-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 EdJLjFu4gEMcKyuMxKmksSAvkdgDM1qOAyGf+DlB6iNa0tvKYT3x/C7325O6SATv
 gNUdXyNIGDmDSN60r2NBvQ==

<SEC-DOCUMENT>0001036050-98-000862.txt : 19980515
<SEC-HEADER>0001036050-98-000862.hdr.sgml : 19980515
ACCESSION NUMBER:		0001036050-98-000862
CONFORMED SUBMISSION TYPE:	10-Q
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	19980331
FILED AS OF DATE:		19980514
SROS:			NASD

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SEI CORP
		CENTRAL INDEX KEY:			0000350894
		STANDARD INDUSTRIAL CLASSIFICATION:	SECURITY BROKERS, DEALERS & FLOTATION COMPANIES [6211]
		IRS NUMBER:				231707341
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-Q
		SEC ACT:		
		SEC FILE NUMBER:	000-10200
		FILM NUMBER:		98620588

	BUSINESS ADDRESS:	
		STREET 1:		1 FREEDOM VALLEY DRIVE
		CITY:			OAKS
		STATE:			PA
		ZIP:			19456-1100
		BUSINESS PHONE:		6106761000

	MAIL ADDRESS:	
		STREET 1:		1 FREEDOM VALLEY DRIVE
		CITY:			OAKS
		STATE:			PA
		ZIP:			19456-1100
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-Q
<SEQUENCE>1
<FILENAME>000103605098000862-001-seq1-10-q.txt
<DESCRIPTION>FORM 10-Q PERIOD ENDED MARCH 31, 1998
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-27
<SEQUENCE>2
<FILENAME>000103605098000862-002-seq2-ex-27.txt
<DESCRIPTION>FINANCIAL DATA SCHEDULE
</DOCUMENT>
</SUBMISSION>