add Indexing Co to list of indexers (#877)

apps/base-docs/docs/tools/data-indexers.md

@@ -104,6 +104,21 @@ To get started, you can [sign up for an account](https://app.ghostlogs.xyz/ghost
 
 ---
 
+## The Indexing Company
+
+[The Indexing Company](https://www.indexing.co/) provides indexing as a service, capable of indexing any chain (EVM and non-EVM) with an RPC endpoint and integrating off-chain data within the same infrastructure.
+
+Our services include data transformations, aggregations, and streamlined data flows, allowing teams to develop their products faster while saving on developer resources, time, and money. Our solution is ideal for teams needing advanced data engineering for modular chain setups, multi-chain products, L1/L2/L3 chains and AI.
+
+To get started contact us [here](https://www.indexing.co/get-in-touch).
+
+#### Supported Networks
+
+- Base Mainnet
+- Base Sepolia (Testnet)
+
+---
+
 ## Moralis
 
 [Moralis](https://moralis.io/?utm_source=base-docs&utm_medium=partner-docs) offers comprehensive data APIs for crypto, offering both indexed and real-time data across 15+ chains. Moralis' APIs include portfolio and wallet balances, NFT data, token data, price data, candlestick data, net worth data, and a lot more. All of the data is enriched with things like metadata, parsed events and address labels.