5f3b92a3f44d4575a231c7bd9c31d10b6328ef68ed1e8c02a3dbc8e80f9
0xa1dead01e65f0a0eee7b5170223f20c8f0cbf122eac3324d61afbdb33a8885ff8cab2ef514ac2c7698ae0d6289ef27fc
0x81beef03aafd3dd33ffd7deb337407142c80fea2690e5b3190cfc01bde5753f28982a7857c96172a75a234cb7bcb994f
0xb89b9308fbc6c2998c7e60e39424b858c74b02c234b3e0fa5ecf7c3971208dfa5f92e0bdbe16fc24abfd71c248acf0f9
0x81babad2d5fd9413c942f49bfd86bc1dca5b02ff4cd065a10c7ab05713e63883056e6a87777e236424574aa25bbe3e99
0xa35e2b13ef528efbed8d2f709c0eb9eceb1225ed0605a653ba923588b0150c94772a9ba1c809d048e321f6b73d905c60
0xa1defa73d675983a6972e8686360022c1ebc73395067dd1908f7ac76a526a19ac75e4f03ccab6788c54fdb81ff84fc1
0x81babeec8c9f2bb9c329fd8a3b176032fe0ab5f3b92a3f44d4575a231c7bd9c31d10b6328ef68ed1e8c02a3dbc8e80f9
0xa1dead01e65f0a0eee7b5170223f20c8f0cbf122eac3324d61afbdb33a8885ff8cab2ef514ac2c7698ae0d6289ef27fc
0x81beef03aafd3dd33ffd7deb337407142c80fea2690e5b3190cfc01bde5753f28982a7857c96172a75a234cb7bcb994f
0xb89b9308fbc6c2998c7e60e39424b858c74b02c234b3e0fa5ecf7c3971208dfa5f92e0bdbe16fc24abfd71c248acf0f9
0x81babad2d5fd9413c942f49bfd86bc1dca5b02ff4cd065a10c7ab05713e63883056e6a87777e236424574aa25bbe3e99
0xa35e2b13ef528efbed8d2f709c0eb9eceb1225ed0605a653ba923588b0150c94772a9ba1c809d048e321f6b73d905c60
0xa1defa73d675983a6972e8686360022c1ebc73395067dd1908f7ac76a526a19ac75e4f03ccab6788c54fdb81ff84fc1
f1b.io
f1b.io
0xabc387dff20ff4bda974b7f3041ea857d591681cc03271519196587a2d6b30c953ea4df11acf637db76f462834a8c80e
finest artisanal blocks
finest artisanal blocks
0xb3d48d36bb54c159417d3e87a890ff6bf513b14bdba5b823456813dde13afdf78d0f29e9dc2f798d734ee2abaad17182
0x984357f7e6489e5e04049920bf63087ee6904272e937371f27ae84c064c36ae28f0f7bbb9f127fcd736df63a34172c11
Lightspeed
Lightspeed
0x84b02bdb674a28dea0467d3dded2b4aad11c0c5dba79b3d11c38476e2f45eb937ac078492781cca8d2123c2c574a7eb8
0xb3a4b137b0224321813151568035e4c0dd7af8a2523a606a73b7d459a6202e7d6d58f2149a32bc2fe85980866fdc0c92
Lucius Papirius Mugillanus
Lucius Papirius Mugillanus
0xaa1488eae4b06a1fff840a2b6db167afc520758dc2c8af0dfb57037954df3431b747e2f900fe8805f05d635e9a29717b
Manifold
Manifold
0x8d0187110022b21a97a265d9b98aae51cdd563e53ceacb6ca9ebd0dcdac91866a52aff73836d95ef1e587591291abb02
Manta
Manta
0xb1b734b8dd42b4744dc98ea330c3d9da64b7afc050afed96875593c73937d530a773e35ddc4b480f9d2e1d5ba452a469
0xa0d0dbdf7b5eda08c921dee5da7c78c34c9685db3e39e81eb91da94af29eaa50f1468813c86503bf41b4b51bf772800e
0xb5a688d26d7858b38c44f44568d68fb94f112fc834cd225d32dc52f0277c2007babc861f6f157a6fc6c1dc25bf409046
0x906c185200638862772a530fbe2ef16c1f6539e0b68c278e1088f635d81bd08562be688ceea88028421016c7c5fc7101
Nfactorial
Nfactorial
0xa82f9afce834eeb0e6d9aa5bb99d2d87a2ba6d97f6f7db6b73646965f3dec263f8dc8e6e2a0d2d9acd6253c383f08c19
PLC.eth
PLC.eth
0x85beff526119fe3fbc718e207140cb7bb154c9dfc03b502bc569434a83c28758fa0d5116610dd9f71b9dba212d54f4bd
0xaa1488eae4b06a1fff840a2b6db167afc520758dc2c8af0dfb57037954df3431b747e2f900fe8805f05d635e9a29717b
Payload.de
Payload.de
0x85b603e6b0b27e117e80c67a615060b3d0441ae2aee163cc49f30c964155e46fbd324b25c0fbadf9f4995a4b8b245be3
