diff --git a/core/chains/evm/client/errors.go b/core/chains/evm/client/errors.go
index 812733b35f..563ba3da32 100644
--- a/core/chains/evm/client/errors.go
+++ b/core/chains/evm/client/errors.go
@@ -254,6 +254,10 @@ var aStar = ClientErrors{
 	TerminallyUnderpriced: regexp.MustCompile(`(?:: |^)(gas price less than block base fee)$`),
 }
 
+var berachain = ClientErrors{	
+	Fatal:           regexp.MustCompile(`(: |^)'*invalid chain ID`),	
+}
+
 var mantle = ClientErrors{
 	InsufficientEth: regexp.MustCompile(`(: |^)'*insufficient funds for gas \* price \+ value`),
 	Fatal:           regexp.MustCompile(`(: |^)'*invalid sender`),
@@ -271,7 +275,7 @@ var internal = ClientErrors{
 	TerminallyStuck: regexp.MustCompile(TerminallyStuckMsg),
 }
 
-var clients = []ClientErrors{parity, geth, arbitrum, metis, substrate, avalanche, nethermind, harmony, besu, erigon, klaytn, celo, zkSync, zkEvm, mantle, aStar, gnosis, internal}
+var clients = []ClientErrors{parity, geth, arbitrum, metis, substrate, avalanche, nethermind, harmony, besu, erigon, klaytn, celo, zkSync, zkEvm, mantle, aStar, berachain, gnosis, internal}
 
 // ClientErrorRegexes returns a map of compiled regexes for each error type
 func ClientErrorRegexes(errsRegex config.ClientErrors) *ClientErrors {
diff --git a/core/chains/evm/client/errors_test.go b/core/chains/evm/client/errors_test.go
index e4a9900d4a..9f16a7a367 100644
--- a/core/chains/evm/client/errors_test.go
+++ b/core/chains/evm/client/errors_test.go
@@ -407,6 +407,8 @@ func Test_Eth_Errors_Fatal(t *testing.T) {
 		{"failed to forward tx to sequencer, please try again. Error message: 'invalid sender'", true, "Mantle"},
 
 		{"client error fatal", true, "tomlConfig"},
+
+		{"invalid chain ID", true, "Berachain"},
 	}
 
 	for _, test := range tests {
diff --git a/core/chains/evm/config/toml/defaults/BOB_Testnet.toml b/core/chains/evm/config/toml/defaults/BOB_Testnet.toml
new file mode 100644
index 0000000000..f749e5e729
--- /dev/null
+++ b/core/chains/evm/config/toml/defaults/BOB_Testnet.toml
@@ -0,0 +1,12 @@
+ChainID = '808813'
+FinalityDepth = 900 # compat test finality_depth: ~850
+LogPollInterval = '5s' # compat test block_time:  ~0.5s 
+
+NoNewFinalizedHeadsThreshold = '10m' # with 5s threw PLENTY of [RPC's finalized state is out of sync; no new finalized heads received for 5s (last finalized head received was 4939141)]
+
+FinalityTagEnabled = true #compat test get_logs>supports_finalized_tag: returned true
+
+[GasEstimator]
+EIP1559DynamicFees = true
+Mode = 'FeeHistory'
+
diff --git a/core/chains/evm/config/toml/defaults/Berachain_Testnet.toml b/core/chains/evm/config/toml/defaults/Berachain_Testnet.toml
new file mode 100644
index 0000000000..ed71c50915
--- /dev/null
+++ b/core/chains/evm/config/toml/defaults/Berachain_Testnet.toml
@@ -0,0 +1,12 @@
+ChainID = '80084'
+FinalityDepth = 10 # compat test finality_depth: 1
+LogPollInterval = '5s' # compat test block_time:  ~1.7s 
+
+NoNewFinalizedHeadsThreshold = '10m' # with 5s threw PLENTY of [RPC's finalized state is out of sync; no new finalized heads received for 5s (last finalized head received was 4939141)]
+
+FinalityTagEnabled = true #compat test get_logs>supports_finalized_tag: returned true
+
+[GasEstimator]
+EIP1559DynamicFees = true
+Mode = 'FeeHistory'
+
diff --git a/core/chains/evm/config/toml/defaults/Bsquared_Testnet.toml b/core/chains/evm/config/toml/defaults/Bsquared_Testnet.toml
new file mode 100644
index 0000000000..2df06dafd0
--- /dev/null
+++ b/core/chains/evm/config/toml/defaults/Bsquared_Testnet.toml
@@ -0,0 +1,12 @@
+ChainID = '1123'
+FinalityDepth = 2000 # compat test finality_depth: ~1900
+LogPollInterval = '5s' # compat test block_time:  ~2s 
+
+NoNewFinalizedHeadsThreshold = '10m' # with 10m threw PLENTY of [RPC's finalized state is out of sync; no new finalized heads received for 10m0s (last finalized head received was 3100170)]
+
+FinalityTagEnabled = true #compat test get_logs>supports_finalized_tag: returned true
+
+[GasEstimator]
+EIP1559DynamicFees = true
+Mode = 'FeeHistory'
+
diff --git a/core/chains/evm/config/toml/defaults/Unichain_Testnet.toml b/core/chains/evm/config/toml/defaults/Unichain_Testnet.toml
new file mode 100644
index 0000000000..d36e921918
--- /dev/null
+++ b/core/chains/evm/config/toml/defaults/Unichain_Testnet.toml
@@ -0,0 +1,11 @@
+ChainID = '1301'
+FinalityDepth = 2000 # compat test finality_depth: ~1900
+LogPollInterval = '5s' # compat test block_time:  ~1s 
+
+NoNewFinalizedHeadsThreshold = '10m' # not sure what to put here, from Worldchain set to 5s threw a huge amount of errors
+
+FinalityTagEnabled = true #compat test get_logs>supports_finalized_tag: returned true
+
+[GasEstimator]
+EIP1559DynamicFees = true
+Mode = 'FeeHistory'
\ No newline at end of file
diff --git a/core/chains/evm/config/toml/defaults/Worldchain_Testnet.toml b/core/chains/evm/config/toml/defaults/Worldchain_Testnet.toml
new file mode 100644
index 0000000000..fb5a6d0bd9
--- /dev/null
+++ b/core/chains/evm/config/toml/defaults/Worldchain_Testnet.toml
@@ -0,0 +1,11 @@
+ChainID = '4801'
+FinalityDepth = 2500 # compat test finality_depth: ~2400, but it also threw 4000 in other round, which is it? 
+LogPollInterval = '5s' # compat test block_time:  ~0.5s 
+
+NoNewFinalizedHeadsThreshold = '10m' # with 5s threw PLENTY of [RPC's finalized state is out of sync; no new finalized heads received for 5s (last finalized head received was 4939141)]
+
+FinalityTagEnabled = true #compat test get_logs>supports_finalized_tag: returned true
+
+[GasEstimator]
+EIP1559DynamicFees = true
+Mode = 'FeeHistory'