diff --git a/packages/delegate/src/defaultMergedResolver.ts b/packages/delegate/src/defaultMergedResolver.ts
index a85837d2229..a023b1d3090 100644
--- a/packages/delegate/src/defaultMergedResolver.ts
+++ b/packages/delegate/src/defaultMergedResolver.ts
@@ -3,7 +3,7 @@ import { defaultFieldResolver, GraphQLResolveInfo } from 'graphql';
 import { getResponseKeyFromInfo, getErrors } from '@graphql-tools/utils';
 
 import { handleResult } from './results/handleResult';
-import { getSubschema } from './subschema';
+import { getSubschema } from './Subschema';
 
 /**
  * Resolver that knows how to:
diff --git a/packages/delegate/src/delegateToSchema.ts b/packages/delegate/src/delegateToSchema.ts
index 4d55f2f0af1..90d13414643 100644
--- a/packages/delegate/src/delegateToSchema.ts
+++ b/packages/delegate/src/delegateToSchema.ts
@@ -36,10 +36,10 @@ import {
   IDelegateToSchemaOptions,
   IDelegateRequestOptions,
   SubschemaConfig,
-  isSubschemaConfig,
   ExecutionParams,
   StitchingInfo,
 } from './types';
+import { isSubschemaConfig } from './Subschema';
 
 export function delegateToSchema(options: IDelegateToSchemaOptions | GraphQLSchema): any {
   if (isSchema(options)) {
diff --git a/packages/delegate/src/index.ts b/packages/delegate/src/index.ts
index 8b3a5c8457b..1ef0bbed5a1 100644
--- a/packages/delegate/src/index.ts
+++ b/packages/delegate/src/index.ts
@@ -3,10 +3,8 @@ export { createRequestFromInfo, createRequest } from './createRequest';
 export { defaultMergedResolver } from './defaultMergedResolver';
 export { createMergedResolver } from './createMergedResolver';
 export { handleResult } from './results/handleResult';
-export { getSubschema } from './subschema';
+export { Subschema, isSubschema, isSubschemaConfig, getSubschema } from './Subschema';
 
 export * from './transforms';
 
-export { Subschema } from './GraphQLSubschema';
-
 export * from './types';
diff --git a/packages/delegate/src/proxiedResult.ts b/packages/delegate/src/proxiedResult.ts
index 437432d18e3..f812d1e1db7 100644
--- a/packages/delegate/src/proxiedResult.ts
+++ b/packages/delegate/src/proxiedResult.ts
@@ -5,7 +5,7 @@ import { mergeDeep, ERROR_SYMBOL, relocatedError, setErrors, getErrors } from '@
 import { handleNull } from './results/handleNull';
 
 import { FIELD_SUBSCHEMA_MAP_SYMBOL, OBJECT_SUBSCHEMA_SYMBOL } from './symbols';
-import { getSubschema, setObjectSubschema } from './subschema';
+import { getSubschema, setObjectSubschema } from './Subschema';
 import { SubschemaConfig } from './types';
 
 export function isProxiedResult(result: any) {
diff --git a/packages/delegate/src/results/handleObject.ts b/packages/delegate/src/results/handleObject.ts
index 3a0b6ae1b4d..51d18e0d66a 100644
--- a/packages/delegate/src/results/handleObject.ts
+++ b/packages/delegate/src/results/handleObject.ts
@@ -9,9 +9,9 @@ import {
 } from 'graphql';
 
 import { collectFields, GraphQLExecutionContext, setErrors, slicedError } from '@graphql-tools/utils';
-import { setObjectSubschema } from '../subschema';
+import { setObjectSubschema, isSubschemaConfig } from '../Subschema';
 import { mergeFields } from '../mergeFields';
-import { MergedTypeInfo, SubschemaConfig, isSubschemaConfig } from '../types';
+import { MergedTypeInfo, SubschemaConfig } from '../types';
 
 export function handleObject(
   type: GraphQLCompositeType,
diff --git a/packages/delegate/src/subschema.ts b/packages/delegate/src/subschema.ts
index c85aac004e9..4eac7d34158 100644
--- a/packages/delegate/src/subschema.ts
+++ b/packages/delegate/src/subschema.ts
@@ -1,6 +1,8 @@
 import { GraphQLSchema } from 'graphql';
 
-import { SubschemaConfig } from './types';
+import { Transform, applySchemaTransforms } from '@graphql-tools/utils';
+
+import { SubschemaConfig, MergedTypeConfig, CreateProxyingResolverFn, Subscriber, Executor } from './types';
 
 import { FIELD_SUBSCHEMA_MAP_SYMBOL, OBJECT_SUBSCHEMA_SYMBOL } from './symbols';
 
@@ -12,3 +14,33 @@ export function getSubschema(result: any, responseKey: string): GraphQLSchema |
 export function setObjectSubschema(result: any, subschema: GraphQLSchema | SubschemaConfig) {
   result[OBJECT_SUBSCHEMA_SYMBOL] = subschema;
 }
+
+export function isSubschemaConfig(value: any): value is SubschemaConfig {
+  return Boolean((value as SubschemaConfig).schema);
+}
+
+export function isSubschema(value: any): value is Subschema {
+  return Boolean((value as Subschema).transformedSchema);
+}
+
+export class Subschema {
+  public schema: GraphQLSchema;
+  public rootValue?: Record<string, any>;
+  public executor?: Executor;
+  public subscriber?: Subscriber;
+  public createProxyingResolver?: CreateProxyingResolverFn;
+  public transforms: Array<Transform>;
+  public transformedSchema: GraphQLSchema;
+  public merge?: Record<string, MergedTypeConfig>;
+
+  constructor(config: SubschemaConfig) {
+    this.schema = config.schema;
+    this.executor = config.executor;
+    this.subscriber = config.subscriber;
+    this.createProxyingResolver = config.createProxyingResolver;
+    this.transforms = config.transforms ?? [];
+    this.merge = config.merge;
+
+    this.transformedSchema = applySchemaTransforms(this.schema, this.transforms);
+  }
+}
diff --git a/packages/delegate/src/types.ts b/packages/delegate/src/types.ts
index 73ec599fd12..3203cc82701 100644
--- a/packages/delegate/src/types.ts
+++ b/packages/delegate/src/types.ts
@@ -13,7 +13,7 @@ import {
 } from 'graphql';
 import { Operation, Transform, Request, TypeMap, ExecutionResult } from '@graphql-tools/utils';
 
-import { Subschema } from './GraphQLSubschema';
+import { Subschema } from './Subschema';
 
 export interface IDelegateToSchemaOptions<TContext = Record<string, any>, TArgs = Record<string, any>> {
   schema: GraphQLSchema | SubschemaConfig | Subschema;
@@ -125,10 +125,6 @@ export type MergedTypeResolver = (
   selectionSet: SelectionSetNode
 ) => any;
 
-export function isSubschemaConfig(value: any): value is SubschemaConfig {
-  return Boolean((value as SubschemaConfig).schema);
-}
-
 export interface StitchingInfo {
   transformedSchemas: Map<GraphQLSchema | SubschemaConfig, GraphQLSchema>;
   fragmentsByField: Record<string, Record<string, InlineFragmentNode>>;