0x8070d2fbed08a3f251189cf304b5aa4de1c6817189e6779fa91bfed92a54c14ad81a86e3860040a36cbe6225ad5961e2
0xac193b0f72fa96fab3695697f01a27441fdc70fe38bc6ad1eb4fd887f84025eb1708cd1678b6b4d7a63cc62039845251
0xac4aac0f9ce2bafd4bab348c6b4d8a31e583043baea9bf0a619ebcd8568694b64888f0c9ca40c1c1f93e9c34e1b39cb1
0xa65a9e75ae055aefbd850ff8e3baf8cb999814038f8e48dd34447ecf3e3c5c0a631fc0c1147b5b1c74aa389754612882
0x89551cb5def7a710d58c3f3c0b234266df9cab138d6bd79e58b03c3681030751f1aab2e2b08a706e2aba6db23ee1fb8b
0x86d59ae03894b181e2935ec684912571da5888a6b2bd7870d58411eace02416a8d04aa0ba33545fc87f833d06b64253f
0x8b32405861c6b674de8db46dfeb1f7c13ebc2f9e038994efa63b029cd39e36f7324a8401200889e2bbd5f07827b2c895
0x98e7e3f6e08470add6bc2d312ed33cd8d59775782c85d7e7f98a34e792f1c4326b1c89846723e7fbe826a0cd559bc574
0x958514edaa1889e029548916327f3090da2de32afa4d9e2aff8489070e3bf7639000735adf02d86aa6bc8ec287045570
0x92183c4b21b5264659a3af2fb631a7f291d3e8fcbfd895f1952145fd4c093cb3e0831d1732fa5c6cff85025a56fb07da
Rsync
Rsync
0x945fc51bf63613257792926c9155d7ae32db73155dc13bdfe61cd476f1fd2297b66601e8721b723cef11e4e6682e9d87
0x83d3495a2951065cf19c4d282afca0a635a39f6504bd76282ed0138fe28680ec60fa3fd149e6d27a94a7d90e7b1fb640
0x978a35c39c41aadbe35ea29712bccffb117cc6ebcad4d86ea463d712af1dc80131d0c650dc29ba29ef27c881f43bd587
0xacfdcf458829f4693168a57d0659253069d687682bc64ec130d935ecb6e05ccfb80c138bd3cf53546c86715696612ec8
0x8e6df6e0a9ca3fd89db2aa2f3daf77722dc4fbcd15e285ed7d9560fdf07b7d69ba504add4cc12ac999b8094ff30ed06c
0x8aab0ed724d2c7f94af139bd2249ab511f08474ac69e761e56918403c81c358f5f8a6d61c62a86dc4cd7bcad935f49d9
Teehee
Teehee
0x805492e33b23293a17d0defd5be6abe0449390e188fda1826a5417a99ae9ec04e7b334676d84428b505ce6386ed9992a
Titan (titanbuilder.xyz)
Titan (titanbuilder.xyz)
0xb67eaa5efcfa1d17319c344e1e5167811afbfe7922a2cf01c9a361f465597a5dc3a5472bd98843bac88d2541a78eab08
0x94a076b27f294dc44b9fd44d8e2b063fb129bc85ed047da1cefb82d16e1a13e6b50de31a86f5b233d1e6bbaca3c69173
0xb26f96664274e15fb6fcda862302e47de7e0e2a6687f8349327a9846043e42596ec44af676126e2cacbdd181f548e681
0x95c8cc31f8d4e54eddb0603b8f12d59d466f656f374bde2073e321bdd16082d420e3eef4d62467a7ea6b83818381f742
0xabf1ad5ec0512cb1adabe457882fa550b4935f1f7df9658e46af882049ec16da698c323af8c98c3f1f9570ebc4042a83
spiderbuilder.net
spiderbuilder.net
0xa630217edeeb6e4f85bce4e2766559aa58f94ee43c8a16900c1d95dae9801efc551c25d950f362ec8daeec0769b69bcb
0xb5290d65b0b3f145630cf89c132dd647ea046c1f7fbc79df727c7c372fa18b0c88b84dd48da2b4a8ef7602ba293469cd
0xb34a533cc69e98573ce6eef4c8364dc873ae677eaa644a51c8fe3367ee7ef1b1aa9d9458d59ec86ee8e25a7720dcc107
0xa4e5b8d42b092d9db7ad828c538dd47ee8f21af920b79b79d47559a7e3dbc026c7a348a5b0526efc5d66c64abce198fa
0x89c70d784ed1c7752a15be119dbbc7f077c98ad28ee44b2b280c27d2ad760fa2f31f1caac1b333689c981df9627fbac7
0x8c4c0e9af00edb8a25fa8684e07118c0cbd49459b87337953a4c3d6db57b896f6914070192fb404f22917fa44cf2aef4
0xa46444fdef3a72da9a069e95da0703fdb3ea5a5d0ee8633b55bc71d46ec79b888582749059c468be1cf62808a57bdaba